DISTRIBUTOR PRICE BOOK

DISTRIBUTOR PRICE BOOK EFFECTIVE AUGUST 1, 2016 www.hotwater.com AOSAA81000 July 2016 A. O. Smith Corporation Printed in the U.S.A.

Ordering Information...3 RESIDENTIAL GAS Vertex High Efficiency Power Vent...4 Vertex 100 High Efficiency Power Direct Vent...4 Effex High Efficiency...4 High Efficiency Gas...5 Energy Saver Standard Atmospheric Vent...5 Energy Saver Direct Vent...5 Non-Condensing Power Vent Gas...6 High Efficiency Non-Condensing Ultra-Low NOx Power Vent...6 ProMax Power Direct Vent...6 ProMax Direct Vent Models...7 ProMax Atmospheric Vent Models...7 ProMax High Recovery Atmospheric Vent 75 & 100...8 ProMax Ultra-Low NOx...8 ProMax Ultra-Low NOx High Recovery...8 ProMax Ultra-Low NOx Direct Vent...9 ProMax SL Circulating Heat Exchanger...9 RESIDENTIAL TANKLESS Tankless Non-Condensing Concentric Vent...10 Tankless Non-Condensing...10 Tankless Non-Condensing Ultra-Low NOx...11 Tankless Condensing High Efficiency...11 Tankless Venting...12 Tankless Venting Kits and Accessories...13 RESIDENTIAL HYBRID ELECTRIC Voltex Hybrid Electric Heat Pump Models... 14-15 Inlet Air and Outlet Air Duct Adapter Kits... 14-15 RESIDENTIAL ELECTRIC Conservationist Electric Models...16 ProMax Standard Electric Models...17 ProMax Specialty Electric Models...17 Mobile Home Electric Models...18 Residential Electric Ordering Information...19 RESIDENTIAL EXTENDED WARRANTY Extended Warranty...20 RESIDENTIAL SOLAR Cirrex Solar Electric System Packages...21 Deluxe and Standard Solar System Packages...22 Indirect Solar Booster Tanks...23 Direct Solar Booster Tanks...23 Solar Thermal Collectors...23 Integrated Solar Pump Stations...24 Solar Accessories... 24-25 Residential Solar Extended Warranty...26 RESIDENTIAL PUMP AND EXPANSION TANKS Diaphragm Pump Tanks...27 Expansion Tanks... 27-28 Glasslined Storage Tanks...28 Galvanized Storage Tanks...28 RESIDENTIAL TABLE OF CONTENTS

COMMERCIAL TABLE OF CONTENTS COMMERCIAL GAS AND ELECTRIC INFORMATION Warranties, Accessories & Ordering Information...29 REMOTE MONITORING SYSTEM icomm and icomm Elite...30 BUILDING MANAGEMENT SYSTEM BACnet and Modbus Interface...31 COMMERCIAL GAS AND OIL FIRED Cyclone HE High Efficiency...32 Cyclone Xi High Efficiency Power Direct Vent...32 Cyclone MXi High Efficiency...32 Master-Fit BTR and BTR Booster...33 Conservationist BL Ultra-Low NOx Single Flue...34 Conservationist BTF Power Vent Single Flue...34 Conservationist BPD Power Direct Vent Single Flue...34 Master-Fit BTL Ultra-Low NOx...35 Conservationist BT Single Flue...35 Power Burner BTP...36 Power Burner BTPV...36 Oil Fired COF Models...37 COMMERCIAL TANKLESS Tankless Rack System...38 Tankless Non-Condensing...38 Tankless Condensing High Efficiency...38 COMMERCIAL ELECTRIC Light Service...39 Dura-Power Preferred...40 Gold Series - DRE Electric...41 Gold Xi Series - DVE Electric...42 SPECIALTY COMMERCIAL GAS AND OIL FIRED Custom Heavy-Duty Power Gas Tank-Type BTP... 43-44 Custom Heavy-Duty Tank-Type Large Volume COF...45 Power Burner COBT...46 SPECIALTY COMMERCIAL ELECTRIC Custom Xi Series Heavy Duty Electric DSE... 47-49 Dura-Power Xi Electric ASME Vertical and Horizontal DVE/DHE... 49-52 Dura-Power Booster...53 COMMERCIAL SOLAR Solar Thermal Collectors...54 SPECIALTY COMMERCIAL GAS XP High Efficiency Condensing Circulating Water Heaters...55 XP Ac-U-Temp...55 VF Variable Fire Circulating Water Heater VWH... 56-57 Burkay Genesis Circulating GWH Models and Options...58 Burkay Genesis Ac-U-Temp Systems...58 Burkay Genesis Circulating Water Heater Options & Accessories... 58-59 Burkay Circulating Water Heaters HWM...60 Burkay Hotwater Supply HW...60 HW Burkay System Packages... 60-61 COMMERCIAL STORAGE TANKS Storage Tanks - Small and Large Volume - Unjacketed...61 Storage Tanks - Small and Large Volume - Jacketed...62 Custom High Draw Storage Tanks & Accessories... 63-64 y Jacket and Insulation Adder...65 Outdoor y Jacket and Insulation Adder...66 High Efficiency y Jacket and Insulation Adder...66 COMMERCIAL ELECTRIC BOILERS Custom Steam and Hot Water Heating Coils...67 Custom Hot Water Supply Generators...68 Dura-Power NW Models and Options... 69-70 COMMERCIAL ACCESSORIES Accessories... 71-73 MISCELLANEOUS Commercial Stocking Water Heater Program...74 Commercial Freight Policy...75 Commercial Rack System Freight Charges...76 Department Information...77

TERMS OF SALE: PRICES ARE EFFECTIVE AT TIME SHIPMENTS ARE MADE. s are subject to change without notice. s are subject to any sales or use tax that may be assessed thereon. s are F.O.B. factory manufacture. ADD ON: s are net. WAREHOUSE SHIPMENTS: TRANSPORTATION CLAIMS: RETURN OF MERCHANDISE: LOAD FACTOR: WAREHOUSE TERMS: TERMS: 2%, 10th Prox., 25th. (Other than McBee, SC, El Paso, TX, and Ashland City, TN) s are F.O.B. warehouse. price and regular terms apply. No freight allowance. Merchandise shipped to our customer becomes property of the buyer upon receipt by the carrier. It is necessary that the merchandise be carefully inspected upon receipt to ensure the units are damage free. In event of either merchandise shortage or damage, the buyer s receiving agent should have the carrier s agent make notation of the condition or shortages on their receiving report so a claim can be filed against the carrier. If damage is discovered after unpacking, the carrier should be notified at once, so inspection can be made and the claimed damage substantiated by the carrier. The buyer under any circumstance must file the claim. No merchandise may be returned to the factory or warehouse for credit without prior written authorization from A. O. Smith. If merchandise is returned (providing it is new and unused), it must be sent freight prepaid and will be subject to a minimum 25% restock charge. All merchandise returned without prior authorization will be refused and returned to the customer with any incurred expenses charged back to the customer. Build-to order merchandise will be reviewed on a production status basis. The load factor represents the percent of cube an individual model consumes in a high cube, 53 trailer. A full load order is quantified when the sum of the load factors equals 100 points. Single-stop load must equal 100 points, two-stop loads should equal 98 points and three-stop loads should equal 96 points. Distance between the first and last stop must not exceed 150 miles without prior approval from the Customer Service Department. All stops must be unloaded in a single day. Load percentages for Pump and Expansion tanks may be used to determine the load factor of a load, however will not count towards the 55-unit minimum order requirement. Commercial water heaters load percentages may not be used when calculating the necessary points for a qualifying residential truckload. The total load factor of a commercial order will determine whether the order qualifies as a truckload. All warehouse shipments will be invoiced at current prices and $15 per residential unit. All shipments are F.O.B. warehouse (freight collect). SPECIAL DELIVERY SERVICES: Please call the customer service department to inquire on the cost of special services such as: Power lift gate deliveries Other special services as needed Inside and construction site deliveries Notification before delivery calls COD billings Driver assist and unload Less than 53 trailer Unloading delay beyond 2 hours RESIDENTIAL WATER HEATER SHIPPING POLICY UNLOADING ALLOWANCE (qualifies when order billed to one customer meets criteria for full load as explained above under load factor with maximum of 3 stops) 55 UNITS OR MORE (which allows manufacture to pool with other orders) DROP-OFF DELIVERY OF 25-54 UNITS PUMP AND EXPANSION TANKS AND TANKLESS HEATERS ON QUALIFYING RESIDENTIAL SHIPMENTS ORDERS OR ORDER ADDITIONS OF LESS THAN 55 UNITS AND ACCOMPANIED WITH INSTRUCTIONS WHICH DO NOT ALLOW ORDER COMBINATIONS TO BE MADE FACTORY PICK-UP ALLOWANCE ON 55 OR MORE UNITS (McBee, SC, El Paso, TX, and Ashland City, TN) PUMP AND/OR EXPANSION TANKS SHIPPING POLICY TANKLESS WATER HEATER SHIPPING POLICY SOLAR WATER HEATER SHIPPING POLICY ORDERS TOTALING $15,000 OR MORE LIGHT-SERVICE COMMERCIAL SHIPPING POLICY ORDERS COMBINED WITH A QUALIFYING FREIGHT ALLOWED RESIDENTIAL ORDER ( from Ashland City, TN or El Paso, TN only) COMMERCIAL WATER HEATER SHIPPING POLICY ANY QUANTITY SHIPPED FROM FACTORY LOCATIONS (McBee, SC, El Paso, TX, and Ashland City, TN) STORAGE TANKS LISTED IN THIS BOOK AND SHIPPED FROM A FACTORY LOCATION FREIGHT ALLOWED $3 PER UNIT FREIGHT ALLOWED RENTON MANUFACTURED PRODUCTS AND SKID MOUNTED NO SYSTEMS COMMERCIAL FACTORY PICK UP ALLOWANCE: WAREHOUSE SHIPMENTS (no handling charge) NO Pick up allowance of $15 per unit at McBee, South Carolina 24-HOUR EMERGENCY SHIPMENTS YES factory only. Does not apply to Light-Service commercial models. LIGHT-SERVICE Commercial models are not covered by this policy. Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 3 YES $100/STOP YES NO $3.50 PER UNIT 54 UNITS OR LESS NO 55 OR MORE UNITS YES Pump and Expansion Tanks DO NOT qualify for the unloading allowance. Pump and Expansion Tanks DO qualify for the TOTAL truckload volume. FREIGHT ALLOWED 16 UNITS OR MORE YES 15 UNITS OR LESS NO ADD-ON TO ALREADY QUALIFIED TANK-TYPE ORDER EXPRESS SHIPMENTS (10 UNITS OR LESS) SHIP WITHIN 24 HOURS Tankless Water Heaters DO NOT qualify for the unloading allowance. Tankless Water Heaters DO NOT qualify for the TOTAL truckload volume. Separate FFA policy applies to Venting and other accessories. Minimum order of $750 must be placed for Venting and Other Accessories combined. LIGHT-SERVICE models DO NOT qualify for the unloading allowance. LIGHT-SERVICE models DO count towards the minimum 55 unit threshold. LIGHT-SERVICE models DO qualify for the TOTAL truckload volume. YES NO YES YES YES YES ORDER INFORMATION

RESIDENTIAL GAS Vertex High Efficiency Power Vent 6-year tank/6-year parts limited warranty ENERGY STAR Qualified 90% Thermal Efficiency Vents with PVC, CPVC, Polypropylene or ABS pipe Model Number Thermal Efficiency Recovery @ 90 F Rise Per Hour BTU Input Per Hour Vent Size Height Diameter Hi Cube Trailer Load GPHE-50 50 90% 92 76,000 2, 3 or 4 71 22 1.39 225 $1,960 Available in natural gas only. Standard model certified for sea level to 5,300 ft. elevation. Order SMR K30 for elevations to 10,100 ft. Optional Condensate Neutralizer Kit available (Part Number 9007959005). See page 71 for more information. Vertex 100 High Efficiency Power Direct Vent 6-year tank/6-year parts limited warranty ENERGY STAR Qualified 96% Thermal Efficiency Vents with PVC, CPVC, Polypropylene or ABS pipe Meets Texas Low-NOx requirements of less than 40ng/J and other districts with same requirements. Complies with SCAQMD Rule 1146.2 and other air quality management districts with similar requirements for Ultra-Low NOx emissions requirements of 14 ng/j or 20ppm Model Number Thermal Efficiency Recovery @ 90 F Rise Per Hour BTU Input Per Hour Vent Size Height Diameter Hi Cube Trailer Load GDHE-50 50 96% 129 100,000 2 or 3 66-3/4 22 1.39 225 $2,424 GDHE-75 75 96% 129 100,000 2 or 3 65-1/4 27-3/4 2.94 382 2,834 Available in Propane (LP) gas. Specify when ordering propane (LP) gas and add $40 to the price. Models certified for sea level to 10,100 ft. elevation. Optional Condensate Neutralizer Kit available (Part number 9007959005). See page 71 for more information. Effex High Efficiency 6-year tank/6-year parts limited warranty ENERGY STAR Qualified Flammable Vapor Ignition Resistant Model Number Energy Recovery @ 90 F Rise Per Hour BTU Input Per Hour Vent Connection Height Diameter Hi Cube Trailer Load GAHH-40 40 0.70 43 40,000 3 or 4 61-3/4 20 1.14 157 $834 GAHH-50 50 0.70 43 40,000 3 or 4 60-5/8 22 0.81 171 877 Available in natural gas only. Water connection is 3/4" on all models. All models are certified from sea level to 10,100 ft. elevation. Requires 120 VAC power supply. 4 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

High Efficiency 6-year tank/6-year parts limited warranty ENERGY STAR Qualified Model Number Tall Models Energy Recovery @ 90 F Rise Per Hour BTU Input Per Hour Requires 120 VAC power supply. Water connection is 3/4" on all models. Specify when ordering Top T&P. All models are certified from sea level to 10,100 ft. elevation. *GCFL-50 available in natural gas only, all other models available in propane (LP) gas. Add $40. Energy Saver Standard Atmospheric Vent 6-year tank/2-year parts limited warranty Meets HUD requirements for manufactured housing installations Foam Thickness Height Diameter Draft Hood Outlet Hi Cube Trailer Load GCF-40 40 0.67 42 40,000 2 64-1/4 20 3 or 4 1.14 152 $668 GCF-50 50 0.67 42 40,000 2 63-1/2 22 3 or 4 1.19 167 712 Short Models GCFL-40 40 0.67 42 40,000 2 54 22 3 or 4 0.63 149 $660 *GCFL-50 50 0.67 42 40,000 2 55-3/4 24 3 or 4 0.88 175 712 Equipped with convertible gas control for natural or propane gas RESIDENTIAL GAS Model Number Energy Recovery @ 90 F Rise Per Hour BTU Input Per Hour Natural Gas All models ship from factory for use with natural gas. A complete propane (LP) burner is supplied for converting to propane gas. No option available for top T&P. See below for available roof jack kits. Atmospheric vent models are certified from sea level to 10,100 ft. elevation. Energy Saver Direct Vent Models 6-year tank/2-year parts limited warranty Direct Vent models are certified from sea level to 5,400 ft. elevation. No option available for Top T&P. See below for available Roof Jack Kits. BTU Input Per Hour Propane Gas Hi Cube Trailer Load Weight (lbs) Roof Jack Kits must be ordered separately with 30, 40, and 50-gallon Direct Vent models and must be in accordance with instructions furnished with the heater. No other Roof Jack Kits are approved for installation with this heater. Height Diameter Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 5 Draft Hood Outlet FMHR-30 30 0.63 36 35,500 32,000 61-1/2 18 3 or 4 0.47 129 $509 FMHR-40 40 0.62 36 35,500 32,000 61-3/4 20 3 or 4 0.60 153 538 Model Number Energy Recovery @ 90 F Rise Per Hour Btu Input Per Hour Natural Gas Btu Input Per Hour Propane Gas Height Diameter Draft Hood Outlet Hi Cube Trailer Load FMDV-30 30 0.63 31 30,000 29,000 61 18 3 0.39 129 $603 FMDV-40 40 0.62 33 32,000 29,000 61-3/4 20 3 0.60 153 679 FMDV-50 50 0.60 39 40,000 37,000 60 22 3 0.47 168 752 manufactured housing roof jack kits Kit Number Description 9002964005 12" (Non-adjustable) 10 $101 9002965005 32" (13"-32" adjustable) 13 122 9002966005 60" (32"-60" adjustable) 22 162.50 9002967005 95" (36"-95" adjustable 27 215

RESIDENTIAL GAS Non-Condensing Power Vent - Sidewall or Vertical 6-year tank/6-year parts limited warranty *ENERGY STAR Qualified Vents with PVC, CPVC, Polypropylene and ABS pipe Model Number Energy Recovery @ 90 F Rise Per Hour High Efficiency Non-Condensing Ultra-Low NOx Power Vent 6-year tank/6-year parts limited warranty All models are ENERGY STAR Qualified Flammable Vapor Ignition Resistant BTU Input Per Hour Natural Gas Height to Top of Blower Specify when ordering propane (LP) gas and add $40.00 to the price of each unit. No option available for Top T&P. Side connections are standard on GPVX models. Side connections available on GPVT models. Add "L" to model number (example: GPVT-40L). All models are certified from sea level to 10,100 ft. elevation. GPVX-75L is not ENERGY STAR Qualified. Flammable Vapor Ignition Resistant Diameter Vent Diameter Hi Cube Trailer Load Complies with SCAQMD Rule 1121 and other air quality management districts with similar requirements for NOx emissions of less than 10 ng/j. *GPVL-40 40 0.70 44.7 40,000 59 22 2, 3 or 4 1.00 174 $1,297 *GPVT-40 40 0.70 55.9 50,000 68-1/2 20 2, 3 or 4 1.00 176 1,309 *GPVL-50 50 0.70 44.7 40,000 60-1/8 24 2, 3 or 4 1.00 198 1,470 *GPVT-50 50 0.70 55.9 50,000 68-1/8 22 2, 3 or 4 1.00 192 1,483 *GPVX-50L 50 0.70 69.3 62,000 61-1/8 24 3 or 4 1.00 212 1,556 GPVX-75L 75 N/A 81.9 76,000 70-5/8 26 3 or 4 1.25 277 1,734 Model Number Energy No option available for Top T&P valve. Recovery @ 90 F Rise Per Hour Input BTU Per Hour Natural Gas Vent Outlet Height to Top of Vent Height to Top of Heater Height to T&P Diameter Hi Cube Trailer Load Weight (lbs) GPNH-40 40 0.68 42 42,000 2 or 3 66-7/8 58-5/8 51-1/2 20 1.23 170 $1,513 GPNH-50 50 0.68 42 42,000 2 or 3 65-5/8 57-7/16 51 22 1.28 207 1,564 6 ProMax Power Direct Vent 6-year tank/6-year parts limited warranty *ENERGY STAR Qualified Vents with PVC, CPVC, Polypropylene and ABS pipe Model Number Energy GPH Recovery @ 90 F Rise s Per Hour Input BTU Per Hour Natural Gas Vent Diameter Flammable Vapor Ignition Resistant Height to Top of Blower Height to Top of Tank Diameter Hi Cube Trailer Load *GPDL-40 40 0.71 45.2 40,000 2, 3 or 4 58-1/4 49-1/2 22 1.00 174 $1,499 *GPDT-50 50 0.70 50.3 45,000 2, 3 or 4 67-1/2 58-3/4 22 1.00 192 1,550 *GPDX-50L 50 0.71 72.6 62,000** 3 or 4 69 60-1/4 22 1.00 200 1,698 GPDX-75L 75 N/A 81.9 76,000 3 or 4 70-5/8 61-1/2 26 1.25 277 2,152 Side connections standard on GPDX-50L and GPDX-75L. Side connections available on GPDL-40 and GPDT-50. Add "L" to model number plus $10 to price. Specify when ordering propane (LP) gas and add $40.00 to the price of each unit. GPDX-75L is not ENERGY STAR Qualified. **Propane (LP) model has input of 58,000 BTU/hr. All models are certified from sea level to 10,100 ft. elevation. Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

ProMax Direct Vent 6-year tank/6-year parts limited warranty Flammable Vapor Ignition Resistant Model Number Energy Recovery @ 90 F Rise Per Hour Input BTU Natural Gas Height *Diameter Vent Outlet Hi Cube Trailer Load Weight (lbs) GDV-40 40 0.63 41 38,000 64 22 Co-Axial 1.00 178 1,347 GDV-50 50 0.62 43 40,000 73 22 Co-Axial 1.00 200 1,418 GDVT-50 50 0.61 51 47,000 74 22 Co-Axial 1.00 215 1,310 *Allow 29-1/2 for front to back dimension for gas control and air intake pipe at rear of heater. Specify when ordering propane (LP) gas and add $40.00 to the price of each unit. No option available for top T&P. All models certified from sea level to 7,700 ft. elevations. All models available with side loop fittings. Add "L" to suffix of model (example: GDV-40L). Add $10. RESIDENTIAL GAS ProMax Atmospheric Vent 6-year tank/6-year parts limited warranty Tall Models Energy Recovery @ 90 F Rise Per Hour BTU Input Per Hour Natural Gas Height Diameter Draft Hood Hi Cube Trailer Load GCB-30 30 0.63 36 35,500 61-1/2 16 3 or 4 0.39 123 $555 GCR-30 30 0.63 36 35,500 61-1/2 18 3 or 4 0.41 132 530 GCRH-40 40 0.62 36 35,500 61-3/4 20 3 or 4 0.54 138 457 GCB-40 40 0.62 41 40,000 61-3/4 18 3 or 4 0.54 130 482 GCR-40* 40 0.62 41 40,000 61-3/4 20 3 or 4 0.54 138 457 GCG-50* 50 0.60 41 40,000 60-3/4 21 3 or 4 0.57 148 513 GCR-50* 50 0.62 41 40,000 60-3/4 22 3 or 4 0.60 165 533 GCRT-50* 50 0.60 58 50,000 60-3/4 22 4 0.60 165 863 GCRX-50* 50 0.60 61 60,000 65-1/2 22 4 0.60 190 986 GCRX-55* 55 0.59 65 60,000 59-3/4 24 4 0.76 185 1002 Short Models GCBL-30 30 0.63 36 35,500 50 18 3 or 4 0.42 110 555 GCRL-30 30 0.63 36 35,500 50 20 3 or 4 0.50 118 530 GCBL-40 40 0.62 41 40,000 51-1/2 20 3 or 4 0.54 134 482 GCRL-40 40 0.62 41 40,000 51-1/2 22 3 or 4 0.54 135 457 GCRL-50 50 0.60 41 40,000 53-1/4 24 3 or 4 0.76 177 775 Water connection is 3/4 on all models. Models ship with supplied insulation blanket. For 10-year tank and 6-year parts limited warranty, change G to X in model number (example: XCR-30). Add $100. Specify when ordering propane (LP) gas and add $40.00 to the price of each unit. LP models not available on GCRH-40. *For optional side-mounted recirculating taps, add L to the suffix (example: GCR-40L). Add $10. All models approved for installation from sea level to 10,100 ft. elevation. Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 7

RESIDENTIAL GAS ProMax High Recovery Atmospheric Vent 75 & 100 6-year tank/6-year parts limited warranty Model Number Recovery @ 90 F Rise Per Hour ProMax Ultra-Low NOx 6-year tank/6-year parts limited warranty Flammable Vapor Ignition Resistant BTU Input Per Hour Natural Gas Complies with SCAQMD Rule 1121 and other air quality management districts with similar requirements for NOx emissions of less than 10 ng/j. Height Diameter Draft Hood Water connections are 1" male NPT on the FCG-75 and 1 1/4" on the FCG-100. For 10-year tank & 6-year parts limited warranty, change F to P in the model number, example PCG-75. Add $100. For optional side loop fittings add L to suffix of model number, example FCG-75L. Specify when ordering propane (LP) gas and add $40.00 to the price of each unit. All models certified from sea level to 7,700 ft. elevation. Hi Cube Trailer Load FCG-75 74 81 75,100 61 26-1/2 4 1.25 275 $1,193 FCG-100 98 81 75,100 68-1/2 27-3/4 4 1.25 350 2,262 Tall Models Energy Recovery @ 90 F Rise Per Hour BTU Input Per Hour Natural Gas Draft Hood Height Diameter Hi Cube Trailer Load Most models approved for installation from sea level to 7,700 ft. elevation. The exception is model GURT-50L which is approved to 5,400 ft. elevation. All models may be ordered from the factory with Top T&P valve as an option. Specify when ordering. *Side loop connections are standard on model GURT-50L. GUC-30 30 0.63 34 33,000 3 or 4 61-3/4 16 0.36 126 $1,022 GUC-40 40 0.62 41 40,000 3 or 4 62 18 0.39 125 1,053 GUR-40 40 0.63 41 40,000 3 or 4 62 20 0.54 125 1,053 GUC-50 50 0.60 42 40,000 3 or 4 60-3/4 20 0.54 148 1,109 GUR-50 50 0.62 42 40,000 3 or 4 60-3/4 22 0.60 148 1,151 GURT-50L* 50 0.60 51 50,000 4 64 22 0.60 177 1,222 Short Models GURL-40 40 0.62 41 40,000 3 or 4 51-1/2 22 0.54 138 1,105 ProMax Ultra-Low NOx High Recovery 6-year tank/6-year parts limited warranty Complies with SCAQMD Rule 1146.2 and other air quality management districts with similar requirements for NOx emissions of less than 14 ng/j. Recovery @ 90 F Rise Per Hour BTU Input Per Hour Natural Gas Vent Connection All models certified from sea level to 7,700 ft. elevations. *Recover rating based on 81% thermal efficiency. **Recover rating based on 80% thermal efficiency. The GCN-75 comes standard with side loop fittings for use with hydronic heating applications. No 120V power source required. Height Diameter Hi Cube Trailer Load GCN-75** 74 81 75,100 4 62-1/16 25-1/4 1.25 285 $1,631 GCN-100* 98 82 75,100 4 70-1/2 27-3/4 1.25 350 2,380 8 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

ProMax Ultra-Low NOx Direct Vent 6-year tank warranty/6-year parts limited warranty Flammable Vapor Ignition Resistant. Complies with the SCAQMD Rule 1121 and other air quality management districts with similar requirements for NOx emissions of less than 10 ng/j. Energy Recovery @ 90 F Rise Per Hour BTU Input Per Hour Concentric Vent Height Diameter Hi Cube Trailer Load GDNL-40L-100 40 0.62 39 36,000 3 and 5 65-1/4 22 1.67 179 $1,290 GDNT-50L-100 50 0.62 41 38,000 3 and 5 73-1/2 22 1.67 193 1,404 All model have 3/4" top water connections and come standard with side loop fittings. No option available for top T&P. All models certified from sea level to 7,700 ft. elevations. RESIDENTIAL GAS ProMax SL Circulating Heat Exchangers 1-year parts limited warranty Designed to compliment Promax SL Water Heaters. Provides an isolated source of hot water for radiant floor heating, hydronic air handlers and other closed loop applications. Part Number Description Approximate RXLS 28* 28,000 Nominal BTU Single Wall External Heat Exchanger 20 $615 RXLS 52* 52,000 Nominal BTU Single Wall External Heat Exchanger 25 770 RXLD 28* 28,000 Nominal BTU Double Wall (Vented) External Heat Exchanger 50 1,078 RXLD 52* 52,000 Nominal BTU Double Wall (Vented) External Heat Exchanger 80 1,233 *Designed to use with models ordered with SL (Side Loop) models. Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 9

RESIDENTIAL GAS Tankless Non-Condensing Concentric Vent 15-year limited heat exchanger warranty/5-year parts limited warranty++ Power Direct Vent Design Using APNC35 Concentric Vent System Field Convertible from Natural Gas to Propane * Type Gas Consumption Input Minimum BTU/H Maximum BTU/H Energy Complies with SCAQMD Rule 1146.2 and other air quality management districts with similar requirements for NOx emissions of less than 14 ng/j or 20 ppm Hot Water Output (GPM) Maximum** 45 F Rise 70 F Rise *Configured for natural gas out of the box. Field convertible to Propane with supplied conversion kit. **Current Numbers based on factory testing; 0.5 gpm required for activation; 0.4 gpm required for continuous fire after initial ignition. ***Suitable for Commercial Applications. +Internet Minimum Advertised (IMAP). ++Refer to product installation manual for specific warranty information. Weight (lbs) IMAP+ List ATI-110C-N Indoor 15,000 140,000 0.82 6.6 5.1 3.3 55 $1,011 $1,160 ATI-310C-N Indoor 15,000 190,000 0.82 8.0 6.9 4.4 55 1,256 1,460 ATI-510C-N*** Indoor 15,000 199,000 0.82 10.0 7.2 4.7 55 1,528 1,700 CONCENTRIC VENTING COMPONENTS Part Number Description IMAP+ List 100266115 11.5 Standard Sidewall Kit $91 $110 100266117 21 Standard Sidewall Kit 96 117 100266118 38 Roof termination 116 135 100266119 45 degree elbow 29 36 100266132 90 degree elbow 42 47 100266133 10 Straight pipe 33 37 100266134 19.5 Straight pipe 46 53 100266135 39 Straight pipe 51 58 100266187 Flat roof flashing 32 36 100266136 Tile/Shingle roof flashing 1/12 to 6/12 pitch 57 62 100266137 Tile/Shingle roof flashing 8/12 to 16/12 pitch 57 62 100266138 Tile/Shingle roof flashing 6/12 to 12/12 pitch 57 62 100266139 Condensate trap 38 42 100266140 Condensate collector 52 65 100266141 Pipe hangers 6 7 +Internet Minimum Advertised (IMAP) Tankless Non-Condensing 15-year limited heat exchanger warranty/5-year parts limited warranty++ Power Vent Design Category III Stainless Steel Venting * Type Gas Consumption Input Minimum BTU/H Maximum BTU/H Energy Hot Water Output (GPM) Maximum** 45 F Rise 70 F Rise Weight (lbs) IMAP+ List ATI-110-N Indoor 19,500 140,000 0.82 6.6 5.1 3.3 38 $819 $1,024 ATO-110-N Outdoor 19,500 140,000 0.82 6.6 5.1 3.3 38 819 1,024 ATI-310-N Indoor 11,000 190,000 0.82 8.0 6.9 4.4 43 1,064 1,330 ATO-310-N Outdoor 11,000 190,000 0.82 8.0 6.9 4.4 43 1,072 1,340 ATI-510-N*** Indoor 11,000 199,000 0.82 10.0 7.2 4.7 45 1,336 1,670 ATO-510-N*** Outdoor 11,000 199,000 0.82 10.0 7.2 4.7 45 1,312 1,640 *For Propane, change the N to P in the model number when ordering. Example: ATI-110-P. **Current numbers based on factory testing; 0.5 GPM required for activation; 0.4 GPM required for continuous fire after initial ignition. ***Suitable for commercial applications. +Internet Minimum Advertised (IMAP). ++Refer to product installation manual for specific warranty information. 10 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Tankless Non-Condensing Ultra-Low NOx 15-year limited heat exchanger warranty/5-year parts limited warranty++ Power Vent Design Using Category III Stainless Steel Venting Field Convertible from Natural Gas to Propane * Type Gas Consumption Input Minimum BTU/H Maximum BTU/H Energy Complies with SCAQMD Rule 1146.2 and other air quality management districts with similar requirements for NOx emissions of less than 14 ng/j or 20 ppm Hot Water Output (GPM) Maximum** 45 F Rise 70 F Rise ATO-310U 200 Outdoor 15,000 190,000 0.82 8.0 6.9 4.4 38 1,256 1,460 ATI-510U 200*** Indoor 15,000 199,000 0.82 10.0 7.2 4.7 40 1,528 1,700 ATO-510U 200*** Outdoor 15,000 199,000 0.82 10.0 7.2 4.7 40 1,528 1,700 *Configured for natural gas out of the box. Field convertible to Propane with supplied conversion kit. **Current Numbers based on factory testing; 0.5 GPM required for activation; 0.4 GPM required for continuous fire after initial ignition. ***Suitable for Commercial Applications. +Internet Minimum Advertised (IMAP). ++Refer to product installation manual for specific warranty information. IMAP+ List ATI-110U 200 Indoor 15,000 140,000 0.82 6.6 5.1 3.3 38 $1,011 $1,060 ATO-110U 200 Outdoor 15,000 140,000 0.82 6.6 5.1 3.3 38 925 970 ATI-310U 200 Indoor 15,000 190,000 0.82 8.0 6.9 4.4 38 1,256 1,460 RESIDENTIAL GAS Tankless Condensing High Efficiency 15-year limited heat exchanger/5-year parts limited warranty++ ENERGY STAR Qualified Power Vent Design vents in PVC, CPVC or ABS (intake and exhaust solid core only) * Type Gas Consumption Input Minimum BTU/H Maximum BTU/H Energy (EF) Complies with SCAQMD Rule 1146.2 and other air quality management districts with similar requirements for NOx emissions of less than 14 ng/j or 20 ppm Hot Water Output (GPM) Maximum** 45 F Rise 70 F Rise *For Propane, change the N to P in the model number when ordering. Example: ATI-240H-P. **Current Numbers based on factory testing; 0.5 GPM required for activation; 0.4 GPM required for continuous fire after initial ignition. ***Suitable for Commercial Applications. Propane (LP) Gas BTU/H is 13,000. +Internet Minimum Advertised (IMAP). ++Refer to product installation manual for specific warranty information. IMAP+ List ATI-140H-N Indoor 15,000 120,000 0.93 6.6 5.0 3.2 50 $1,086 $1,358 ATO-140H-N Outdoor 15,000 120,000 0.93 6.6 5.0 3.2 50 1,086 1,358 ATI-240H-N Indoor 15,000 160,000 0.95 6.6 6.6 4.3 62 1,248 1,560 ATO-240H-N Outdoor 15,000 160,000 0.95 6.6 6.6 4.3 62 1,248 1,560 ATI-340H-N Indoor 15,000 180,000 0.95 8.0 7.6 4.9 62 1,408 1,760 ATO-340H-N Outdoor 15,000 180,000 0.95 8.0 7.6 4.9 62 1,408 1,760 ATI-540H-N*** Indoor 15,000 199,000 0.95 10.0 8.4 5.4 63 1,568 1,960 ATO-540H-N*** Outdoor 15,000 199,000 0.95 10.0 8.4 5.4 63 1,568 1,960 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 11

RESIDENTIAL GAS TANKLESS VENTING +Internet Minimum Advertised (IMAP). ATI-110/U ATO-310/U ATI-510/U ATO-510/U ATI-140H ATO-140H ATI-240H ATO-240H ATI-340H ATO-340H ATI-540H ATO-110/U ATI-310/U ATO-540H ATIO-910(-A) Part Number Description IMAP+ List 9008142005 3" Air intake hood X X X $20 $25 9008180005 5" Air intake hood X 29 36 9007987005 4" Straight pipe (6" length) X X X 15 19 9008181005 5" Straight pipe (6" length) X 24 30 9007986005 4" Straight pipe (12" length) X X X 19 24 9008182005 5" Straight pipe (12" length) X 26 33 9007984005 4" Straight pipe (24" length) X X X 29 36 9008183005 5" Straight pipe (24" length) X 40 50 9007983005 4" Straight pipe (36" length) X X X 40 50 9008184005 5" Straight pipe (36" length) X 56 70 9007982005 4" Straight pipe (48" length) X X X 54 68 9008185005 5" Straight pipe (48" length) X 72 90 9007985005 4" Adjustable straight (7"- 9.9") X X X 31 39 9008186005 5" Adjustable straight (7"- 9.9") X 45 56 9007981005 4" 45 degree elbow X X X 36 45 9008187005 5" 45 degree elbow X 53 66 9007980005 4" 90 degree elbow X X X 42 52 9008188005 5" 90 degree elbow X 61 76 9008345005 4" Wall thimble (4"-7") X X X 56 70 9008347005 5" Wall thimble (4"-7") X 56 70 9008346005 4" Wall thimble (5"-10") X X X 60 75 9008348005 5" Wall thimble (5"-10") X 56 75 9007994005 4" Horizontal drain pipe X X X 22 28 9008191005 5" Horizontal drain pipe X 40 50 9007993005 4" Vertical drain pipe (M-F) X X X 26 33 9008192005 5" Vertical drain pipe (M-F) X 40 50 9007990005 4" Storm collar X X X 18 22 9008193005 5" Storm collar X 40 50 9007988005 4" Firestop X X X 45 56 9008194005 5" Firestop X 19 24 9007992005 4" Flat roof flashing X X X 24 30 9008195005 5" Flat roof flashing X 42 52 9007991005 4" Angled roof flashing X X X 40 50 9008196005 5" Angled roof flashing X 42 52 9007999005 4" Termination hood X X X 72 90 9008197005 5" Termination hood X 96 120 9008004005 4" Termination hood w/ thimble (4"-7") X X X 93 116 9008005005 4" Termination hood w/ thimble (5"-10") X X X 128 160 9008144005 4" Termination tee X X X 56 70 9008198005 5" Termination tee X 80 100 9007995005 4" Rain cap X X X 42 52 9008145005 4" Extreme weather rain cap X X X 72 90 9008200005 5" Extreme weather rain cap X 72 90 9008146005 9008201005 4" Universal appliance adaptor - 3-in-1 (F-F adaptor, condensate drain, & back-flow preventer) 5" Universal appliance adaptor - 3-in-1 (F-F adaptor, condensate drain, & back-flow preventer X X X 109 110 X 104 130 9007996005 4" Back-flow preventer & F-F adaptor X X X 35 44 9008202005 5" Back-flow preventer & F-F adaptor X 48 60 9007979005 4" F-F adaptor X X X 30 37 9008203005 5" F-F adaptor X 40 50 9007989005 4" Support strap (1") X X X 24 30 9008204005 5" Support strap (1") X 32 40 12 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

TANKLESS VENTING KITS (REFER TO PRODUCT GUIDE FOR KIT COMPONENTS) **Not for use with Ultra-Low NOx Series 200 models. +Internet Minimum Advertised (IMAP). *Compatible with Ultra-Low NOx models only. c = Cooler Climate w = Warmer Climate. ATI-110/U ATO-110/U ATI-310/U ATI-510/U ATO-510/U ATI-140H ATO-310/U ATO-140H ATI-240H ATO-240H ATI-340H ATO-340H ATI-540H ATO-540H ATIO-910(-A) Part Number Description IMAP+ List 9008339005 4" Combustible Sidewall Termination x x x $116 $145 9008481005 4" Non-Combustible Sidewall Termination x x x 100 125 9008489005 4" Combustible Sidewall Termination (With Condensate Trap) x x x 132 165 9008490005 4" Non-Combustible Sidewall Termination (With Condensate Trap) x x x 116 145 9008001005 3" x 4" Direct Vent, Concentric Sidewall Termination (5" to 10") x x x 152 190 9008000005 3" x 4" Direct Vent, Concentric Sidewall Termination (12" to 18") x x x 160 200 9008210005 5" x 5" Direct Vent, Concentric Sidewall Termination (5" to 10") x 400 500 9008205005 5" x 5" Direct Vent, Concentric Sidewall Termination (12" to 18") x 432 540 9008340005 4" Rooftop Termination (Flat Roof) x x x 280 350 9008341005 4" Rooftop Termination (Angled Roof) x x x 280 350 9008342005 5" Combustible Sidewall Termination x 224 280 9008482005 5" Non-Combustible Sidewall Termination x 176 220 9008491005 5" Combustible Sidewall Termination (with Condensate Trap) x 248 310 9008492005 5" Non-Combustible Sidewall Termination (with Condensate Trap) x 224 280 9008900005 4" Combustible Sidewall Termination (Adjustable) x x x 125 156 9008898005 Thimble for Kit 9008900005 x x x 48 60 9008899005 Vent Pipe for Kit 9008900005 x x x 77 96 9008343005 5" Rooftop Termination (Flat Roof) x 360 450 9008344005 5" Rooftop Termination (Angled Roof) x 360 450 Accessories 9007677005 Outdoor Vent Cap x 216 270 9007667005 Direct Vent Conversion Kit x** x** x** 56 70 9007669005 Direct Vent Conversion Kit x 110 138 100266729 Recess Box - Standard x x x x 200 250 100266730 Recess Box - Flange x x x x 200 250 9007671005 Pipe Cover x x 78 98 9007670005 Pipe Cover x* x* x x x x 78 98 9007673005 Pipe Cover x 166 208 9008331005 Pipe Cover x x x x x x 94 118 9008953005 Pipe Cover x x 94 118 9008300005 Multiple Unit Controller x* x* x x x 944 1,180 9007666005 Remote Temperature Controller (Not compatible with the Ultra-Low NOx models) x x x x 104 130 9007603005 Remote Temperature Controller (Not compatible with the Ultra-Low NOx models) x x x 136 170 9008172005 Commercial Remote Temperature Controller x* x* x x 136 170 9009069005 Residential Remote Temperature Controller x* x* x* x* x* x* x x x x x x x x 129 161 9007604005 Isolation Valves (Lead Free) x x x x x x x x x x x x x x 96 120 9007780005 Isolation Valves (Lead Free) x 192 240 9007607005 Neutralizer x x x x x x x x 48 60 9008846005 PVC Adapter for Common Venting x x x 51 64 9008847005 Non-Return Valve for Common Venting x x x 256 320 9007611005 Concentric PVC termination x x x x 88 110 9008871005 Product Preservers LG1.5L w w w w w w c/w 538 672 9008876005 LG1.5L Replacement Cartridge 360 450 9008877005 Product Preservers SM1.0L Anti-Scale System c/w c/w c/w c/w c c c/w c/w c/w c/w c c c c 374 468 RESIDENTIAL GAS Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 13

RESIDENTIAL HYBRID ELECTRIC Voltex High Efficiency Hybrid Electric Heat Pump Water Heater 10-year tank/10-year parts limited warranty ENERGY STAR qualified Model Number Requires 30 amp breaker. Top T&P option not available on these models. Northern Climate Tier 3 qualified Voltex High Efficiency Hybrid Electric Heat Pump Water Heater 6-year tank/6-year parts limited warranty ENERGY STAR qualified Energy by Mode Standard Number Standard Dimensions in Voltage of Input (kw) Inches Efficiency Hybrid Electric Elements Upper/Lower Height Diameter Hi Cube Load Weight (lbs) HPTU-50N 50 3.61 3.24 0.93 208/240 2 4500/4500 63 22 1.52 196 $849 HPTU-66N 66 3.44 3.17 0.92 208/240 2 4500/4500 61 27 1.59 289 1,078 HPTU-80N 80 3.27 3.06 0.92 208/240 2 4500/4500 69 27 1.59 307 1,310 Model Number Requires 30 amp breaker. Top T&P option not available on these models. Energy by Mode Standard Number Standard Dimensions in Voltage of Input (kw) Inches Efficiency Hybrid Electric Elements Upper/Lower Height Diameter Hi Cube Trailer Load Weight (lbs.) FPTU-50 50 3.61 3.24 0.93 208/240 2 4500/4500 63 22 1.52 196 $749 FPTU-66 66 3.44 3.17 0.92 208/240 2 4500/4500 61 27 1.59 289 899 FPTU-80 80 3.27 3.06 0.92 208/240 2 4500/4500 69 27 1.59 307 1,210 Heat Pump Water Heater Air Duct Adapter Kits (with all HPTU, FPTU, FHPT, and SHPT models) Duct adaptor kits can be used to redirect inlet and/or outlet air from or to other locations to permit installation in confined spaces, improve performance and maintain comfort in occupied areas of the home. Engineered solution ensures optimal performance Allows confined space installation - no minimum space requirement if inlet and outlet are ducted Redirect outlet air to alternate location for confined space installations or greater comfort Draw inlet air from alternate location for confined space installations Single kit contains both inlet and outlet adapters Maximum length of duct is 10 feet - total length for one or both kits Uses standard 8 inch flexible duct (field supplied) to redirect inlet and/or outlet air With optional duct booster fan, the maximum length of duct increases to 25 feet total length inlet and/or outlet Part Number Description 9910130000 Inlet and Outlet Air Duct Kit 5 $150 9910057000 Duct Booster Fan Kit 10 239 See the Duct Kit Installation Instructions and heat pump water heater Instruction Manual for complete installation instructions and requirements. Inlet Adaptor Outlet Adaptor 14 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Voltex 80- Hybrid Electric Heat Pump Water Heater 6-year tank/6-year parts limited warranty ENERGY STAR qualified Model Number Energy by Mode Standard Number Standard Voltage of Input (kw) Efficiency Hybrid Electric Elements Upper/ Height Diameter Lower Heat Pump Water Heater Air Duct Adapter Kits (For use only with HHPT-80 Model) Duct adaptor kits can be used to redirect inlet and/or outlet air from or to other locations to permit installation in confined spaces, improve performance and maintain comfort in occupied areas of the home. Engineered solution ensures optimal performance Allows confined space installation in areas as small as 8 x 4 x 4 (128 cubic feet) Redirect outlet air to alternate location for confined space installations Draw inlet air from alternate location for confined space installations Redirect cold outlet air to another location for greater comfort Hi Cube Trailer Load Weight (lbs.) HHPT-80 80 2.3 2.33 0.85 240 2 4500/2000 81-1/2 24-1/2 1.75 340 $1,199 Requires 30 amp breaker. Top T&P option not available on these models. One or both kits can be used to redirect air flow to the water heater Maximum length of duct is 10 feet - total length for one or both kits Uses standard 8 inch flexible duct (field supplied) to redirect inlet or outlet air With optional duct booster fan, the maximum length of duct increases to 25 feet total length inlet and/or outlet RESIDENTIAL HYBRID ELECTRIC Part Number Description 9910005000 Inlet Air Duct Kit 5.46 $75 9910006000 Outlet Air Duct Kit 5.35 75 9910057000 Duct Booster Fan Kit 10 239 See the Duct Kit Installation Instructions and heat pump water heater Instruction Manual for complete installation instructions and requirements. Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 15

Conservationist 10-year tank/10-year parts limited warranty RESIDENTIAL ELECTRIC Electronic user interface Tall Models Energy Element Wattage 240V Standard Maximum Diameter Height Hi Cube Trailer Load PXNT-40 40 0.95 5500 5500 20 60-1/4 0.86 118 $607 PXNT-50 50 0.95 5500 5500 22 60-1/2 1.09 134 601 PXNT-55 55 0.94 5500 5500 24 56-1/2 1.39 145 765 Short Models PXNS-40 40 0.95 5500 5500 20-1/2 50 0.60 109 607 PXNS-50 50 0.95 5500 5500 23 49-3/4 0.76 161 601 Only available for 240V or 208V applications. Equipped as dual element only; no single element configurations available. Top T&P option not available on these models. Communications-ready 16 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Promax 6-year tank/6-year parts limited warranty Tall Models Energy Element Wattage 240V Standard Maximum Diameter Height Hi Cube Trailer Load * Models ship with supplied insulation blanket. For 10-year tank and 6-year parts warranty, change "E" to "P" in the model number (example: ENT-30 becomes PNT-30). Add $100. 3/4 water connections on 8 center only available for 240V or 208V applications. ENT-30 30 0.95 4500 6000 19 46-1/2 0.43 95 $509 ENT-40 40 0.95 4500 6000 20 60-1/4 0.86 118 423 ENT-50 50 0.95 4500 6000 20-1/2 60-1/2 1.09 134 417 ENT-55 55 0.94 4500 6000 24 56-1/2 1.39 145 582 Short Models ENSB-30* 30 0.95 4500 6000 20 39 0.54 95 $534 ENS-30 30 0.95 4500 6000 22 39-3/4 0.54 94 509 ENS-40 40 0.95 4500 6000 20-1/2 50 0.60 109 423 ENS-50 50 0.95 4500 6000 23 49-3/4 0.76 161 417 Lowboy Top Connect Models ENL-20 19.5 N/A 4500 6000 20 30 0.29 65 $468 ENL-30 28 0.95 4500 6000 24 31-1/4 0.49 115 557 ENLB-30 * 28 0.95 4500 6000 20 30 0.40 96 582 ENL-40 + 38 0.95 4500 6000 26 33-1/2 0.54 118 608 ENLB-40 * 38 0.95 4500 6000 24 31-3/4 0.49 118 633 ENLB-50 * 48 0.95 4500 6000 26-1/2 34 0.54 172 683 RESIDENTIAL ELECTRIC Promax Specialty 6-year tank/6-year parts limited warranty Energy COMPACT MODELS 120V 240V *Models ship with supplied insulation blanket. Element Wattage Number of Standard Maximum Elements Diameter Height Hi Cube Trailer Load EJC-6 6 N/A 1650 3000 1 14-1/4 15-1/4 0.01 35 $211 EJC-10 10 N/A 1650 6000 1 16 18-1/4 0.01 41 300 EJCS-20 19 N/A 2500 6000 1 18 24-3/4 0.10 68 322 EJCT-20 19.9 N/A 2500 6000 1 16 31-5/8 0.15 68 360 LOWBOY SIDE-CONNECT MODEL 240V ENJ-30 28 0.95 4500 6000 2 24 31-1/4 0.49 115 $588 ENJB-30* 28 0.95 4500 6000 2 22 30 0.40 101 613 ENJ-40 38 0.95 4500 6000 2 26 33-1/2 0.54 118 639 ENJB-40* 38 0.95 4500 6000 2 24 31-3/4 0.49 118 664 TABLE TOP MODEL 240V ENTT-38 38 0.88 4500 5500 2 24 x 25 36 0.69 150 $720 POINT-OF-USE MODELS 120V EJC-2 2.5 N/A 1500 1500 1 11 13-3/4 0.01 20 $201 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 17

RESIDENTIAL ELECTRIC Mobile Home 6-year tank/6-year parts limited warranty Comply with HUD standards for mobile homes/manufactured housing Energy Standard Voltage Upper Element Lower Element * Models ship with supplied insulation blanket. MHE6 models may have limited element options due to element size or other restrictions. Top T&P option not available on these models. Diameter Height Hi Cube Trailer Load Weight (lbs) MHE6-30H-030D 30 0.95 120 3000 3000 19 46-3/4 0.43 98 $435 MHE6-30H-035D 30 0.95 240 3500 3500 19 46-3/4 0.43 98 435 MHE6-40R-030D 40 0.95 120 3000 3000 22 50 0.60 109 473 MHE6-40R-035D 40 0.95 240 3500 3500 22 50 0.60 109 473 MHE6-30L-030D* 28 0.95 120 3000 3000 22 30 0.40 96 435 MHE6-30L-035D* 28 0.95 240 3500 3500 22 30 0.40 96 435 KW INPUT AVAILABILITY Residential electric water heaters are shipped with the standard voltage and kw inputs shown unless otherwise specified when ordering. The chart below shows available inputs (in kw) for residential electric water heaters. Models & elements Voltage Wiring kw Input Available 120V - 1.5 1.65 2 2.5 *3 6- Models Single-Element 208V - 1 1.5 2 2.5 *3 240V - *1 1.5 2 2.5 3 277V - *1.5 2 2.5 *3 480V - 2 2.5 *3 120V - 1.5 1.65 2 2.5 3 10- through 20- Models Single-Element 208V - 1 1.5 2 2.5 3 3.5 3.8 4 4.5 *5 5.5 240V - *1 1.5 2 2.5 3 3.5 3.8 *4 4.5 5 5.5 6 277V - 1.5 2 2.5 3 4 4.5 *5 *6 480V - 2 2.5 3 *4 4.5 *5 *5.5 *6 30- through 55- Models Double-Element 120V 208V 240V 277V* 480V Interlock 1.5 1.65 2 2.5 3 Simultaneous 3 3.3 4 5 Interlock 1 1.5 2 2.5 3 3.5 3.8 4 4.5 **5 5.5 Simultaneous 2 3 4 5 6 7 7.6 8 9 **10 Interlock *1 1.5 2 2.5 3 3.5 3.8 **4 4.5 5 5.5 6 Simultaneous *2 3 4 5 6 7 7.6 **8 9 10 11 Interlock 1.5 2 2.5 3 4 4.5 **5 **6 Simultaneous 3 4 5 6 8 9 **10 **12 Interlock 2 2.5 3 **4 4.5 **5 **5.5 **6 Simultaneous 4 5 6 **8 9 **10 **11 **12 * Ahead of wattage indicates, Not Available with Incoloy elements (copper elements only) ** Ahead of wattage indicates 30-gallon mobile home and 30 & 40 gallon tall models, Not Available with Incoloy elements Circuit Types C2 Circuit 2 wire lead, single element models only A6 Circuit 2 wire lead, double element models, single phase interlocking A9 Circuit 3 wire lead double element models, 3-phase unbalanced or off peak (can be wired single phase) not available 120v or 277v P4 Circuit 4 wire double element models simultaneous operation (can be wired 3-phase simultaneous or single phase simultaneous) Caution should be taken when ordering P4 Circuit (simultaneous operation) to ensure breaker amperage is sufficient for increased amp pull. Note: Circuit types listed above DO NOT APPLY TO ELECTRONIC THERMOSTAT MODELS and these models are only available with 240v 4500w or 240v 5500. Heat Pump and Solar Booster models are excluded from this table. 18 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

ORDERING INFORMATION FOR RESIDENTIAL ELECTRIC WATER HEATERS Promax double element models are supplied as standard with an Incoloy stainless steel lower element and a copper upper element with a 2-wire non-simultaneous (A-6) circuit. Both elements are 240 Volt, 4,500 Watt elements. Any other optional voltage and wattage combinations ordered will be shipped with dual copper elements unless double Incoloy elements are ordered An $8.00 up charge will apply for upgrading to Incoloy element(s) There is no price deduct when ordering a single lower element An $8.00 up charge will apply to a 3-wire Circuit A $10.00 up-charge will apply to a 4-wire Circuit Contact us for availability of other voltage and wattage elements For single element Incoloy heaters there is no upcharge Promax Compact Models are equipped with a single copper element in the voltage and KW rating shown. ORDERING INFORMATION Contact us for availability of other voltage and wattage elements An $8.00 up-charge will apply for upgrading to an Incoloy element Conservationist Models are equipped with an electronic thermostat and digital user interface and dual 240 Volt 5,500 watt Incoloy elements as standard. Optional 4,500 watt 240 Volt elements may be ordered at no charge Also available in 208 Volt contact us for available wattages Other Notes: All models comply with HUD regulations All standard Residential Electric models 30-gallon or larger are shipped with a standard side mounted T&P valve installed Residential electric models available with the optional top T&P are shipped with the T&P valve supplied in the box and not factory installed (except in some cases where NC code applies) Residential electric thermostats are factory set to 120 F Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement T&P valves designated as supplied or installed by exact model is subject to change Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 19

RESIDENTIAL WARRANTY RESIDENTIAL EXTENDED WARRANTY We offer four different warranty kits that enable licensed plumbing contractors to extend the limited warranty of the tank only on eligible water heaters a Stage I (2-year) kit that extends a 6-year model tank warranty to a 8-year tank warranty and three other 4-year extension kits that extend the limited warranty of the tank only on eligible 6-year warranty models from a 6-year tank warranty to a 10-year tank warranty. Parts warranties are NOT extended with any of these kits. Extended Warranty Kits must be installed within 30 days of the water heater installation date. The below tables show the eligible models for specific extended warranty kits. THE FOLLOWING A. O. SMITH MODELS ARE ELIGIBLE: STAGE I GAS MODELS 2-YEAR & 4-YEAR GCB-30 GCR-30 GCBL-30 GCRL-30 GCB-40 GCR-40 GCBL-40 GCRL-40 GCRH-40 GCRT-40 GCG-50 GCR-50 GCRT-50 GCRX-50 GCRL-50 GCRX-55 STAGE I ELECTRIC MODELS 2-YEAR & 4-YEAR ENT-30 ENS-40 ENL-30 ENT-40 ENSB-30 ENLB-30 ENT-50 ENS-30 ENS-50 ENLB-40 ENT-55 ENL-40 STAGE II GAS MODELS GDV-40 GDV-50 GDVT-50 GPVL-40 GPVL-50 GPVT-40 GPVT-50 GPVX-50L GPVX-75L GPDL-40 GPDT-50 GPDX-50L GPDX-75L GUC-30 GUC-40 GUC-50 GURL-40 GUR-40 GUR-50 GURT-50 GCF-40 GCF-50 GCFL-40 GCFL-50 STAGE III GAS MODELS GAHH-40 GAHH-50 NOTE: 1. Side-loop and LP Gas model derivatives for the above models are eligible for warranty extensions. 2. The 10-Year warranty kits cannot be used with Top T&P Models. Part Number Description 9004328105 Stage I (2-Year) Warranty Extension Kit 0.5 $39 9004329105 Stage I (4-Year) Warranty Extension Kit 2 89.50 9006480105 Stage II (4-Year) Warranty Extension Kit 2 140.50 9007691105 Stage III (4-Year) Warranty Extension 0.5 140.50 20 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Cirrex Solar Electric System Packages 10-year collector/2-year pump station/1-year parts limited warranty Solar booster tanks are ordered separately All systems are SRCC Certified OG-300 PLACING SOLAR SYSTEM ORDERS All collectors are SRCC Certified OG-100 Cirrex system packages are ENERGY STAR Qualified 1. Use the Solar Sizing Guide to determine the number of solar collectors and the solar booster tank required. 2. Order a system package from the Standard or Deluxe Solar System Package tables that meets the sizing needs making sure double wall heat exchanger systems are ordered when required by local building codes. 3. Order the required solar booster tank separately to complete the system order. RESIDENTIAL SOLAR DELUXE VS STANDARD - INCLUDED SYSTEM COMPONENTS System Component Description Standard Deluxe Solar Collector(s) X X Integrated Solar Pump Station With Advanced Programmable Digital LCD Controller X X Solar Loop Expansion Tank (Includes Bracket/Stainless Steel Flex Pipe) X X Solar Loop Pressure Relief Valve X X Thermostatic Mixing Valve X X Propylene Glycol (DOWFROST ) 5-s X X Solar Loop Air Vent X X Temperature Sensors (2) Tank & Collector Outlet X X Collector Spanner Mounting Hardware Kit (Stainless Steel/Aluminum) X X Roof Flashing for solar loop piping supply line (1 copper) X Roof Flashing for solar loop piping return line and sensor wire (1 - copper) X Roof Flashing Kit (Shingle Roof Mounting Kit) - 4 Per/Collector (iodized aluminum) X Temperature Sensor Control Wire 75' Roll X Collector Copper Sweat Fittings Kit X Flexible Pipe Insulation (UV Resistant/300 F) 6' x 1/2" tube (1) X Flexible Pipe Insulation (UV Resistant/300 F) 6' x 1" tube (1) X Tape, Stretch & Seal X Roof & Flashing Sealant X Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 21

RESIDENTIAL SOLAR Deluxe Solar System Packages s Do Not Include Solar Tanks Standard Solar System Packages Number of Collectors Number of Collectors Collector Size (ft) SACI-01-M200501-000 1 4' x 10' SACI-02-M200402-000 2 4' x 8' SACE-01-M100501-000 1 4' x 10' SACE-02-M100402-000 2 4' x 8' Collector Size (ft) SACI-01-M200501-T41 1 4' x 10' SACI-02-M200402-T41 2 4' x 8' SACE-01-M100501-T41 1 4' x 10' SACE-02-M100402-T41 2 4' x 8' Heat Exchanger Type Single Wall Internal Coil Single Wall Internal Coil Double Wall External Plate Double Wall External Plate Heat Exchanger Type Single Wall Internal Coil Single Wall Internal Coil Double Wall External Plate Double Wall External Plate Solar Booster Tank Ordered Separately SUNX-80 or SUNX-120 SUNX-80 or SUNX-120 SUN-80 or SUN-120 SUN-80 or SUN-120 Solar Booster Tank Ordered Separately SUNX-80 or SUNX-120 SUNX-80 or SUNX-120 SUN-80 or SUN-120 SUN-80 or SUN-120 Solar Energy / ENERGY STAR Qualified 80- Tank Solar Energy / ENERGY STAR Qualified 80- Tank 120- Tank 120- Tank Hi Cube Trailer Load Hi Cube Trailer Load 2.2 / Yes 1.9 / Yes 12.5 564 $4,792 5.3 / Yes 3.3 / Yes 8.33 586 5,549 1.8 / Yes 1.7 / No 12.5 590 5,402 3.0 / Yes 2.8 / Yes 8.33 614 6,682 2.2 / Yes 1.9 / Yes 12.5 556 $4,185 5.3 / Yes 3.3 / Yes 8.33 578 4,939 1.8 / Yes 1.7 / No 12.50 582 4,866 3.0 / Yes 2.8 / Yes 8.33 606 6,188 DELUXE & STANDARD SOLAR SYSTEM PACKAGES 1. s do not include the required solar booster tank. Solar booster tanks are ordered separately. 2. SACI systems require a SUNX-80 or SUNX-120 indirect solar booster tank as determined from the Sizing Guide. 3. SACE systems require a SUN-80 or SUN-120 direct solar booster tank as determined from the Sizing Guide. 4. These are closed loop systems that utilize a mixture of non-toxic propylene glycol and distilled water in the solar loop. Check local building codes for single wall or double wall heat exchanger requirements. Order SACE systems if double wall heat exchangers are required. DELUXE SOLAR SYSTEM PACKAGES 1. Deluxe packages include everything needed to complete the installation except for the piping and pipe insulation installed between the collectors, solar booster tank and the pump station. See the Deluxe vs. Standard comparison table. STANDARD SOLAR SYSTEM PACKAGES 1. Standard packages do not include all the components in the Deluxe packages. See the Deluxe vs. Standard comparison table. 2. Roof flashings are not included with Standard Solar System packages. 3. Roof flashings for the solar collector mounting hardware should be installed with solar collectors on composite roof installations to maintain roof integrity and homeowner warranty. Supplemental Shingle Roof Mounting Kits are available for composite roof installations, part number 9910026000 and may be ordered separately, one kit per collector is required. 4. Roof flashings for the solar loop supply and return piping and the temperature sensor wiring should be installed on all installations to maintain roof integrity and homeowner warranty. Roof flashings for the solar loop piping and sensor wire are available and may be ordered separately. See part numbers 9910049000 and 9910050000 in the Miscellaneous Items table on page 22. 22 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Indirect Solar Booster Tanks 6-year tank 6-year limited parts warranty Single wall internal coil-type heat exchanger Model Number Heat Exchanger Included Heating Elements (240 VAC Single Phase) Direct Solar Booster Tanks 6-year tank 6-year limited parts warranty Suitable for open loop systems or closed loop systems using an external heat exchanger Recovery @ 90 F Rise Per Hour Suitable for closed loop active solar systems Dimensions (Inches) Hi Cube Trailer Load SUNX-80 76 Yes 1 upper - 4500W 21 63-1/4 x 24 1.33 257 $1,682 SUNX-120 108 Yes 1 upper - 4500W 21 63-1/4 x 28 1.59 365 2,431 RESIDENTIAL SOLAR Model Number Heat Exchanger Included Note: Solar booster tanks are not included with Deluxe and Standard Solar System packages and must be ordered separately. Solar Thermal Collectors 10-year collector limited warranty All collectors are SRCC certified OG-100 Heating Elements (240 VAC Single Phase) Recovery @ 90 F Rise Per Hour Dimensions (Inches) Hi Cube Trailer Load SUN-65 65 No 1 upper - 4500W 21 59-1/4 x 20-1/2 1.33 152 $905 SUN-80 80 No 1 upper - 4500W 21 63-1/4 x 24 1.33 204 952 SUN-120 119 No 1 upper - 4500W 21 63-1/4 x 28 1.59 311 1,197 SOLAR COLLECTORS (BULK) Part Number Collector Size (ft) Model Number 9910008000 4' x 8' CR-130-AP 9910009000 4' x 10' CR-140-AP Absorber Plate Aluminum w/black Selective Coating Aluminum w/black Selective Coating Riser Tube Diameter (Inches) Thermal Performance Collectors Per Pallet Hi Cube Trailer Load 5/8 32,000 Btu/day 7 5.56 864 $7,975 5/8 40,000 Btu/day 7 6.67 1087 9,518 SOLAR COLLECTORS (INDIVIDUAL) Part Number Collector Size (ft) Model Number Absorber Plate Maximum Collectors Per Package Hi Cube Trailer Load Approximate Weight (lbs.) 1 Collector Pkg. 2 Collector Pkg. 3 Collector Pkg. List 9910012000 (1-Collector) Aluminum w/ 8.33 220 $1,769 4' x 8' CR-130-AP Black Selective 1-2 9910013000 (2-Collector) Coating 8.33 340 3,285 9910014000 (1-Collector) Aluminum w/ 10 275 1,968 4' x 10' CR-140-AP Black Selective 1-2 9910015000 (2-Collector) Coating 10 425 3,665 NOTES: 1. Solar collectors are included with all Deluxe and Standard Solar System packages. 2. Solar collectors ordered in bulk or individually do not include Fastener Kits that are required for all installations. These are ordered separately, see part number 9910052000 in the Miscellaneous Items table on page 22. 3. Thermal performance ratings are according to SRCC OG-100 certification data - category C, clear day conditions. 4. Rebate Program does not apply to this category. Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 23

RESIDENTIAL SOLAR Integrated Solar Pump Stations 2-year limited warranty Standard and Double Wall pump stations available Part Number Circulating Pump(s) Model(s) Integrated Heat Exchanger NOTES: 1. Integrated Solar Pump Stations are included with all Deluxe and Standard Solar System packages. 2. Rebate Program does not apply to this category. Solar Accessories COMPLETE ROOF MOUNTING KITS Height (inches) Width (inches) NOTES: 1. Complete Roof Mounting Kits are all inclusive and come with everything needed to mount collectors to the roof type specified including: collector mounting brackets, mounting clips, channel nuts, spanner mounting hardware and the flashings. These kits should be ordered when solar collectors are ordered separately. 2. These kits do not include roof flashings for the solar loop supply and return lines; see part numbers 9910049000 and 9910050000 in the Miscellaneous Items table on page 22. 3. Rebate Program does not apply to this category. 9910016000 One: Primary Solar Loop - Wilo Star S16-U None 20-1/4 12-13/64 24 $998 9910042000 Part Number Two: Primary Solar Loop - Wilo Star S21-U, Secondary Potable Loop - Wilo Star S21-BU Number of Collectors Roof Type Stainless Steel Flat Plate-Type -Double Wall Description 25-13/32 13-1/2 51 2,414 9910019000 1 Shingle All Inclusive Mounting Hardware Kit 4.5 $182 9910020000 2 Shingle All Inclusive Mounting Hardware Kit 9.0 243 9910021000 3 Shingle All Inclusive Mounting Hardware Kit 13.5 343 9910022000 1 Tile All Inclusive Mounting Hardware Kit 16.0 498 9910023000 1 Flat All Inclusive Mounting Hardware Kit 11.0 449 9910024000 1 Split Seam Metal All Inclusive Mounting Hardware Kit 4.0 189 9910025000 1 Corrugated Metal All Inclusive Mounting Hardware Kit 4.0 256 SUPPLEMENTAL ROOF MOUNTING KITS Part Number Number of Collectors Roof Type Description 9910026000 1 Shingle Standard Solar System Packages 2 $170 9910027000 1 Tile 1 Collector Package System 12 457 9910028000 2 Tile 2 Collector Package System 23 866 9910029000 3 Tile 3 Collector Package System 34 1,266 9910030000 1 Flat 1 Collector Package System 12 386 9910031000 2 Flat 2 Collector Package System 24 732 9910032000 3 Flat 3 Collector Package System 36 1,077 9910033000 1 Split Seam Metal 1 Collector Package System 2 147 9910034000 2 Split Seam Metal 2 Collector Package System 4 269 9910035000 3 Split Seam Metal 3 Collector Package System 6 390 9910036000 1 Corrugated Metal 1 Collector Package System 2 223 9910037000 2 Corrugated Metal 2 Collector Package System 4 314 9910038000 3 Corrugated Metal 3 Collector Package System 6 452 NOTES: 1. The Shingle type Supplemental Roof Mounting Kit is to be used with Standard Solar System Packages when they are installed on composite/shingle roofs, one kit is required for each solar collector in the system package. 2. The remaining Supplemental Roof Mounting Kits are used with Standard and Deluxe Solar System Packages when installed on the roof type specified. These components are in addition to the components supplied with solar system packages. 3. Rebate Program does not apply to this category. 24 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Solar Accessories Continued miscellaneous items 9910049000 9910050000 9910052000 Transfer Pump Part Number Description 9910049000 Roof Flashing for solar loop piping supply line (1 - copper) 1 $86 9910050000 Roof Flashing for solar loop piping return line and sensor wire (1 - copper) 1 103 9910051000 Temperature Sensor Control Wire 75' Roll 3.5 176 9910052000 Solar Collector Fastener Kit (4 each: mounting clips, bolts, channel nuts, springs) 1 92 9910053000 Contractor Installation Kit (Includes Transfer Pump) 28 835 9910054000 Solar Loop Expansion Tank (2-gallon) 7 140 9910055000 Propylene Glycol 5 gallons 47 214 NOTES: 1. Roof flashings for solar loop piping and sensor wiring should be installed on all installations when the roof is penetrated for the solar loop piping. One flashing for the solar loop supply line (PN 9910049000) and one for the solar loop return line and sensor wire (PN 9910050000) are used for each solar hot water installation. 2. The Temperature Sensor Control Wire is not included with Standard Solar System Packages and should be ordered separately when these packages are used. This wire is jacketed and properly rated for outdoor use with the system temperature sensor installed at the outlet of the solar collectors. The sensor wire is included with Deluxe Solar System Packages. 3. Solar Collector Fastener Kits are required for proper installation of the solar collectors. One kit should be ordered for each solar collector ordered separately. 4. Contractor Installation Kit includes transfer pump used to charge the solar loop, glycol mixing container, hoses, and pressure test air fill valve. Transfer pump, container, hoses, and pressure test air fill valve can be used for multiple solar installations. 5. Rebate Program does not apply to this category. RESIDENTIAL SOLAR OPTIONAL TILT MOUNTING KITS Part Number CR-130-AP Collectors Number of Collectors Tilt Angle (ft.) NOTES: 1. Tilt Kits are installed to optimize the solar collector s vertical orientation to the sun. 2. Rebate Program does not apply to this category. For Use With 9910059000 1 15 1-Collector 15 Tilt Mount Kit CR-130-AP Collector 19.2 $475 9910066000 1 30 1-Collector 30 Tilt Mount Kit CR-130-AP Collector 26.7 520 9910067000 1 45 1-Collector 45 Tilt Mount Kit CR-130-AP Collector 29.8 585 9910068000 1 60 1-Collector 60 Tilt Mount Kit CR-130-AP Collector 51.2 611 9910069000 1 75 1-Collector 75 Tilt Mount Kit CR-130-AP Collector 55.4 642 CR-140-AP Collectors 9910070000 1 15 1-Collector 15 Tilt Mount Kit CR-140-AP Collector 24.8 $524 9910071000 1 30 1-Collector 30 Tilt Mount Kit CR-140-AP Collector 28.5 589 9910072000 1 45 1-Collector 45 Tilt Mount Kit CR-140-AP Collector 54.8 639 9910073000 1 60 1-Collector 60 Tilt Mount Kit CR-140-AP Collector 62.5 679 9910074000 1 75 1-Collector 75 Tilt Mount Kit CR-140-AP Collector 68.1 733 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 25

RESIDENTIAL SOLAR WARRANTY RESIDENTIAL SOLAR EXTENDED WARRANTY Extended Warranty Available for Residential Solar Tanks and Pump Stations 4 YEAR EXTENDED SOLAR TANK WARRANTY these kits extend the warranty period for the sun/sunx style tanks from 6 years to 10 years qualifying models: SUN-65 (Direct Solar Booster Tank) SUN-80 (Direct Solar Booster Tank) SUN-120 (Direct Solar Booster Tank) SUNX-80 (Indirect Solar Booster Tank) SUNX-120 (Indirect Solar Booster Tank) 3 YEAR EXTENDED SOLAR TANK WARRANTY these kits extend the warranty period for the sun/sunx style tanks from 2 years to 5 years Part Number 9008132005 Description A. O. Smith Solar Tank 4 year Extended Warranty (eligible models: SUN-65, SUN-80, SUN-120, SUNX-80, SUNX- 120) (This kit contains instructions, an extension sticker and a certificate request form.) 2 $134 9008133005 A. O. Smith Pump Station 3 year Extended Warranty 2 110 Warranties apply to residential installations only. 26 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Diaphragm Pump Tanks Pre-Pressured In-Line 5-year limited warranty PSI Working Pressure Diameter (Inches) Height (Inches) Load Percent 53 Diaphragm Pump Tanks Pre-Pressured Free-Standing 5-year limited warranty Horizontal Diaphragm Pump Tanks Pre-Pressured 5-year limited warranty PMI-2 100 8-1/4 10-3/16 0.01 5 $73 PMI-5 100 11 14-3/4 0.01 9 101 PMI-7 100 11 21-1/16 0.01 14 166 PMI-14 100 15-3/8 21-1/16 0.07 24 186 PSI Working Pressure Diameter (Inches) Height (Inches) Load Percent 53 PM-14 100 15-3/8 24-15/16 0.07 24 $211 PM-20 100 15-3/8 32-3/8 0.10 34 181 PM-26 100 15-3/8 39-9/16 0.10 43 218 PM-32 100 15-3/8 47-1/4 0.10 52 268 PM-45 100 22 36-9/16 0.20 65 355 PM-65 100 22 48-5/8 0.25 90 431 PM-85 100 22 60-11/16 0.51 114 550 PM-86 100 26 46 0.75 116 716 PM-119 100 26 61-5/16 1.52 161 756 PSI Working Pressure Diameter (Inches) Height (Inches) Load Percent 53 PMH-7 100 11 12-7/8 0.03 16 $150 PMH-14 100 15-3/8 18-3/8 0.07 25 264 PMH-20 100 15-3/8 18-3/8 0.10 36 285 Expansion Tanks For Residential Space Heating 1-year limited warranty PSI Working Pressure Diameter (Inches) Expansion Tanks For Potable Water 5-year limited warranty Pump and Expansion Tanks DO NOT qualify for the unloading allowance. Height (Inches) Load Percent 53 Weight (lbs.) PMET-2 100 8-1/4 10-3/16 0.01 5 $39 PMET-5 100 11 14-3/4 0.01 9 48 PMET-7 100 11 21-1/16 0.03 14 90 PMET-14 100 15-3/8 23-1/2 0.07 25 123 Not for use with Potable Water Heating Systems PSI Working Pressure Diameter (Inches) Height (Inches) Load Percent 53 Weight (lbs.) PMC-10 150 15-3/8 15-1/2 0.05 20 155 Pump and Expansion Tanks DO qualify for the TOTAL truckload volume. RESIDENTIAL PUMP & EXPANSION TANKS Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 27

RESIDENTIAL PUMP & EXPANSION TANKS Expansion Tanks For Potable Water 5-year limited warranty PSI Working Pressure Diameter (in) Pump and Expansion Tanks DO NOT qualify for the unloading allowance. Expansion Tanks For Potable Water 1-year limited warranty Pump and Expansion Tanks DO NOT qualify for the unloading allowance. Height (in) Hi Cube Trailer Load TW-5-5 150 7.9 11 0.01 5 $22.55 TW-12-5 150 10.6 13.7 0.03 9 $29.00 PSI Working Pressure Diameter (in) Height (in) Pump and Expansion Tanks DO qualify for the TOTAL truckload volume. Hi Cube Trailer Load TW-5-1 150 7.9 11 0.01 5 $17.25 TW-12-1 150 10.6 13.7 0.03 9 $25.00 Pump and Expansion Tanks DO qualify for the TOTAL truckload volume. Heavy-Duty Glasslined Storage Tanks 5-year limited warranty Diameter (Inches) Height (Inches) Galvanized Storage Tanks 1-year limited warranty Diameter (Inches) Height (Inches) Load Percent 53 Load Percent 53 SGT-42 42 16-1/2 49 0.20 69 $194 SGS-42 42 20 35-7/8 0.20 79 206 SG-82 82 20 62-1/4 0.60 154 333 SG-120 120 24 63 0.75 206 429 Z-12 12 12 26-1/2 0.01 27 $161 Z-21 21 16 27 0.10 45 169 Z-32 32 16 38-3/4 0.10 52 181 ZT-42 42 16 51 0.15 71 183 ZS-42 42 20 33-5/8 0.20 71 204 Z-82 82 20 63 0.30 114 304 Z-120 120 24 64-1/2 0.75 154 400 Z-220 220 30 78 1.25 303 966 Z-315 315 36 79-1/2 1.50 416 1,296 Z-480 480 42 87 2.50 640 1,703 ZU-525 525 36 131 5.56 685 1,858 ZU-900 900 42 161 8.33 1040 3,589 28 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Commercial Gas & Electric Information WARRANTIES ACCESSORIES Commercial Gas 3-Year Limited Warranty on Tank (includes sediment caused failure) 1-Year Limited Warranty on Parts. Commercial Electric 3-Year Limited Warranty on Tank (includes sediment caused failure) 1-Year Limited Warranty on all other Parts. Optional 5-Year Warranty An optional 5-Year Limited Warranty on the Tank (includes sediment caused failure) is available on most commercial gas and electric models. Extended warranty to be purchased separately. ORDERING INFORMATION ELECTRIC DURA-POWER LIGHT DUTY ELECTRIC PAGE (39) DEN-DEL models not available as ASME tanks. Maximum input is 12 kw and can be ordered in 120, 240, 277 and 480. 120 and 277 single phase only. Not all wattage and voltage combinations are available, see page 36 for details. GOLD SERIES DVE-DRE PAGE (40 & 41) DVE-DRE models are available as ASME tank construction (Add $413.00) and ship with CSA Certified and ASME rated T&P relief valve. Maximum input is 54 kw and can be ordered in 208, 240, 277 and 480 volts. 277 is single phase only. All models come as three phase unless specified and are field convertible to single phase. 208/54 kw are 3 phase only and not convertible to single phase. DVE models have immersion thermostats and DRE models use surface mounted thermostats. Add $51 for 277 and 480 volt models. CUSTOM XI SERIES PAGE (46-48) DSE models are immersion thermostat only, maximum 90 kw and ship with CSA Certified and ASME rated T&P relief valve. All models are ASME construction only. Specify wattage and voltage when ordering. All units except 277 volts ship 3 Phase and are convertible to single phase in most cases. Add $ 51 for 277 and 480 volt models. GAS Specify Natural or Propane (LP) gas. When ordering add $40.00 to the when Propane (LP) gas is specified. Certain models are available with ASME construction. Consult local codes to determine if ASME code tank is required. All commercial models will be shipped with a CSA Certified and ASME rated T&P Relief Valve. side wall power vent kits Kit # Gas Models 9003432005 65-100MBTU $903 9005381205 120-200MBTU 685.50 9003434205 250-500MBTU 799.50 leg kit for ul sanitation to meet nsf 5* condensate neutralization kits For Use With Vertex, Vertex 100, BTX, BTXL,BTH, XWH and VWH Part Number 9007959005 9007960005 9007961005 9007962005 9007963005 concentric vent kits Description CNS-2 Condensate Neutralization Kit - 75,000 to 199,000 BTU CNS-6 Condensate Neutralization Kit - 200,000 to 500,000 BTU CNS-10 Condensate Neutralization Kit - 501,000 to 1 MBTU CNS-20 Condensate Neutralization Kit - 1.1 M to 2M BTU CNS-30 Condensate Neutralization Kit - 2.1 M to 3.4M BTU $82.50 187.50 200 210 237.50 9007964005 CNS-2 Refill Kit 51.50 9007965005 CNS-6 Refill Kit 57.50 9007966005 CNS-10 Refill Kit 61 9007967005 CNS-20 Refill Kit 67 9007968005 CNS-30 Refill Kit 73.50 For use with Vertex, Vertex 100, BTX, BTXL and BTH Models Part Number 9006328005 9008841005 Kit # Gas Models 9003425205 BTR, BTN $82.50 9008883005 BTL 60 Description Kit-Concerntric Vent 3" for Vertex, Vertex 100, BTX BTXL and BTH Models. Kit-Concerntric Vent 6" for BTH 300(A) through BTH 500(A) Optional Low Profile Termination Vent Kits 3 Flush Mount Vent Kit p/n 9008933005 $86.00 (List ) 4 Flush Mount Vent Kit p/n 9008934005 $ 94.00 (List ) 6 Flush Mount Kit p/n 9008935005 $102.00 (List ) *Call A. O. Smith Parts Department to order. (800) 433-2545 Weight for 3 concentric 10 Lbs Weight for 6 concentric 12 Lbs $58.00 $325.00 COMMERCIAL INFORMATION Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 29

icomm Remote Monitoring System For information and ordering call 1.888.WATER02 or visit www.aosmithconnect.com icomm Requirements Facility must have always on internet (wired or wireless) icomm compatible water heater icomm Features Provides remote monitoring via www.aosmithconnect.com E-mail and text messaging of fault conditions Leak detection and notification Graphs unit performance and operational history HARDWARE Item Description Retail ICMA icomm Communications Module Main communications board required for any icomm installation. $399 $359 IMDA icomm Multi-Device Adapter Needed if more than one water heater will be connected to the control module. Order 1 MDA for each water heater installed. 98 88 IABA icomm Alarm Box Accessory alarm box that includes an audible alarm and alarm light. 189 170 Note: If using wireless internet an optional wireless adapter is needed to provide wired connection to the communications module. Recommended adapter Linksys WGA600N or equivalent COMMERCIAL INFORMATION icomm Elite Remote Monitoring System For information and ordering call 1.888.WATER02 or visit www.aosmithconnect.com The A. O. Smith icomm Elite service plan provides a site evaluation, remote monitoring actively managed and monitored by A. O. Smith, service dispatch, and extended warranties. This provides peace of mind with no out-of-pocket expense for the first three years, and is available on our most popular gas and electric models. This plan ensures a hassle-free water heater experience. icomm ELITE SERVICE PLAN Elite Service Plan* ELITESV120 BTH-120(A) $775 ELITESV150 BTH-150(A) 950 ELITESV199 BTH-199(A) 990 ELITESV250 BTH-250(A) 1,030 ELITESV300 BTH-300(A) 1,930 ELITESV400 BTH-400(A) 2,015 ELITESV500 BTH-500(A) 2,120 ELITEGLDEL DVE-52(A), 80(A), 120(A) 860 ELITEC0520 DSE-5, 10, 20 565 ELITEC3050 DSE-30, 40, 50 770 ELITEC6512 DSE-65, 80, 100, 120 940 *icomm Elite service plan requires a three year service subscription of $300 annually. Installation charges are the customer s responsibility. The plan must be started within 90 days of the heater installation. Other restrictions apply. SIGN-UP FOR ELITE SERVICE IN THREE EASY STEPS. 1. Confirm your heater(s) eligibility by entering the model and serial number of your heater(s) at www.aosmithconnect.com; click on compatible products. 2. Purchase and install an icomm monitoring system and subscription. 3. Call 1-888-WATER02 to start your hasslefree service plan. 30 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Building Management System BACnet and Modbus Interface BMS gateway for control of A. O. Smith Water Heaters Connect your A. O. Smith water heater to your building management system using the new Millennium control from ICC* (Industrial Control Communications, Inc.) Works with Cyclone, BTH, BTX-100 and BTXL-100, McBee DVE, Renton DSE/DVE/DHE ETH-1000 Ethernet connection XLTR-1000 Serial RS-485 connection Protocol Part # BACnet Modbus One unit needed per water heater. Connection Type Application 9910093000 Commercial Gas - Cyclone BTH & BTX(L)-100 $625 Serial (RS485) 9910094000 Commercial Electric - DSE, DVE, DHE 625 9910099000 Commercial Gas - Cyclone BTH & BTX(L)-100 825 Ethernet (IP) 9910100000 Commercial Electric - DSE, DVE, DHE 825 9910096000 Commercial Gas - Cyclone BTH & BTX(L)-100 625 Serial (RS485) 9910097000 Commercial Electric - DSE, DVE, DHE 625 9910102000 Commercial Gas - Cyclone BTH & BTX(L)-100 825 Ethernet (IP) 9910103000 Commercial Electric - DSE, DVE, DHE 825 COMMERCIAL Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 31

Cyclone HE High Efficiency ENERGY STAR Qualified Vents using PVC, Polypropylene or CPVC pipe Models comply with Texas Low-NOx and air quality management districts with NOx emission requirements of less than 40 ng/j Recovery @ 100 F Rise Per Hour Input BTU/ HR Natural Gas Height Diameter Vent Size Hi Cube Trailer Load BTX-80 50 83 76,000 71 22 2, 3 or 4 1.39 245 $2,231 Not available in LP gas. Standard model certified from sea level to 5,300 ft. elevation. Order SMR S54 for elevations to 10,100 ft. Optional Condensate Neutralization Kits available - See page 71 for more information. Power vent only Plant of Manufacture: McBee, South Carolina Cyclone Xi High Efficiency Power Direct ENERGY STAR Qualified Vents using PVC, Polypropylene or CPVC pipe Complies with SCAQMD Rule 1146.2 and other air quality management districts with Similar Requirements for Ultra-low NOx emissions requirements of 14 ng/j or 20 ppm Recovery @ 100 F Rise Per Hour Input BTU/ HR Height Diameter Vent Size Hi Cube Trailer Load BTX-100 50 116 100,000 66-3/4 22 2 or 3 1.39 264 $3,218 BTXL-100 75 116 100,000 65-1/4 27-3/4 2 or 3 2.94 382 4,423 COMMERCIAL GAS Specify when ordering propane (LP) gas and add $40 to the price. Standard model certified from sea level to 10,100 ft. elevation. Optional Concentric Vent Kits (9006328005) and Condensate Neutralization Kits (9007959005). Cyclone Mxi High Efficiency ENERGY STAR Qualified Vents with PVC, CPVC, Polypropylene, or Al29-4C Stainless Steel Recovery @ 100 F Rise Per Hour Input BTU/ HR *Natural Gas Add $40.00 to price for propane gas. Optional Concentric Vent Kits. 9006328005 (BTH-120 through BTH-250 models) 9008841005 (BTH-300 through BTH-500 models). Optional Condensate Neutralization Kits available. See page 28 for more information. Electrical characteristics 120V-60 Hz A.C., 5.0A A in model number represents ASME construction. Optional common vent kits available. See page 73 for more information. Models are certified from sea level to 10,100 ft. elevation. Height Diameter Vent Size Plant of Manufacture: McBee, South Carolina Complies with SCAQMD Rule 1146.2 and other air quality management districts with Similar Ultra-low NOx emission requirements of 14 ng/j or 20 ppm Hi Cube Trailer Load BTH-120 60 138 120,000 55-1/2 27-3/4 3 2.78 460 $4,719 BTH-150 100 178 150,000 76 27-3/4 3 2.78 523 6,419 BTH-199 100 235 199,900 76 27-3/4 3 2.78 523 6,576 BTH-250 100 291 250,000 76 27-3/4 3 2.78 523 7,442 BTH-300 119 349 300,000 75-3/4 33-1/8 4 3.33 855 8,492 BTH-400 119 460 399,900 75-3/4 33-1/8 4 3.33 855 9,308 BTH-500 119 576 499,900 75-3/4 33-1/8 4 3.33 855 10,737 BTH-120A 60 138 120,000 55-1/2 27-3/4 3 2.78 490 6,052 BTH-150A 100 178 150,000 76 27-3/4 3 2.78 553 7,907 BTH-199A 100 235 199,900 76 27-3/4 3 2.78 553 8,070 BTH-250A 100 291 250,000 76 27-3/4 3 2.78 553 8,845 BTH-300A 119 349 300,000 75-3/4 33-1/8 4 3.33 855 10,003 BTH-400A 119 460 399,900 75-3/4 33-1/8 4 3.33 855 10,756 BTH-500A 119 576 499,900 75-3/4 33-1/8 4 3.33 855 11,806 Plant of Manufacture: McBee, South Carolina 32 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Master-Fit BTR Models Recovery @ 100 F Rise Per Hour Master-Fit BTR Booster Models Input BTU/HR Natural Gas Height to Top of Vent Specify when ordering propane (LP) gas and add $40.00 to the price of each unit. A 6 x 8 vent reducer is provided with each unit. Certified for both 6 or 8 inch venting. See local codes. *Booster models are induced draft with no damper. Height is to top of blower motor. Electrical characteristics 120V-60 Hz A. C., 5.0A. A after model number designates ASME construction. Leg Kits for UL Sanitation to Meet NSF-5. Part # 9003425205 $82.50. Uses standard metal single wall or double wall type B vent. Hi Cube Trailer Load Diameter Vent Size Standard ASME Standard ASME BTR-120* 71 116 120,000 69-3/4 27-3/4 5 2.10 400 N/A $4,166 N/A BTR-154 81 149 154,000 73 27-3/4 6 2.10 470 N/A 5,295 N/A BTR-180 81 174 180,000 67-1/2 27-3/4 6 2.10 470 N/A 5,460 N/A BTR-197 100 193 199,000 75 27-3/4 6 2.10 603 N/A 5,613 N/A BTR-198 100 193 199,000 75 27-3/4 6 2.10 603 N/A 5,613 N/A BTR-199 81 184 199,000 67-1/2 27-3/4 6 2.10 470 N/A 5,493 N/A BTR-200(A) 100 193 199,000 72 30-1/4 6 2.78 630 725 5,637 7,102 BTR-250(A)* 100 242 250,000 72 30-1/4 8 2.78 630 725 6,229 7,620 BTR-251(A)* 65 243 251,000 75 27-3/4 8 2.08 750 862 5,860 7,225 BTR-275(A)* 100 267 275,000 72 30-1/4 8 2.78 630 725 6,419 7,810 BTR-305(A) 65 296 305,000 75 27-3/4 8 2.08 750 862 6,545 7,863 BTR-365(A) 85 354 365,000 79-1/2 27-3/4 8 2.78 725 833 7,344 8,688 BTR-400(A) 100 378 390,000 75-1/2 30-1/4 8 2.78 760 874 9,176 10,554 BTR-500(A) 85 485 500,000 81-1/2 27-3/4 8 2.78 812 857 10,337 11,479 Specify when ordering propane (LP) gas and add $40.00 to the price of each unit. *Model BTR 120 is shipped with a 6" x 5" flue outlet adapter. Models BTR 250, 251 and 275 are shipped with a 8" x 6" flue outlet adapter. Standard models certified from sea level to 2,000 ft. elevation. Order SMR S54 for elevations up to 8,000 ft. BTR-500 Model features induced draft design and no damper. Recovery @ 100 F Rise Per Hour Input BTU/HR Natural Gas Height to Vent Diameter Vent Size Plant of Manufacture: McBee, South Carolina Hi Cube Trailer Load BTR-151* 32 145 150,000 45 27-3/4 6 2.78 440 $5,152 BTR-201* 32 194 199,900 45 27-3/4 6 2.78 440 5,297 BTR-151A* 32 145 150,000 45 27-3/4 6 2.78 460 6,267 BTR-201A* 32 194 199,900 45 27-3/4 6 2.78 460 6,450 Plant of Manufacture: McBee, South Carolina COMMERCIAL GAS Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 33

Conservationist BL Ultra-Low NOx Single Flue Model Complies with California SCAQMD Rule 1146.2 and other air quality management districts with similar Ultra-low NOx emission requirements of 20 ppm or 14 ng/j No 120V power source required Natural gas only. Recovery @ 100 F Rise Per Hour Input BTU/ HR Natural Gas Height Including Draft Hood Conservationist BTF Power Vent Single Flue Model Vents through Roof or Sidewall Using Plastic Pipe Such as PVC, CPVC, Polypropylene Diameter Vent Size Hi Cube Trailer Load BL-80 74 73 75,100 62-1/16 25-1/4 4 1.59 285 $2,541 BL-100 98 74 75,100 70-1/2 27-3/4 4 1.25 350 2978 COMMERCIAL GAS Recovery @ 100 F Rise Per Hour Input BTU/ HR Natural Gas Specify when ordering propane (LP) gas and add $40 to the price. Models certified to 10,100 ft. elevation. Conservationist BPD Power Direct Vent Single Flue Model Vents through Roof or Sidewall Using Plastic Pipe Such as PVC, CPVC, Polypropylene Specify when ordering propane (LP) gas and add $40 to the price. Models certified to 10,100 ft. elevation. Height To Top Of Blower Diameter Vent Size Hi Cube Trailer Load BTF-80 75 73.7 76,000 70-5/8 26 3 or 4 1.25 277 $2,535 Recovery @ 100 F Rise Per Hour Input BTU/HR Natural Gas Height Including Draft Hood Diameter Vent Size Hi Cube Trailer Load BPD-80 75 73.7 76,000 70-5/8 26 3 or 4 1.25 277 $2,955 34 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Master-Fit BTL Ultra-Low NOx Models Model Number Recovery @ 100 F Rise Per Hour Recovery @ 100 F Rise Per Hour Input BTU/HR Natural Gas Electrical characteristics 120V-60 Hz A. C., 5.0A. A after model number designates ASME construction. Leg Kits for UL Sanitation meet NSF-5 900888305 (increases overall height by 4"). BTL models not available in LP gas. Conservationist BT Single Flue Models BT Light-Duty Gas Input BTU/HR Natural Gas Height Including Draft Hood Diameter Vent Size Hi Cube Trailer Load BT-60 55 58/52* 60000/54000* 59 3/4 24 4 0.76 185 $1,553 BT-80 74 73 75,100 61-1/8 26-1/2 4 1.59 275 2206 BT-100 98 73 75,100 68-5/8 27-3/4 4 1.25 350 2,733 See page 70 for Power Vent Kits. NSF leg kit for BT-80 and BT-100 models-9006645005-$127.50. Add $40 to price for propane gas. *BT-60 propane 54,000 BTU. Height to Vent Diameter Vent Size Hi Cube Trailer Load BTL-120 81 115 120,000 63-3/4 27-3/4 6 3.13 605 $5,118 BTL-154 81 148 154,000 63-3/4 27-3/4 6 3.13 605 6,319 BTL-180 81 173 180,000 63-3/4 27-3/4 6 3.13 605 6,657 BTL-198 81 191 199,000 63-3/4 27-3/4 6 3.13 605 6,698 BTL-199 100 191 199,000 71-3/4 27-3/4 6 3.13 665 6,698 BTL-250 100 240 250,000 71-3/4 27-3/4 8 3.13 665 6,958 BTL-275 100 264 275,000 71-3/4 27-3/4 8 3.13 665 7,634 BTL-310 86 298 310,000 71-3/4 27-3/4 8 3.13 740 7,827 BTL-366 86 352 366,000 71-3/4 27-3/4 8 3.13 740 8,798 BTL-400 86 375 390,000 71-3/4 27-3/4 8 3.13 740 10,989 BTL-250A 100 240 250,000 71-3/4 27-3/4 8 3.13 715 8,676 BTL-275A 100 264 275,000 71-3/4 27-3/4 8 3.13 715 9,465 BTL-310A 86 298 310,000 71-3/4 27-3/4 8 3.13 790 10,038 BTL-366A 86 352 366,000 71-3/4 27-3/4 8 3.13 790 10,383 BTL-400A 86 375 390,000 71-3/4 27-3/4 8 3.13 790 12,605 Models comply with Texas requirements for Low-NOx emissions of less than 40 ng/j Plant of Manufacture: McBee, South Carolina Plant of Manufacture: McBee, South Carolina Plant of Manufacture: Ashland City, Tennessee COMMERCIAL GAS Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 35

Power Burner BTP Models Recovery @ 100 F Rise Per Hour Input BTU/HR Natural Gas Height Diameter Vent Size Hi Cube Trailer Load Weight (lbs.) BTP-139 81 136 140,000 74-3/4 27-3/4 6 2.08 556 $6,167 BTP-199 81 193 199,000 74-3/4 27-3/4 6 2.08 545 6,365 BTP-270 81 262 270,000 74-3/4 27-3/4 8 2.08 547 7,155 BTP-370** 81 359 370,000 74-3/4 27-3/4 8 2.08 634 7,924 BTP-139A 81 136 140,000 74-3/4 27-3/4 6 2.08 658 7,577 BTP-199A 81 193 199,000 74-3/4 27-3/4 6 2.08 635 7,777 BTP-270A 81 262 270,000 74-3/4 27-3/4 8 2.08 632 8,568 BTP-370A** 81 359 370,000 74-3/4 27-3/4 8 2.08 731 9,335 Add $40.00 to price for propane gas. Authorized start-up service included required to activate warranty. (Continental U.S. Only). "A" in model represents ASME construction. **The BTP-370 is available in natural gas only. Plant of Manufacture: McBee, South Carolina Power Burner BTP Models Complies with Ultra low NOx Emissions standards of 14 ng/j (Except BTP 740) COMMERCIAL OIL-FIRED/TANKLESS Recovery @ 100 F Rise Per Hour Input BTU/HR Natural Gas Height Diameter Vent Size Hi Cube Trailer Load BTP-540A 85 523 540,000 93 29-1/2 9 3.45 950 $11,813 BTP-650A 85 630 650,000 93 29-1/2 9 3.45 950 12,212 BTP-740A 85 718 740,000 93 29-1/2 9 3.45 950 12,609 Not available in propane (LP). Plant of Manufacture: McBee, South Carolina Vent Kit included in unit price. BTP 540 and 650 comply with Ultra Low NOx requirements of 14 ng/j. BTP 740 meet 40ng/J requirements. Authorized start-up service included required to activate warranty. Consult local factory representative (Continental U.S. Only). atmospheric vent Part Number Description 9500007350 Standard Atmospheric Kit (Vertical Vent) $246 Vent Kit included in unit price when ordered with heater Power Burner BTPV Models Complies with Ultra low NOx Emissions standards of 14 ng/j (Except BTPV 740) Recovery GPH 100 F Rise Input BTU/ HR Natural Gas Height Diameter Vent Size Hi Cube Trailer Load BTPV-540A 85 523 540,000 93 29-1/2 9 3.45 950 $12,245 BTPV-650A 85 630 650,000 93 29-1/2 9 3.45 950 12,643 BTPV-740A 85 718 740,000 93 29-1/2 9 4.35 950 13,042 Authorized start-up service included required to activate warranty. (Continental U.S. Only). BTP 540 and 650 comply with Ultra Low NOx requirements of 14 ng/j. BTP 740 meet 40ng/J requirements. "V" models for horizontal and direct venting. Must specify the vent required at time of order. Not available in propane (LP). Plant of Manufacture: McBee, South Carolina horizontal and direct vent (specify option at time of order) Part Number Description 9500007229 Horizontal Sidewall Vent Kit - BTPV-540A, BTPV-650A, BTPV-740A $414 9910001005 Horizontal Sealed Direct Vent Termination Kit - BTPV-540A, BTPV-650A, BTPV-740A 1,355 36 Vent Kit included in unit price. Plant of Manufacture: McBee, South Carolina Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Oil-Fired Water Heater Small Volume COF Models Free certified start-up Recovery @ 100 F Rise Per Hour Input BTU/HR Height Diameter Hi Cube Trailer Load COF-199 86 191 199,000 74-1/2 27-3/4 2.08 553 $6,230 COF-245 86 235 245,000 74-1/2 27-3/4 2.08 554 6,379 COF-315 84 302 315,000 74-1/2 27-3/4 2.08 554 6,741 COF-385 75 369 385,000 73-3/4 27-3/4 2.08 624 7,941 COF-455 75 436 455,000 73-3/4 27-3/4 2.08 700 9,288 COF-700 69 671 700,000 73-3/4 27-3/4 2.08 739 11,436 COF-315A 84 302 315,000 74-1/2 27-3/4 2.08 657 8,154 COF-385A 75 369 385,000 73-3/4 27-3/4 2.08 742 9,352 COF-455A 75 436 455,000 73-3/4 27-3/4 2.08 747 10,697 COF-700A 69 671 700,000 73-3/4 27-3/4 2.08 822 12,840 Add A after model number designates ASME construction. Burner packaged separately. Authorized start-up service included required to activate warranty. (Continental U.S. Only). Electrical characteristics: 120V 60Hz, A. C. 2-Stage Pump add $34. Barometric draft damper supplied. Plant of Manufacture: McBee, South Carolina COMMERCIAL GAS Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 37

Tankless Commercial Rack System 1-year limited parts warranty ++ Rack constructed of anodized aluminum Up to 8 heaters on a single rack and maximum system input up to 3,980,000 BTU/H COMMERCIAL TANKLESS Model* *For outdoor rack, change the ATI to ATO in the model number when ordering. Example: ATO-CRS-2WM-N For Propane, change the N to P in the model number when ordering. Example: ATI-CRS-2WM-P **Propane gas BTU/H is 13,000. ***Current numbers based on factory testing; 0.5 gpm required for activation; 0.4 gpm required for continuous fire after initial ignition ++Refer to product installation manual for specific warranty information. Tankless Non-Condensing 10-year limited heat exchanger warranty/5-year limited parts warranty ++ Power vent design * Type** Description Gas Consumption Input Minimum BTU/H Maximum BTU/H Thermal Efficiency NG/LP Category III stainless steel venting Hot Water Output (GPM) Maximum*** 45 F Rise 70 F Rise *For Propane, change N to P in the model number when ordering. (Example: ATIO-910-P). **Outdoor installations require vent cap. *** Current numbers based on factory testing; 0.5 GPM required for activation; 0.4 GPM required for continuous fire after initial ignition. ASME models. +Internet Minimum Advertised (IMAP). ++Refer to product installation manual for specific warranty information. Tankless Ultra-Low NOx Condensing High Efficiency 10-year limited heat exchanger/5-year limited parts warranty ++ IMAP+ List ATIO-910-N Indoor/Outdoor 15,000 380,000 80% / 82% 14.5 13.5 8.7 113 3,982 $4,978 ATIO-910-AN Indoor/Outdoor 15,000 380,000 80% / 82% 14.5 13.5 8.7 113 4,400 5,500 ENERGY STAR Qualified Power Vent Design vents in PVC, CPVC or ABS (intake and exhaust solid core only) Gas Consumption Input Minimum BTU/H** Maximum BTU/H Max GPM @ 100 F*** Length Width Height Weight (lbs.) List ATI-CRS-2WM-N 2 Unit Indoor Wall Mount Natural Gas 15,000 398,000 7.6 50 24 67 240 $7,060 ATI-CRS-3WM-N 3 Unit Indoor Wall Mount Natural Gas 15,000 597,000 11.4 70 24 67 350 10,540 ATI-CRS-4WM-N 4 Unit Indoor Wall Mount Natural Gas 15,000 796,000 15.2 90 24 67 460 14,020 ATI-CRS-2IL-N 2 Unit Indoor Inline Natural Gas 15,000 398,000 7.6 50 24 67 265 9,262 ATI-CRS-3IL-N 3 Unit Indoor Inline Natural Gas 15,000 597,000 11.4 70 24 67 387 14,366 ATI-CRS-4IL-N 4 Unit Indoor Inline Natural Gas 15,000 796,000 15.2 90 24 67 510 18,663 ATI-CRS-4B2B-N 4 Unit Indoor Back-To-Back Natural Gas 15,000 796,000 15.2 50 42 67 580 17,512 ATI-CRS-5B2B-N 5 Unit Indoor Back-To-Back Natural Gas 15,000 995,000 19 70 42 67 741 21,877 ATI-CRS-6B2B-N 6 Unit Indoor Back-To-Back Natural Gas 15,000 1,194,000 22.8 70 42 67 800 26,243 ATI-CRS-7B2B-N 7 Unit Indoor Back-To-Back Natural Gas 15,000 1,393,000 26.6 90 42 67 961 30,742 ATI-CRS-8B2B-N 8 Unit Indoor Back-To-Back Natural Gas 15,000 1,592,000 30.4 90 42 67 1020 34,843 9500014918 Mounting kit for multi-unit controller on Wall Mount and In-line racks 200 Complies with SCAQMD Rule 1146.2 and other air quality management districts with similar requirements for NOx emissions of less than 14 ng/j or 20 ppm * Type Gas Consumption Input Minimum BTU/H Maximum BTU/H Energy Hot Water Output (GPM) Maximum** 45 F Rise 70 F Rise *For Propane, change the N to P in the model number when ordering. (Example: ATI-540H-P). **Current Numbers based on factory testing; 0.5 GPM required for activation; 0.4 GPM required for continuous fire after initial ignition. Propane (LP) gas BTU/H is 13,000. + Internet Minimum Advertised (IMAP). ++ Refer to product installation manual for specific warranty information. IMAP+ List ATI-540H-N Indoor 15,000 199,000 0.95 10.0 8.4 5.4 63 $1,568 $1,960 ATO-540H-N Outdoor 15,000 199,000 0.95 10.0 8.4 5.4 63 1,568 1,960 38 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Light-Service Commercial Tank-Type Standard Electric Models Maximum kw Input Dairy Barn Electric Models No. of Elements Height to Top of Heater Diameter Hi Cube Trailer Load LTE 66D 66 11 2 60-1/4 22 1.09 146 $860 LTE 80D 80 11 2 60-1/2 24 1.39 175 $945 LTE 120D 119 11 2 61-1/2 28 1.59 268 $1,150 Available in 208 and 240 volts only. A $10.00 up-charge will apply to a 4-wire circuit. Available in 208 and 240 volts only. Maximum kw Input Number of Elements Height to Top of Heater Diameter Hi Cube Trailer Load DCE 82D 80 11 2 64-1/2 24 1.39 187 $1,050 COMMERCIAL ELECTRIC Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 39

Dura-Power Preferred Light-Duty Commercial Tank-Type Standard Electric Models Maximum kw Input No. of Elements Height to Top of Heater Diameter Hi Cube Trailer Load Compact Models DEL-6S 6 3 1 15-1/2 14-1/4 0.01 35 $542 DEL-10S 10 6 1 18-1/4 18 0.01 54 579 DEL-15S 15 6 1 26 18 0.01 58 611 DEL-20S 20 6 1 22-1/4 21-3/4 0.10 73 654 Lowboy Models DEL-30D 30 12 2 30-7/8 21-3/4 0.35 109 $1,343 DEL-40D 40 12 2 32-1/4 24 0.49 138 1,530 DEL-50D 50 12 2 32-1/4 26-1/2 0.56 184 1,697 Tall Models DEN-30D 30 10 2 34-1/2 20-1/2 0.45 105 $1,338 DEN-40D 40 12 2 45-1/8 20-1/2 0.49 122 1,476 DEN-52D 50 12 2 54-7/8 20-1/2 0.89 140 1,651 DEN-66D 66 12 2 60-3/4 21-3/4 1.00 166 1,877 COMMERCIAL ELECTRIC 40 DEN-80D 80 12 2 59-3/8 24 1.39 200 2,086 DEN-120D 119 12 2 62-4/9 29-3/8 1.75 337 2,917 D=Dual elements. S=Single element. s shown are for 120, 208, 240, 277 and 480V. KW INPUT AVAILABILITY Dura-Power electric water heaters are shipped with the standard voltage and kw inputs shown above unless otherwise specified when ordering. The chart below shows the available inputs (in kw) for Dura-Power water heaters in different voltages. Models & elements Voltage Wiring kw Input Available 6- Models Single-Element 10- through 20- Models Single-Element 30- through 120- Models Double-Element 120V - 1.5 2 2.5 3 208V - 1 1.5 2 2.5 3 240V - 1 1.5 2 2.5 3 277V - 1.5 2 2.5 3 480V - 2 2.5 3 120V - 1.5 2 2.5 3 208V - 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 240V - 1 1.5 2 2.5 3 4 4.5 5 5.5 6 277V - 1.5 2 2.5 3 4 4.5 5 6 480V - 2 2.5 3 4 4.5 5 5.5 6 120V 208V 240V 277V* 480V *Single-Phase only. **Available in three phase only. Simultaneous wiring not available - exceeds allowable amperage draw. Interlock 1.5 2 2.5 3 Simultaneous 3 4 5 Interlock 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 Simultaneous 2 3 4 5 6 7 8 9 10** Interlock 1 1.5 2 2.5 3 4 4.5 5 5.5 6 Simultaneous 2 3 4 5 6 8 9 10 11** 12** Interlock 1.5 2 2.5 3 4 4.5 5 6 Simultaneous 3 4 5 6 8 9 10 12 Interlock 2 2.5 3 4 4.5 5 5.5 6 Simultaneous 4 5 6 8 9 10 11 12 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Gold Series DRE Models Surface mounted thermostats Goldenrod 24k elements standard Optional ASME construction Model Number kw Input Recovery @ 100 F Rise Per Hour No. of Elements Height *208V models may use 3 additional elements. ++54 kw not available at 208V single-phase. Available in three-phase only. s shown for 208, 220 or 240V. For 277, 440, 480 or international voltages add $51. DRE models are not recommended for sanitizing water applications requiring 180 F. Field conversion kits allow easy change of voltage and kw inputs. Available from Service Parts Department. Note: When ordering please specify total kw and number of elements. See page 72 for manifold kits. Diameter Hi Cube Trailer Load DRE-52 50 6 25 3 55-3/4 27 x 21-3/4 1.19 260 $2,323 DRE-52 50 9 37 3 55-3/4 27 x 21-3/4 1.19 260 2,473 DRE-52 50 12 49 3 55-3/4 27 x 21-3/4 1.19 260 2,483 DRE-52 50 13.5 55 3 55-3/4 27 x 21-3/4 1.19 260 2,533 DRE-52 50 15 61 3 55-3/4 27 x 21-3/4 1.19 260 2,533 DRE-52 50 18 74 3* 55-3/4 27 x 21-3/4 1.19 260 2,593 DRE-52 50 24 98 6 55-3/4 27 x 21-3/4 1.19 265 3,563 DRE-52 50 27 111 6 55-3/4 27 x 21-3/4 1.19 265 3,713 DRE-52 50 30 123 6 55-3/4 27 x 21-3/4 1.19 265 3,803 DRE-52 50 36 147 6* 55-3/4 27 x 21-3/4 1.19 265 3,823 DRE-80 80 6 25 3 60-1/4 31 x 25-1/2 1.79 274 2,990 DRE-80 80 9 37 3 60-1/4 31 x 25-1/2 1.79 274 3,140 DRE-80 80 12 49 3 60-1/4 31 x 25-1/2 1.79 274 3,150 DRE-80 80 13.5 55 3 60-1/4 31 x 25-1/2 1.79 274 3,200 DRE-80 80 15 61 3 60-1/4 31 x 25-1/2 1.79 274 3,200 DRE-80 80 18 74 3* 60-1/4 31 x 25-1/2 1.79 274 3,260 DRE-80 80 24 98 6 60-1/4 31 x 25-1/2 1.79 279 4,230 DRE-80 80 27 111 6 60-1/4 31 x 25-1/2 1.79 279 4,380 DRE-80 80 30 123 6 60-1/4 31 x 25-1/2 1.79 279 4,470 DRE-80 80 36 147 6* 60-1/4 31 x 25-1/2 1.79 279 4,490 DRE-80 80 40.5 166 9 60-1/4 31 x 25-1/2 1.79 284 5,590 DRE-80 80 45 184 9 60-1/4 31 x 25-1/2 1.79 284 5,590 DRE-80 80 54++ 221 9 60-1/4 31 x 25-1/2 1.79 284 5,710 DRE-120 119 6 25 3 62-1/4 35 x 29-1/2 2.08 385 3,506 DRE-120 119 9 37 3 62-1/4 35 x 29-1/2 2.08 385 3,656 DRE-120 119 12 49 3 62-1/4 35 x 29-1/2 2.08 385 3,666 DRE-120 119 13.5 55 3 62-1/4 35 x 29-1/2 2.08 385 3,716 DRE-120 119 15 61 3 62-1/4 35 x 29-1/2 2.08 385 3,716 DRE-120 119 18 74 3* 62-1/4 35 x 29-1/2 2.08 385 3,776 DRE-120 119 24 98 6 62-1/4 35 x 29-1/2 2.08 390 4,746 DRE-120 119 27 111 6 62-1/4 35 x 29-1/2 2.08 390 4,896 DRE-120 119 30 123 6 62-1/4 35 x 29-1/2 2.08 390 4,986 DRE-120 119 36 147 6* 62-1/4 35 x 29-1/2 2.08 390 5,006 DRE-120 119 40.5 166 9 62-1/4 35 x 29-1/2 2.08 395 6,106 DRE-120 119 45 184 9 62-1/4 35 x 29-1/2 2.08 395 6,106 DRE-120 119 54++ 221 9 62-1/4 35 x 29 1/2 2.08 395 6,266 Plant of Manufacture: McBee, South Carolina COMMERCIAL ELECTRIC CHANGE ASME CONSTRUCTION Item Construction - Adds 50 pounds $413 When ordering an ASME tank place an A after the gallon size. exp. DRE 120A- 24. Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 41

SPECIALTY COMMERCIAL GAS Gold Xi Series DVE Models Surface mounted thermostats Goldenrod 24k elements standard Model Number kw Input Recovery @ 100 F Rise Per Hour Number of Elements Optional ASME construction Height Diameter Hi Cube Trailer Load DVE-52 50 6 25 3 55-3/4 27 x 21 3/4 1.19 260 $3,188 DVE-52 50 9 37 3 55-3/4 27 x 21 3/4 1.19 260 3,338 DVE-52 50 12 49 3 55-3/4 27 x 21 3/4 1.19 260 3,348 DVE-52 50 13.5 55 3 55-3/4 27 x 21 3/4 1.19 260 3,398 DVE-52 50 15 61 3 55-3/4 27 x 21 3/4 1.19 260 3,398 DVE-52 50 18 74 3* 55-3/4 27 x 21 3/4 1.19 260 3,458 DVE-52 50 24 98 6 55-3/4 27 x 21 3/4 1.19 265 4,428 DVE-52 50 27 111 6 55-3/4 27 x 21 3/4 1.19 265 4,578 DVE-52 50 30 123 6 55-3/4 27 x 21 3/4 1.19 265 4,668 DVE-52 50 36 148 6* 55-3/4 27 x 21 3/4 1.19 265 4,688 DVE-52 50 40.5 166 9 55-3/4 27 x 21 3/4 1.19 275 5,788 DVE-52 50 45 184 9 55-3/4 27 x 21 3/4 1.19 275 5,788 DVE-52 50 54++ 221 9 55-3/4 27 x 21 3/4 1.19 275 5,908 DVE-80 80 6 25 3 59-1/2 31 x 25 1/2 1.79 274 3,971 DVE-80 80 9 37 3 59-1/2 31 x 25 1/2 1.79 274 4,121 DVE-80 80 12 49 3 59-1/2 31 x 25 1/2 1.79 274 4,131 DVE-80 80 13.5 55 3 59-1/2 31 x 25 1/2 1.79 274 4,181 DVE-80 80 15 61 3 59-1/2 31 x 25 1/2 1.79 274 4,181 DVE-80 80 18 74 3* 59-1/2 31 x 25 1/2 1.79 274 4,241 DVE-80 80 24 98 6 59-1/2 31 x 25 1/2 1.79 279 5,211 DVE-80 80 27 111 6 59-1/2 31 x 25 1/2 1.79 279 5,361 DVE-80 80 30 123 6 59-1/2 31 x 25 1/2 1.79 279 5,451 DVE-80 80 36 148 6* 59-1/2 31 x 25 1/2 1.79 279 5,471 DVE-80 80 40.5 166 9 59-1/2 31 x 25 1/2 1.79 284 6,571 DVE-80 80 45 184 9 59-1/2 31 x 25 1/2 1.79 284 6,571 DVE-80 80 54++ 221 9 59-1/2 31 x 25 1/2 1.79 284 6,691 DVE-120 119 6 25 3 62-1/4 35 x 29 1/2 2.08 385 4,582 DVE-120 119 9 37 3 62-1/4 35 x 29 1/2 2.08 385 4,732 DVE-120 119 12 49 3 62-1/4 35 x 29 1/2 2.08 385 4,742 DVE-120 119 13.5 55 3 62-1/4 35 x 29 1/2 2.08 385 4,792 DVE-120 119 15 61 3 62-1/4 35 x 29 1/2 2.08 385 4,792 DVE-120 119 18 74 3* 62-1/4 35 x 29 1/2 2.08 385 4,852 DVE-120 119 24 98 6 62-1/4 35 x 29 1/2 2.08 390 5,822 DVE-120 119 27 111 6 62-1/4 35 x 29 1/2 2.08 390 5,972 DVE-120 119 30 123 6 62-1/4 35 x 29 1/2 2.08 390 6,062 DVE-120 119 36 148 6* 62-1/4 35 x 29 1/2 2.08 390 6,082 DVE-120 119 40.5 166 9 62-1/4 35 x 29 1/2 2.08 395 7,182 DVE-120 119 45 184 9 62-1/4 35 x 29 1/2 2.08 395 7,182 DVE-120 119 54++ 221 9 62-1/4 35 x 29 1/2 2.08 395 7,302 42 *208V models may use 3 additional elements. ++54 kw not available at 208V single-phase. s shown for 208, 220 or 240V. For 277, 440, 480 or international voltages add $51. Field conversion kits allow easy change of voltage and kw inputs. Available from Service Parts Department. Note: When ordering please specify total kw and number of elements. See page 72 for manifold kits. CHANGE ASME CONSTRUCTION Item When ordering an ASME tank place an A after the gallon size. exp. DVE 120A- 24. Plant of Manufacture: McBee, South Carolina Construction - Adds 50 pounds $413 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Custom Heavy-Duty Commercial Power Gas Tank-Type BTP Models Recovery @100 F Rise Per Hour Vent Size (Inches) Input BTU/HR *Natural Gas Height Diameter Hi Cube Trailer Load Weight (lbs) BTP-150-140 163 136 5 140,000 82-1/4 36-1/2 5 1,292 $17,280 BTP-150-199 163 193 6 199,000 82-1/4 36-1/2 5 1,292 17,867 BTP-150-255 163 247 6 255,000 82-1/4 36-1/2 5 1,292 18,389 BTP-150-270 163 262 6 270,000 82-1/4 36-1/2 5 1,397 22,719 BTP-150-400 151 387 7 400,000 82-1/4 36-1/2 5 1,397 23,298 BTP-150-540 151 524 8 540,000 82-1/4 36-1/2 5 1,505 24,380 BTP-150-720 145 698 10 720,000 82-1/4 36-1/2 5 1,510 24,830 BTP-200-300 221 291 6 300,000 84-1/2 44-3/4 10 2,098 32,837 BTP-200-600 221 582 8 600,000 84-1/2 44-3/4 10 2,098 33,548 BTP-200-800 221 776 10 800,000 84-1/2 44-3/4 10 2,103 34,641 BTP-200-1000 221 970 10 1,000,000 84-1/2 44-3/4 10 2,103 35,507 BTP-200-1250 210 1212 12 1,250,000 84-3/4 44-3/4 10 2,467 38,109 BTP-200-1500 201 1454 12 1,500,000 84-3/4 44-3/4 10 2,759 41,436 BTP-300-300 300 291 6 300,000 92 44-3/4 9.09 2,150 34,228 BTP-300-600 300 582 8 600,000 92 44-3/4 9.09 2,150 34,904 BTP-300-800 300 776 10 800,000 92 44-3/4 9.09 2,308 35,948 BTP-300-1000 300 970 10 1,000,000 92 44-3/4 9.09 2,308 36,770 BTP-300-1250 300 1212 12 1,250,000 92 44-3/4 9.09 2,584 39,251 BTP-300-1500 300 1454 12 1,500,000 92 44-3/4 9.09 2,774 42,420 BTP-400-600 411 582 8 600,000 89 55 11.11 3,207 41,855 BTP-400-800 411 776 10 800,000 89 55 11.11 3,212 41,938 BTP-400-1000 411 970 10 1,000,000 89 55 11.11 3,212 44,286 BTP-400-1250 411 1,212 12 1,250,000 89 55 11.11 3,212 45,312 BTP-400-1500 411 1,454 12 1,500,000 89 55 11.11 3,402 48,300 BTP-400-1750 404 1,697 14 1,750,000 89 55 11.11 3,528 49,526 BTP-400-2000 397 1,939 14 2,000,000 96-1/4 55 11.11 3,669 53,588 BTP-600-720 594 698 10 720,000 114 55 14.30 3,567 49,892 BTP-600-1000 594 970 10 1,000,000 114 55 14.30 3,567 52,351 BTP-600-1250 594 1,212 12 1,250,000 114 55 14.30 3,737 52,903 BTP-600-1500 594 1,454 12 1,500,000 114 55 14.30 3,737 54,354 BTP-600-1750 594 1,697 14 1,750,000 114 55 14.30 3,737 55,847 BTP-600-2000 594 1,939 14 2,000,000 114 55 14.30 3,737 57,443 BTP-600-2250 585 2,182 16 2,250,000 114 55 14.30 4,377 58,765 BTP-600-2500 575 2,424 16 2,500,000 114 55 14.30 4,519 61,077 Specify when ordering propane (LP) gas and add $40 to the price. Authorized start-up service included required to activate warranty. (Continental U.S. Only). See options next page. Plant of Manufacture: Renton, Washington COMMERCIAL ELECTRIC Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 43

Custom Heavy-Duty Commercial Power Gas Tank-Type BTP Models OPTIONAL EQUIPMENT Item Add On Optional Burner Diagnostic System: 270,000 thru 2,500,000 only $135 IRI Controls: 270,000 thru 2,500,000 BTU input. IRI not available below 270,000 BTU 2,052 CSD-1 Controls 140 Alarm Bell with Silencing Switch 218 Fresh Air Intake Adapter: 270-1250 MBH #500369-000 200 CSA Certified and ASME rated T&P Relief Valve (must be specified at time of order) check factory Safety Door Interlock 194 Code Compliance: Models meet the thermal efficiency and standby loss requirements of the U. S. Department of Energy and current edition of ASHRAE/IES 90.1, New York Code. Entire unit is UL listed. SPECIALTY COMMERCIAL DUAL-FUEL ADDER FOR BTPN-NOx BURNERS Burner BTU Input (Only those inputs shown are available) Note: Meets Texas NOx requirements of <30 PPM. Does not meet California requirement of <10 PPM. Note: Add 100 lbs. to standard unit shipping weight. NOx units not available over 2 million BTU s or less than 400,000. Low-NOx burners are natural gas only. Not all Low-NOx burners BTUH capacities are available with all tank sizes; check the current spec sheet for exact burner availability. Heater equipped with Low-NOx burners that comply with 30 ppm requirements.. Add On 400,000-540,000 BTUH $2,474 600,000-720,000 BTUH 2,856 800,000-1,000,000-1,250,000-1,500,000 BTUH 2,966 1,750,000-2,000,000 BTUH 3,381 44 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Custom Heavy-Duty Tank-Type Large Volume COF Models Recovery @ 100 F Rise Per Hour Input BTU/ HR Height Diameter Vent Size Hi Cube Trailer Load COF-150-140 163 136 140,000 82-1/4 36-1/2 5 5 1,292 $16,354 COF-150-199 163 193 199,000 82-1/4 36-1/2 6 5 1,292 16,913 COF-150-255 163 247 255,000 82-1/4 36-1/2 6 5 1,292 17,403 COF-150-270 163 262 270,000 82-1/4 36-1/2 6 5 1,397 21,505 COF-150-400 163 387 400,000 82-1/4 36-1/2 7 5 1,397 22,044 COF-150-540 163 524 540,000 82-1/4 36-1/2 8 5 1,505 23,069 COF-150-720 163 698 720,000 82-1/4 36-1/2 10 5 1,510 23,499 COF-200-300 221 291 300,000 84-1/2 44-3/4 6 10 2,098 31,071 COF-200-600 221 582 600,000 84-1/2 44-3/4 8 10 2,098 34,644 COF-200-800 221 776 800,000 84-1/2 44-3/4 10 10 2,103 34,883 COF-200-1000 201 970 1,000,000 84-1/2 44-3/4 10 10 2,103 35,700 COF-200-1250 201 1,212 1,250,000 84-3/4 44-3/4 12 10 2,467 36,065 COF-200-1500 201 1,455 1,500,000 84-3/4 44-3/4 12 10 2,675 39,211 COF-300-300 300 291 300,000 92 44-3/4 6 9.09 2,150 36,767 COF-300-600 300 582 600,000 92 44-3/4 8 9.09 2,150 37,128 COF-300-800 300 776 800,000 92 44-3/4 10 9.09 2,308 37,288 COF-300-1000 300 970 1,000,000 92 44-3/4 10 9.09 2,308 38,803 COF-300-1250 300 1,212 1,250,000 92 44-3/4 12 9.09 2,584 39,475 COF-300-1500 300 1,455 1,500,000 92 44-3/4 12 9.09 2,774 42,461 COF-400-600 411 582 600,000 89 55 8 11.11 3,207 39,608 COF-400-800 411 776 800,000 89 55 10 11.11 3,212 39,689 COF-400-1000 411 970 1,000,000 89 55 10 11.11 3,212 41,906 COF-400-1250 411 1,212 1,250,000 89 55 12 11.11 3,212 42,880 COF-400-1500 397 1,455 1,500,000 89 55 12 11.11 3,402 45,708 COF-400-1750 397 1,697 1,750,000 89 55 14 11.11 3,528 46,863 COF-400-2000 397 1,939 2,000,000 96-1/4 55 14 11.11 3,669 50,707 COF-600-720 594 698 720,000 114 55 10 14.30 3,667 47,214 COF-600-1000 594 970 1,000,000 114 55 10 14.30 3,667 48,701 COF-600-1250 594 1,212 1,250,000 114 55 12 14.30 3,667 50,211 COF-600-1500 594 1,455 1,500,000 114 55 12 14.30 3,837 51,437 COF-600-1750 594 1,697 1,750,000 114 55 14 14.30 3,837 54,348 COF-600-2000 594 1,939 2,000,000 114 55 14 14.30 3,837 55,615 COF-600-2250 575 2,182 2,250,000 114 55 16 14.30 4,477 55,615 COF-600-2500 575 2,424 2,500,000 114 55 16 14.30 4,619 57,795 Authorized start-up service included required to activate warranty. (Continental U.S. Only) Plant of Manufacture: Renton, Washington Code Compliance: Models meet the thermal efficiency and standby loss requirements of the U. S. Department of Energy and current edition of ASHRAE/IES 90.1, New York Code. Entire unit is UL listed. SPECIALTY COMMERCIAL GAS OPTIONAL EQUIPMENT Description Add On IRI (800,000 and above only) $2,052 CSD-1 Controls 140 CSA Certified and ASME rated T&P Relief Valve (must be specified at time of order) Consult y Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 45

SPECIALTY COMMERCIAL OIL-FIRED Power Burner COBT Models Recovery @ 100 F Rise Per Hour Input BTU/ HR Specify when ordering propane (LP) gas and add $40 to the price. Authorized start-up service included required to activate warranty. (Continental U.S. Only). Height Diameter Vent Size Hi Cube Trailer Load COBT-150-350 151 339 350,000 82-1/4 36-1/2 7 5 1,397 $27,812 COBT-150-400 151 387 400,000 82-1/4 36-1/2 7 5 1,397 28,384 COBT-150-540 151 524 540,000 82-1/4 36-1/2 8 5 1,505 29,468 COBT-150-720 151 698 720,000 82-1/4 36-1/2 10 5 1,510 29,923 COBT-200-300 221 291 300,000 84-1/2 44-3/4 6 10 2,098 37,928 COBT-200-600 221 582 600,000 84-1/2 44-3/4 8 10 2,098 38,645 COBT-200-800 221 776 800,000 84-1/2 44-3/4 10 10 2,103 39,743 COBT-200-1000 201 970 1,000,000 84-1/2 44-3/4 10 10 2,103 40,611 COBT-200-1250 201 1212 1,250,000 84-3/4 44-3/4 12 10 2,467 43,208 COBT-200-1500 201 1455 1,500,000 84 3/4 44-3/4 12 10 2,675 46,527 COBT-300-300 300 291 350,000 92 44-3/4 6 9.09 2,150 40,006 COBT-300-600 300 582 600,000 92 44-3/4 8 9.09 2,150 42,799 COBT-300-800 300 776 800,000 92 44-3/4 10 9.09 2,308 43,387 COBT-300-1000 300 970 1,000,000 92 44-3/4 10 9.09 2,308 44,994 COBT-300-1250 300 1,212 1,250,000 92 44-3/4 12 9.09 2,584 46,788 COBT-300-1500 300 1,455 1,500,000 92 44-3/4 12 9.09 2,774 49,962 COBT-400-600 411 582 600,000 89 55 8 11.11 3,207 46,952 COBT-400-800 411 776 800,000 89 55 10 11.11 3,212 47,032 COBT-400-1000 411 970 1,000,000 89 55 10 11.11 3,212 49,379 COBT-400-1250 411 1,212 1,250,000 89 55 12 11.11 3,212 50,366 COBT-400-1500 397 1,455 1,500,000 89 55 12 11.11 3,402 53,395 COBT-400-1750 397 1,697 1,750,000 89 55 14 11.11 3,528 54,624 COBT-400-2000 397 1,939 2,000,000 96-1/4 55 14 11.11 3,669 58,678 COBT-600-720 594 698 720,000 114 55 10 14.3 3,667 54,989 COBT-600-1000 594 970 1,000,000 114 55 10 14.3 3,667 56,558 COBT-600-1250 594 1,212 1,250,000 114 55 12 14.3 3,667 58,148 COBT-600-1500 594 1,455 1,500,000 114 55 12 14.3 3,837 59,445 COBT-600-1750 594 1,697 1,750,000 114 55 14 14.3 3,837 60,938 COBT-600-2000 594 1,939 2,000,000 114 55 14 14.3 3,837 62,533 COBT-600-2250 575 2,182 2,250,000 114 55 16 14.3 4,477 63,866 COBT-600-2500 575 2,424 2,500,000 114 55 16 14.3 4,619 66,174 Plant of Manufacture: Renton, Washington OPTIONAL EQUIPMENT Description Add On IRI (400,000 and up only) $2,052 CSD-1 Controls 140 CSA Certified and ASME rated T&P Relief Valve (must be specified at time of order) Consult y COBT Optional Burner Diagnostic System 146 Direct Spark for Oil Ignition 400 46 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Custom Xi Series Heavy-Duty Commercial Electric Water Heaters DSE Models ASME standard Construction kw Input Number of Elements +Not available 208V single-phase. Single phase available in 480V only. * For single-phase, except 208V, add $69. NOTE: For International voltages 346, 380, 415, 550 or 600V, add $69 to price. Recovery @ 100 F Rise Per Hour Height Diameter DSE-5 5 3 1 12 20-1/4 16-1/4 82 $3,001 DSE-10 10 3 1 12 26-1/4 18-3/4 116 3,127 DSE-10 10 6 1 25 26-1/4 18-3/4 116 3,277 DSE-20 20 3 1 12 27-1/4 20-1/2 145 3,269 DSE-20 20 6 1 25 27-1/4 20-1/2 145 3,419 DSE-20 20 9 1 37 27-1/4 20-1/2 145 3,669 DSE-20 20 12 1 49 27-1/4 20-1/2 145 3,819 DSE-20 20 15 1 61 27-1/4 20-1/2 145 3,969 DSE-20 20 18* 1 74 27-1/4 20-1/2 145 4,119 DSE-30 30 6 1 25 35-3/4 20-1/2 150 3,579 DSE-30 30 9 1 37 35-3/4 20-1/2 150 3,729 DSE-30 30 12 1 49 35-3/4 20-1/2 150 3,879 DSE-30 30 15 1 61 35-3/4 20-1/2 150 4,029 DSE-30 30 18* 1 74 35-3/4 20-1/2 150 4,179 DSE-30 30 24 2 98 35-3/4 20-1/2 150 5,279 DSE-40 40 9 1 37 45-3/4 20-1/2 190 3,866 DSE-40 40 12 1 49 45-3/4 20-1/2 190 4,016 DSE-40 40 15 1 61 45-3/4 20-1/2 190 4,166 DSE-40 40 18* 1 74 45-3/4 20-1/2 190 4,316 DSE-40 40 24 2 98 45-3/4 20-1/2 190 5,416 DSE-40 40 30 2 123 45-3/4 20-1/2 190 5,916 DSE-40 40 36* 2 148 45-3/4 20-1/2 190 6,416 DSE-50 50 9 1 37 54-3/4 20-1/2 221 4,455 DSE-50 50 12 1 49 54-3/4 20-1/2 221 4,605 DSE-50 50 15 1 61 54-3/4 20-1/2 221 4,755 DSE-50 50 18* 1 74 54-3/4 20-1/2 221 4,905 DSE-50 50 24 2 98 54-3/4 20-1/2 221 6,005 DSE-50 50 30 2 123 54-3/4 20-1/2 221 6,505 DSE-50 50 36* 2 148 54-3/4 20-1/2 221 7,005 DSE-50 50 45 3 184 54-3/4 20-1/2 221 7,905 DSE-50 50 54+ 3 221 54-3/4 20-1/2 221 8,305 DSE-50 50 60+ 4 246 54-3/4 20-1/2 221 9,705 DSE-50 50 75 5 307 54-3/4 20-1/2 221 11,505 DSE-50 50 90 5 369 54-3/4 20-1/2 221 14,505 DSE-65 65 9 1 37 54 26-1/2 280 4,942 DSE-65 65 12 1 49 54 26-1/2 280 5,092 DSE-65 65 15 1 61 54 26-1/2 280 5,242 DSE-65 65 18* 1 74 54 26-1/2 280 5,392 DSE-65 65 24 2 98 54 26-1/2 280 6,492 DSE-65 65 30 2 123 54 26-1/2 280 6,992 Plant of Manufacture: Renton, Washington SPECIALTY COMMERCIAL ELECTRIC Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 47

SPECIALTY COMMERCIAL ELECTRIC Custom Xi Series Heavy-Duty Commercial Electric Water Heaters DSE Models (continued) kw Input Number of Elements +Not available 208V single-phase. Single phase available in 480V only. * For single-phase, except 208V, add $69. NOTE: For International voltages 346, 380, 415, 550 or 600V, add $69 to price. Recovery @ 100 F Rise Per Hour Height Diameter DSE-65 65 36* 2 148 54 26-1/2 280 $7,492 DSE-65 65 45 3 184 54 26-1/2 280 8,392 DSE-65 65 54+ 3 221 54 26-1/2 280 8,792 DSE-65 65 60+ 4 246 54 26-1/2 280 10,192 DSE-65 65 75 5 307 54 26-1/2 280 11,992 DSE-65 65 90 5 369 54 26-1/2 280 14,992 DSE-80 80 12 1 49 52-1/4 28 285 5,516 DSE-80 80 15 1 61 52-1/4 28 285 5,666 DSE-80 80 18* 1 74 52-1/4 28 285 5,816 DSE-80 80 24 2 98 52-1/4 28 285 6,916 DSE-80 80 30 2 123 52-1/4 28 285 7,416 DSE-80 80 36* 2 148 52-1/4 28 285 7,916 DSE-80 80 45 3 184 52-1/4 28 285 8,816 DSE-80 80 54+ 3 221 52-1/4 28 285 9,216 DSE-80 80 60+ 4 246 52-1/4 28 285 10,616 DSE-80 80 75 5 307 52-1/4 28 285 12,416 DSE-80 80 90 5 369 52-1/4 28 285 15,416 DSE-100 100 15 1 61 60-1/2 28 354 6,234 DSE-100 100 18* 1 74 60-1/2 28 354 6,384 DSE-100 100 24 2 98 60-1/2 28 354 7,484 DSE-100 100 30 2 123 60-1/2 28 354 7,984 DSE-100 100 36* 2 148 60-1/2 28 354 8,484 DSE-100 100 45 3 184 60-1/2 28 354 9,384 DSE-100 100 54+ 3 221 60-1/2 28 354 9,784 DSE-100 100 60+ 4 246 60-1/2 28 354 11,184 DSE-100 100 75 5 307 60-1/2 28 354 12,984 DSE-100 100 90 5 369 60-1/2 28 354 15,984 DSE-120 120 15 1 61 65-1/2 30 420 6,589 DSE-120 120 18* 1 74 65-1/2 30 420 6,739 DSE-120 120 24 2 98 65-1/2 30 420 7,839 DSE-120 120 30 2 123 65-1/2 30 420 8,339 DSE-120 120 36* 2 148 65-1/2 30 420 8,839 DSE-120 120 45 3 184 65-1/2 30 420 9,739 DSE-120 120 54+ 3 221 65-1/2 30 420 10,139 DSE-120 120 60+ 4 246 65-1/2 30 420 11,539 DSE-120 120 75 5 307 65-1/2 30 420 13,339 DSE-120 120 90 5 369 65-1/2 30 420 16,339 Plant of Manufacture: Renton, Washington 48 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Custom Xi Series Heavy-Duty Commercial Electric Water Heaters DSE Models (continued) 208, 240 and 480V Single and 3-Phase optional equipment and construction Option 150 or 160 PSI Working Pressure (65 to 120 Models Only) $172 Modulating Control 394 Handhole Cleanout 214 Combination T&P Gauge 93 Override Switch 32 Pilot Light 32 Alarm Horn 323 High Pressure Limit Switch 293 Low Pressure Limit Switch 293 Power Circuit Fusing (subdivided into 48 amp or less circuits) 3, 6, 9, 12, 15 and 18 kw $84 24, 30 and 36 kw 172 45 AND 54 kw 253 60, 75 and 90 kw 345 manifold kits Package Number 9003429205 9003430205 9003431205 Manifold Kits Description Dual Manifold Kit for DSE-65, 80, 100, 120 Triple Manifold Kit for DSE-65, 80, 100, 120 Quad Manifold Kit for DSE-65, 80, 100, 120 25 $1,131.50 46 $2,390.00 58 $3,007.00 Dura-Power Xi Electric ASME Vertical and Horizontal DVE Models (Vertical) DHE Models (Horizontal) Heaters will be furnished with standard wattages unless otherwise specified. For wattages other than standard, price on request. All heaters can be furnished in single or 3-phase. Please specify voltage and phase when ordering. Advanced Electronic Control - Progressive Modulating 140-150- Tall 150- Short 200-250- Weight 803-908 lbs 858-993 lbs 812-947 lbs 1034-1134 lbs 1120-1250 lbs kw 208/240V 480V 208/240V 480V 208/240V 480V 208/240V 480V 208/240V 480V 15 $17,004 $16,803 $19,124 $18,909 $19,124 $18,909 $21,649 $20,482 $21,516 $21,121 24 18,153 17,420 20,102 19,561 20,102 19,561 20,992 20,616 21,643 21,214 30 18,760 18,158 20,507 19,987 20,507 19,987 20,992 20,616 21,756 21,342 36 19,671 18,489 21,474 20,385 21,468 20,385 21,912 21,396 22,795 21,912 45 20,472 18,970 21,911 21,200 21,912 21,200 22,455 21,603 23,716 22,455 60 21,204 20,291 23,050 21,845 23,050 21,845 24,087 22,857 25,264 24,087 75 23,159 21,959 24,971 23,490 24,971 23,490 26,461 24,938 27,206 26,461 90 24,302 22,663 26,125 24,216 26,125 24,216 27,590 25,671 28,360 27,590 105 26,125 24,425 27,994 25,911 28,061 25,911 29,443 27,364 30,206 29,440 120 27,247 25,117 29,119 26,570 29,119 26,570 30,534 28,000 31,299 28,783 150 - - 31,950 28,558 31,950 28,558 33,364 30,426 33,755 30,787 180 - - - - - - 35,072 34,258 35,768 32,558 210 - - - - - - - - 39,009 35,008 240 - - - - - - - - 42,285 36,783 Plant of Manufacture: Renton, Washington SPECIALTY COMMERCIAL ELECTRIC Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 49

SPECIALTY COMMERCIAL ELECTRIC Dura-Power Xi Electric ASME Vertical and Horizontal DVE Models (Vertical) DHE Models (Horizontal) (Continued) 300-350- 400-500- 600- Weight 1265-1550 lbs 1420-1650 lbs 1600-1900 lbs 1759-2215 lbs 2600-3200 lbs kw 208/240V 480V 208/240V 480V 208/240V 480V 208/240V 480V 208/240V 480V 24 $23,645 $23,155 $25,424 $24,456 $28,700 $27,734 $33,045 $32,367 $38,200 $37,062 30 23,770 23,265 25,530 24,581 28,807 27,849 33,170 32,491 38,331 37,196 36 23,905 23,364 25,655 24,716 28,916 27,970 33,285 32,609 38,448 37,314 45 24,638 23,914 25,781 24,828 29,052 28,099 33,394 32,715 38,572 37,430 60 26,310 25,152 27,316 26,105 30,564 29,359 34,653 33,485 38,677 37,558 75 28,294 26,771 29,260 27,754 32,516 30,446 36,362 34,888 40,401 38,925 90 29,440 27,512 30,400 28,477 33,625 31,729 37,596 35,754 43,461 39,814 105 31,280 29,209 32,241 30,157 35,458 33,446 39,885 38,507 43,908 41,871 120 32,380 29,907 40,041 30,833 36,613 34,114 40,957 38,680 45,005 42,545 150 34,595 31,872 35,837 32,848 39,047 36,093 44,137 40,875 48,170 44,936 180 36,929 33,642 37,851 34,653 41,086 37,886 46,929 43,039 50,932 47,038 210 40,718 35,807 41,673 36,796 44,936 40,017 50,125 39,228 54,088 49,294 240 43,357 37,886 44,332 38,843 47,580 42,105 53,115 47,792 57,058 51,735 270 46,322 40,226 47,282 41,159 50,125 44,037 56,011 50,138 59,912 53,817 300 48,544 42,353 51,896 43,344 50,449 47,725 58,583 52,627 62,461 56,472 330 - - 52,496 45,287 55,347 48,131 61,923 54,983 65,753 58,793 360 - - - - 58,306 50,537 64,505 57,004 68,255 63,332 390 - - - - 61,722 52,848 68,276 59,618 72,034 64,245 420 - - - - - - 70,514 61,914 74,197 65,605 450 - - - - - - 73,239 64,216 76,910 67,830 480 - - - - - - 75,760 66,148 79,382 69,739 510 - - - - - - - - 82,466 72,043 540 - - - - - - - - 85,225 74,063 570 - - - - - - - - 88,027 76,379 600 - - - - - - - - 90,781 78,354 NOTE: Models 2,000 through 10,000 gallon storage capacity, consult factory for prices. Plant of Manufacture: Renton, Washington FOR VERTICAL MODELS: The gallon capacity is preceded by a DVE and followed by the desired kw listed at the end of the model number. (Example: The vertical 500-gallon tank with 120 kw would have a model number DVE 500-120 ). FOR HORIZONTAL MODELS: The gallon capacity is preceded by a DHE and followed by the desired kw listed at the end of the model number. (Example: The horizontal 500-gallon tank with 120 kw would have a model number of DHE 500-120 ). *NOTE: s shown are for vertical (DVE) models. See optional equipment for horizontal (DHE) add-on. OPTIONAL EQUIPMENT: Stainless steel tanks available for deionized water heating. Consult Renton plant. 50 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Dura-Power Xi Electric ASME Vertical and Horizontal DVE Models (Vertical) DHE Models (Horizontal) (Continued) 700-800- 1,000-1,200-1,500- Weight 3000-3500 lbs. 3600-4300 lbs. 4000-4900 lbs. 5400-6000 lbs. 5600-6400 lbs. kw 208/240V 480V 208/240V 480V 208/240V 480V 208/240V 480V 208/240V 480V 24 $40,134 $38,989 $43,678 $41,527 $47,688 $45,855 $53,932 $51,858 $71,741 $68,512 30 40,253 39,093 43,809 41,303 48,043 45,954 54,096 51,962 71,881 68,639 36 40,378 39,212 43,923 42,061 47,919 46,082 54,235 52,078 71,996 68,743 45 40,510 39,321 44,209 42,176 47,804 46,201 54,346 52,327 72,121 68,860 60 40,607 39,461 44,164 42,300 48,153 46,332 54,503 52,411 72,243 68,982 75 42,326 40,847 44,289 42,403 48,281 46,424 54,598 52,451 72,329 69,109 90 43,574 41,762 45,464 43,270 48,396 46,549 54,704 52,547 72,462 72,875 105 44,584 43,000 46,938 44,481 49,831 47,755 54,817 52,660 72,602 69,348 120 47,067 44,619 49,030 45,864 51,888 49,421 56,483 53,616 72,722 69,448 150 50,250 47,011 52,170 48,560 55,065 51,806 59,078 61,168 72,845 71,571 180 53,019 49,131 54,983 50,602 57,846 53,936 61,722 57,853 75,461 71,813 210 56,222 51,338 58,183 52,846 61,041 56,235 64,761 61,441 78,471 73,722 240 59,211 53,907 61,161 55,299 64,033 58,685 67,646 62,329 81,161 76,146 270 62,223 56,268 64,033 57,639 66,926 61,112 70,137 64,562 83,928 78,282 300 64,711 58,817 66,624 60,109 69,510 63,559 72,845 66,899 87,608 81,671 330 68,048 61,090 69,967 62,424 72,860 65,916 76,026 69,116 90,762 83,827 360 70,638 63,103 72,598 65,527 75,400 67,920 78,452 70,982 93,234 85,705 390 74,414 65,373 76,371 67,073 79,186 70,538 82,086 73,487 96,843 88,236 420 76,644 68,046 78,826 69,302 81,349 72,773 84,159 75,638 100,007 91,447 450 79,375 70,314 81,245 71,523 84,077 75,015 86,743 79,051 100,839 93,549 480 81,403 71,766 83,746 73,402 86,558 76,911 89,155 79,539 103,239 95,740 510 84,978 74,596 86,856 75,671 89,618 79,186 92,117 80,975 107,815 97,506 540 87,772 76,657 89,550 77,513 92,393 81,122 94,762 83,644 110,547 99,416 570 90,631 79,009 92,373 79,985 95,174 83,516 97,484 85,888 113,247 101,592 600 93,428 80,511 95,161 80,595 97,928 85,515 100,164 87,724 116,385 103,562 660-86,601-85,911-91,419-91,442-107,699 720 - - - 91,225-96,124-97,423-111,783 810 - - - - - 102,664-103,044-115,870 990 - - - - - 109,921-115,575-121,483 1200 - - - - - - - 127,404-133,442 SPECIALTY COMMERCIAL ELECTRIC NOTE: Models 2,000 through 10,000 gallon storage capacity, consult factory for prices. Plant of Manufacture: Renton, Washington FOR VERTICAL MODELS: The gallon capacity is preceded by a DVE and followed by the desired kw listed at the end of the model number. (Example: The vertical 500-gallon tank with 120 kw would have a model number DVE 500-120 ). FOR HORIZONTAL MODELS: The gallon capacity is preceded by a DHE and followed by the desired kw listed at the end of the model number. (Example: The horizontal 500-gallon tank with 120 kw would have a model number of DHE 500-120 ). *NOTE: s shown are for vertical (DVE) models. See optional equipment for horizontal (DHE) add-on. OPTIONAL EQUIPMENT: Stainless steel tanks available for deionized water heating. Consult Renton plant. Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 51

COMMERCIAL SOLAR Dura-Power Xi Electric ASME Vertical and Horizontal DVE Models (Vertical) DHE Models (Horizontal) OPTIONAL EQUIPMENT AND CONSTRUCTION Option Goldenrod Elements (price per element) $124 Horizontal Construction 200 thru 500-gallons add $957 600 thru 800-gallons add 1,075 1000 thru 1500-gallons add 1,215 ASME 150 or 160 PSI Construction 125 thru 500-gallons add $219 600 thru 500-gallons add 273 1000 thru 1500-gallons add 659 3 1/2" dial-type temperature gauge 119 3 1/2" dial-type pressure gauge 119 Additional thermostats (max. 1 per contactor) each 84 Additional contactors (max. 1 per element) each 117 Automatic Reset High Limit Temperature Control 100 Terminal for Remote Monitoring or Control each 28 Two or Three-Stage Time Delay Sequencer (max.1 per contactor) 219 Four or Five Stage Time Delay Sequencer (max. 1 per contactor) 286 Time Clock Seven Day 233 Alarm, Bell or Horn 296 Secondary Heat Source Water to Water or Steam to Water Heating Coil Consult Renton Plant Consult Renton Plant Safety Door Interlock 290 4" x 6" Handhole Cleanout (Std on 500 700-gallon) 200 11" x 15" Manhole (Std on 800-gallon and larger) 599 Override Switch per Step 47 Indicating Light per Step 47 Integral Circulation Pump System 999 Aux. Electric Low Water Cutoff (Man. Reset Probe) 227 Optional Corrosion Protection Linings - Cement or Epoxy 200 thru 500-gallons (incl. 11" x 15" manhole) $1,015 600 thru 800-gallons 1,671 1000 thru 1500-gallons 2,266 Shunt Trip Circuit Breaker Consult Renton Plant ASME ORDERING INFORMATION 125 THROUGH 10,000 GALLON SYSTEMS specifications for ordering should include the following information: 1. Model number 2. capacity 3. Wattage in kilowatts 4. Voltage and phase number and size of power leads per phase, diameter and number of conduits should be noted on high kw units 5. List all desired options 52 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Dura-Power Booster CMC and SU Models CMCD/SUD models available with stainless steel tanks for deionized water and water heating. Consult factory for price. CMC models can be shipped overnight or second day air from factory on request. Consult factory for price. kw Input No. of Elements Recovery @ 40 F Rise Per Hour Height (Inches) Width Depth Hi Cube Trailer Load Approximate CMC-6 5 6 1 62 13-3/4 13 23-1/2 0.24 82 $2,363 CMC-9 5 9 1 92 13-3/4 13 23-1/2 0.24 84 2,426 CMC-12 5 12 1 123 13-3/4 13 23-1/2 0.24 86 2,581 CMC-15 5 15 1 154 13-3/4 13 23-1/2 0.24 88 2,672 CMC-18+ 5 18 1 184 13-3/4 13 23-1/2 0.24 99 2,799 CMC-24 5 24 2 246 12 18 23-1/2 0.24 99 3,591 CMC-30 5 30 2 307 12 18 23-1/2 0.24 99 4,026 CMC-36+ 5 36 2 369 12 18 23-1/2 0.24 113 4,074 CMC-45 5 45 3 461 12 18 23-1/2 0.24 113 4,458 CMC-54* 5 54 3 554 12 18 23-1/2 0.24 113 4,754 SU-6 20 6 1 62 25 22-1/4 23 0.57 200 3,371 SU-9 20 9 1 92 25 22-1/4 23 0.57 200 3,526 SU-12 20 12 1 123 25 22-1/4 23 0.57 200 3,661 SU-15 20 15 1 154 25 22-1/4 23 0.57 204 3,695 SU-18+ 20 18 1 184 25 22-1/4 23 0.57 204 3,792 SU-24 20 24 2 246 25 22-1/4 23 0.57 215 4,660 SU-30 20 30 2 307 25 22-1/4 23 0.57 215 4,823 SU-36+ 20 36 2 369 25 22-1/4 23 0.57 215 5,004 SU-45 20 45 3 461 25 22-1/4 23 0.57 220 5,329 SU-54* 20 54 3 554 25 22-1/4 23 0.57 220 5,793 208, 220, or 240V single-phase models are convertible to three-phase. SU three-phase models are not convertible, CMC three-phase are not convertible above 24kW. +For 208V 18kW add 36kW add $145 +For international voltages 346,380 or 415 and $ 145.00 all heaters. *Not available 208V single phase. OPTIONAL EQUIPMENT Description Add On Goldenrod Elements ( Per Element) $124 Stainless Steel Jacket SU Models 6-54 kw 265 Electric Low Water Cutoff 62 Pilot Light 30 Override Switch 30 Shock Absorber 64 10003181 Undercounter Mounting Plate (CMC models only) 29 Plant of Manufacture: Renton, Washington SPECIALTY COMMERCIAL ELECTRIC Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 53

Solar Thermal Collectors 10-Year Collector Limited Warranty Proudly partnered with Chromagen to provide solar thermal collectors SOLAR COLLECTORS (BULK) Part Number Collector Size (ft) Model Number 9910008000 4' x 8' CR-130-AP 9910009000 4' x 10' CR-140-AP Absorber Plate Aluminum w/ Black Selective Coating Aluminum w/ Black Selective Coating Riser Tube Diameter (Inches) All collectors are SRCC certified OG-100 Collectors can be ordered in bulk or individually Thermal Performance Collectors Per Pallet Hi Cube Trailer Load 0.625 32,000 Btu/day 7 5.56 864 $7,975 5/8 40,000 Btu/day 7 6.67 1,087 9,518 COMMERCIAL SOLAR SOLAR COLLECTORS (INDIVIDUAL) Part Number Collector Size (ft) Model Number Absorber Plate Maximum Collectors Per Package Hi Cube Trailer Load 1 Collector Pkg. 2 Collector Pkg. 3 Collector Pkg. 9910012000 (1-Collector) Aluminum w/ 8.33 220 $1,769 4' x 8' CR-130-AP Black Selective 1-2 9910013000 (2-Collector) Coating 8.33 340 3,285 9910014000 (1-Collector) Aluminum w/ 10 275 1,968 4' x 10' CR-140-AP Black Selective 1-2 9910015000 (2-Collector) Coating 10 425 3,665 Notes: 1) Solar collectors are included with all Deluxe and Standard Solar System packages. 2) Solar collectors ordered in bulk or individually do not include Fastener Kits that are required for all installations. These are ordered separately. See part number 9910052000 in the Miscellaneous Items table on page 22. 3) Thermal performance ratings are according to SRCC OG-100 certification data category C, clear day conditions. 4) Rebate Program does not apply to this category. A. O. Smith makes hot water storage tanks for all types of water heating applications. For solar hot water storage tanks contact customer service at our Renton, Washington plant. A. O. Smith offers solar storage tanks with both standard solar openings and custom solar tanks with special tank openings and heat exchangers to match your individual solar application. 54 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

XP High Efficiency Condensing Circulating Water Heaters XWH Models - Pump Mounted BTU/HR Natural Gas Input Recovery @ 100 F Rise Per Hour Intake Size Vent Size Weight (lbs) XWH-1000 920,000 1,037 6 6 865 $23,150 XWH-1300 1,300,000 1,465 6 8 1,065 28,207 XWH-1700 1,700,000 1,916 8 8 1,140 33,184 XWH-2000 2,000,000 2,255 8 8 1,485 38,840 XWH-2600 2,600,000 2,931 8 8 1,830 51,252 XWH-3400 3,400,000 3,833 10 10 2,175 65,038 Authorized start-up service included required to activate warranty. (Continental U.S. Only). Plant of Manufacture: McBee, South Carolina Specify natural gas or propane. ** Note: The standard factory supplied pump is sized for 50 equivalent feet of piping between the boiler and the storage tank. For applications where the storage tank will be installed at a distance that exceeds the capabilities of the factory supplied pump, order less pump, and contact your local A. O. Smith Sale Representative for assistance in sizing a custom pump to be field installed that meets your specific application. Pumps 1-1/2 hp or less can be connected directly to the heater. Pumps greater than 1-1/2 hp must be connected with field supplied and installed relay between water heater and pump. Optional Condensate Neutralization Kits available. See page 28 for more information. approved vent terminations Model Number Pipe Size (Inches) Exhaust/Vent Terminations (PVC) Vertical (PVC Rain Cap) Part # Horizontal (PVC Tee w/ Screens) XWH-1000 6 320884-000 $310 321765-000 $89 XWH-1300 XWH-1700 XWH-2000 XWH-2600 8 320884-001 341 321765-001 183 XWH-3400 10 320884-002 425 321765-002 508 NOTE: The vent terminations for direct/sealed vent systems must be provided by A. O. Smith or an approved supplier. This is a CSA requirement. optional equipment Description Add On Deduct for Less pump XWH-1000 thru XWH-1700 $650 Deduct for Less pump XWH-2000 thru XWH-3400 1,200 CSD-1 NY Code California Code STD STD STD approved intake terminations Models NOTE: The vent terminations for direct/sealed vent systems must be provided by A. O. Smith or an approved supplier. This is a CSA requirement. optional equipment AIR INTAKE TERMINATION (PVC) Pipe Size Kit Numbers (Elbow) Add On XWH-1000 6" 321764-000 $67 XWH-1300 6" 321764-000 67 XWH-1700 XWH-2000 XWH-2600 8" 321764-001 121 XWH-3400 10" 321764-002 535 Alarm Bell Description Modbus Building Management Interface Low Water Cutoff Add On STD STD STD SPECIALTY COMMERCIAL GAS XP Ac-U-Temp y Assembled Domestic Hot Water Systems Description With TJV-120A Vertical Storage Tank(s) With Vertical Storage Tank(s) AJV-140A and Larger** With Horizontal Storage Tank** *Add $900 for each additional Water Heater. Add $900 for each additional Storage Tank. **Larger systems may ship in two or more pieces. Specify the desired Water Heater and Tank configuration when placing order and any local code requirements. Ac-U-Temp Systems are not available with TJ-80 s, TJV-120M or TJV-200M model Storage Tanks. of XWH Water Heater(s) + of Tank(s) + $900* = Total of System of XWH Water Heater(s) + of Tank(s) + $1,900* = Total of System of XWH Water Heater(s) + of Tank(s) + $2,400* = Total of System Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 55

VF Variable Fire Circulating Water Heater VWH Models BTU/HR Natural Gas Input Recovery @ 100 F Rise Per Hour Vent Size Air Intake Size Load VWH-500N 500,000 527 4 5 2.78 573 $8,683 VWH-750N 750,000 791 5 5 2.78 622 11,531 VWH-1000N 999,999 1,054 6 6 2.78 671 13,737 VWH-1500N 1,500,000 1,582 6 6 2.78 1,117 17,932 VWH-2000N 2,000,000 2,109 8 8 2.78 1,186 20,266 Authorized start-up service included required to activate warranty. (Continental U.S. Only). Primary Point: Ashland City, TN Change N to P when ordering Propane (Example VWH-750P). ** Note: The standard factory supplied pump is sized for 50 equivalent feet of piping between the water heater and the storage tank. For applications where the storage tank will be installed at a distance that exceeds the capabilities of the factory supplied pump, order VW water heater less pump, and contact your local A. O. Smith Sale Representative for assistance in sizing a custom pump to be field installed that meets your specific application. Pumps 1hp or less can be connected directly to the water heater. Pumps greater than 1hp must be connected with field supplied and installed relay between water heater and pump. Optional Condensate Neutralization Kits available. See page 72 for more information. SPECIALTY COMMERCIAL GAS FIRING AND CONTROL SYSTEMS Part Number 9007563005 9006905005 Description Modulating Fire 4:1 Turndown California Code and Low-NOX (See notes below.) Sequencing Control Panel Tekmar 275 Control can manage 1 to 4 modulating water heaters with 0 to 10 volt signal (has set point for domestic hot water heating systems) Quad Thermistor Tank Temperature Probe (allows for the connection of 2, 3 or 4 water heaters to a storage tank using a single 3/4 opening) Add On Standard N/C $2,045 NOTE: Please make note For California when placing the order. VF models VWH2000 shipping to California will have 1,999,999 BTU Input. VF models are certified as water heaters and are exempt from CSD1 / FM / GE Gap All models approved for Canada. 129 FACTORY INSTALLED OPTIONS Description Add On Alarm Bell $203 High & Low Gas Pressure Switch w/manual Reset 210 Low Water Cut-Off (Probe Type Manual Reset w/test) Deduct for less pump: 221 Models VWH-1500 and 2000-467 Models VWH-500 thru 1000-621 CUPRO-NICKEL HEAT EXCHANGER Add On VWH-0500 $449 VWH-0750 621 VWH-1000 793 VWH-1500 1,453 VWH-2000 1,909 56 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

VF Variable Fire Circulating Water Heater VWH Models (Continued) OPTIONAL VENTING EQUIPMENT category IV to category II vent adaptor for converting a cat. IV water heater to cat. II for the purpose of common venting multiple units Part Number Vent Size (Inches) Add On 9910116000 VWH-0500 4 to 7 $215 9910116001 VWH-0750 5 to 9 269 9910116002 VWH-1000 6 to 10 306 9910116003 VWH-1500 6 to 8 234 9910116004 VWH-2000 8 to 10 285 Vent Increaser combustion air intake termination sidewall air inlet cap (cat I, II or IV) Part Number Air Intake Size (Inches) Add On 9910117000 VWH-0500 5 $30 9910117000 VWH-0750 5 30 9910117002 VWH-1000 6 36 9910117002 VWH-1500 6 36 9910117004 VWH-2000 8 45 sidewall vent termination Part Number Vent Size (Inches) horizontal direct vent sidewall air inlet cap & vent termination Add On 9910118000 VWH-0500 4 $271 9910118001 VWH-0750 5 309 9910118002 VWH-1000 6 321 9910118002 VWH-1500 6 321 9910118004 VWH-2000 8 391 Part Number Air Intake Size (Inches) Vent Size (Inches) Add On 9910119000 VWH-0500 5 4 $303 9910119001 VWH-0750 5 5 342 9910119002 VWH-1000 6 6 357 Air Intake Cap Vent Cap SPECIALTY COMMERCIAL GAS 9910119006 VWH-2000 8 8 435 Air Intake Cap Vent Cap VF Ac-U-Temp y Assembled Domestic Hot Water Systems Description With TJV-120A Vertical Storage Tank(s) With Vertical Storage Tank(s) AJV-140A and Larger** With Horizontal Storage Tank** of VW Water Heater(s) + of Tank(s) + $900* = Total of System of VW Water Heater(s) + of Tank(s) + $1,900* = Total of System of VW Water Heater(s) + of Tank(s) + $2,400* = Total of System *Add $900 for each additional water heater. Add $900 for each additional storage tank. **Larger systems may ship in two or more pieces. Specify the desired water heater and tank configuration when placing order and any local code requirements. Ac-U-Temp Systems are not available with TJ-80 s, TJV-120M or TJV-200M model Storage Tanks. Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 57

Burkay Genesis Circulating Water Heaters GHW-400 Through GHW-2100 Input MBH Recovery @ 100 F Rise Per Hour Vent/Intake Connections (Inches) Load Weight (lbs) GWH-400N 399 412 6 1.01 454 $7,181 GWH-500N 500 515 6 1.19 467 8,072 GWH-650N 650 670 8 1.58 551 8,567 GWH-750N 750 773 8 1.58 611 8,972 GWH-1000N 990 1,020 10 3.33 843 10,399 GWH-1250N 1,260 1,298 12 3.33 939 12,112 GWH-1450N 1,440 1,484 12 3.33 1,035 13,093 GWH-1800N 1,800 1,855 12 or 14 5.00 1,168 14,165 GWH-2100N 2,070 2,133 12 or 14 5.00 1,285 18,019 Authorized start-up service included required to activate warranty. (Continental U.S. Only) When ordering Propane Change N to P in model number. (Example GWH-750P). All Genesis models are certified as water heaters and are exempt from CSD1 / FM / GE Gap All Genesis models are approved for Canada Primary Point: Ashland City, TN SPECIALTY COMMERCIAL GAS Burkay Genesis Ac-U-Temp y Assembled Domestic Hot Water Systems Description With TJV-120A Vertical Storage Tank(s) With Vertical Storage Tank(s) TJV-140A and Larger** With Horizontal Storage Tanks** *Add $900 for each additional boiler; Add $900 for each additional storage tank. **Larger systems may ship in two or more pieces. Specify the desired boiler and tank configuration when placing order, and any local code requirements. Ac-U-Temp Systems are not available with TJ-80 s, TJV-120M or TJV-200M model storage tanks. Burkay Genesis Water Heater Options & Accessories GWH-400 Through GWH-2100 FIRING AND CONTROL SYSTEMS Part Number 9005408105 9006905005 Description California Code and Low-NOx. For California when placing the order: Genesis models GWH-2100 shipping to California will have 1,999,999 BTU input. Tekmar 268 Control can manage four 2-stage water heaters, includes remote tank temperature sensor well (has fixed set point for domestic hot water heating systems) Quad Thermistor Tank Temperature Probe (allows for the connection of 2, 3 or 4 water heaters to a storage tank using a single 3/4" opening) CUPRO-NICKEL HEAT EXCHANGER of GWH Genesis Water Heater(s) with Pump + of Tank(s) + $900* = Total of System of GWH Genesis Water Heater(s) with Pump + of Tank(s) + $1,900* = Total of System of GWH Genesis Water Heater(s) with Pump + of Tank(s) + $2,400* = Total of System Add On GWH-400 thru 750 $380 GWH-1000 thru 2100 628 Add On N/C $3,470.50 129 FACTORY INSTALLED OPTIONS Description Add On Alarm Bell $204 High & Low Gas Pressure Switch w/ Manual Reset y Installed Dry Contacts for Any Boiler Failure/Alarm and Run Time Contacts Deduct for less pump: 210 STD Models GWH-500 thru 750 -$510 Models GWH-1000 thru 2100-678 58 Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com

Burkay Genesis Water Heater Options & Accessories GWH-400 Through GWH-2100 (continued) combustible floor shield Part Number Add On 9910107000 GWH 400 $103 9910107001 GWH 500 112 9910107002 GWH 650 127 9910107003 GWH 750 136 stack rack Part Number Weight (lbs) Add On 9910108000 GWH 400-500 83 $664 9910108001 GWH 650-750 132 722 9910108002 GWH 1000 170 962 9910108003 GWH 1250-1450 214 1,109 9910108004 GWH 1800-2100 251 1,170 OPTIONAL VENTING EQUIPMENT outdoor installation outdoor vent camp and pump cover Part Number vertical venting/roof top deducted intake kit includes: rooftop air inlet cap and vertical dv box adapter (mounts to water heater) vertical venting w/sidewall ducted air intake includes: air inlet cap for sidewall termination and horizontal dv box adapter (mounts to water heater) sidewall vent includes: sidewall vent termination Add On 9910109000 GWH 400-500 $355 9910109001 GWH 650-750 411 9910109002 GWH 1000 479 9910109003 GWH 1250 515 9910109004 GWH 1450 534 9910109005 GWH 1800-2100 552 Part Number Add On 9910111000 GWH 400-500 $220 9910111001 GWH 650-750 254 9910111002 GWH 1000 277 9910111003 GWH 1250-2100 291 Part Number Add On 9910113000 GWH 400-500 $120 9910113001 GWH 650-750 127 9910113002 GWH 1000 147 9910113003 GWH 1250-2100 154 Part Number Add On 9910115000 GWH 400-500 $188 9910115001 GWH 650-750 260 power sidewall powered vent termination Part Number Add On 9910110000 GWH 400-500 $746 9910110001 GWH 650-750 995 9910110002 GWH 1000 1,569 9910110003 GWH 1250-1450 1,581 9910110004 GWH 1800-2100 2,088 sidewall/power venting w/ducted air includes: power venter, air inlet cap for sidewall termination and horizontal dv box adapter (mounts to water heater) Part Number Add On 9910112000 GWH 400-500 $844 9910112001 GWH 650-750 1,109 9910112002 GWH 1000 1,716 9910112003 GWH 1250-1450 1,727 9910112004 GWH 1800-2100 2,242 sidewall direct vent kit (category iv) includes: sidewall vent termination, air inlet cap for sidewall termination and horizontal dv box adapter (mounts to water heater) Part Number Add On 9910114000 GWH 400-500 $146 9910114001 GWH 650-750 177 9910114002 GWH 1000 235 9910114003 GWH 1250-1450 238 9910114004 GWH 1800-2100 559 SPECIALTY COMMERCIAL GAS Customer Service phone: 800.845.1108 fax: 800.634.3097 email: ordersaos@hotwater.com 59