CONTENTS Refrigerators... ~ USE IT W1SEl.Y. THE POWER IS IN YOUR HANDS.

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3 .. CONTENTS Introduction Refrigerators ~ Freezers... -.A!-- THE POWER IS IN YOUR HANDS. USE IT W1SEl.Y. Clothes Washers and Dishwashers.... ~...9 Water Heaters ll Room Air Conditioners I4 Central Air Conditioners , Central Heat Pumps Gas Furnaces and Boilers....,...20 Oil Furnacesand Boilers Comparison Shopping and Lifecycle Costs For Morelnformation The Most Energy-Efficient Appliances-1991 Edition 1991 by the American Council for an Energy-Efficient Economy, Washington, D.G.

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5 INTRODUCTION The Importance of Energy-Efficient Appliances Using appliances and heating and cooling equipment costs an average household more than $1000 per year. You can sharply reduce your own energy bill by using high-efficiency appliances and space conditioning equipment. Highly efficient appliances may be slightly more expensive to buy than comparable models with lower or average efficiencies. However, the extra first cost for a more efficient appliance is paid back through reduced energy bills long before the product wears out. Energy-efficient appliances also have a positive effect on the national economy and the environment. The efficient use of oil, gas, and electricity cuts petroleum imports, improves US. economic competitiveness, and reduces the environmental degradation associated with energy production and use. One-third of the electricity produced in the U.S. is consumed in our homes. Refrigerators alone use the equivalent of the output of over 20 large nuclear power plants-about 5% of the nation s total electricity consumption. If all the households in the US. had the most efficient refrigerators currently available, the electricity savings would eliminate the need for about 10 large power plants! National Appliance Efficiency Standards On March 17, 1987, President Reagan signed into law the National Appliance Energy Conservation Act of This law established minimum efficiency standards for major home appliances and heating and cooling equipment. The standards for clothes washers and dishwashers took effect January 1, 1988, requiring a cold water rinse option on new models. The standards for most other appliances took effect on January 1, The standards for central air conditioners and furnaces will not take effect until 1992, because it will take longer to make the necessary changes in these larger products. We estimate that these standards will save consumers at least $28 billion over the lifetimes of the products sold through the year 2000, or about $300 per household. Furthermore, the standards will reduce peak electricity demand by the equivalent of 25 large power plants. Even though the standards eliminate the production of energy-guzzling appliances, consumers can still benefit from selecting highly-efficient appliances that significantly exceed the national appliance efficiency standards. These high efficiency appliances provide the opportunity to achieve substantial energy savings. Appliances are still available over a broad range of efficiencies, and consumers would be wise to shop carefully 1

6 for efficient models. After all, the air conditioner, furnace, or refrigerator you buy today will still be in use 15 or 20 years from now. Utility Rebate Programs Some utilities offer rebates to consumers who purchase energy-efficient appliances. Rebates reduce the net purchase price of high-efficiency models, making them even more attractive to consumers. By offering incentives for the purchase of high-efficiency equipment, utilities are buying energy supplied through conservation at a lower cost than through traditional means, such as building new power plants. Rebates are most common on high-efficiency heat pumps and central air conditioners. Rebates on room air conditioners and water heaters are also sometimes available. Rebate programs are more common among electric companies than gas companies, although some gas utilities offer rebates for high-efficiency furnaces and other products. If you plan to buy a major appliance soon, ask your utility if they offer rebates for efficient models. The Information in this Booklet This booklet lists, to the best of our knowledge, the most energy-efficient residential appliances available in the US. as of July, Because of space limitations, only the very highest-rated models are listed within each appliance category. The models listed here represent fewer than 5% of all the different models currently available. Many more appliances are above average in terms of efficiency, but space limitations prevent us from listing them all. Our lists are based on information in the most recent product directories published by the appliance industry associations. We have tried to include highly efficient models not listed in the directories where information is available. However, we only include models that are mass-produced and widely-distributed in the US. Also, we only include products for which there are standardized efficiency ratings. Therefore, this booklet does not cover ranges, ovens, clothes dryers, solar water heaters, wood stoves, tankless water heaters, portable space heaters, or air-to-air heat exchangers. 1 The efficiency ratings are based on the standardized tests that manufacturers are required to conduct on their products. The same test ratings are used on the yellow EnergyGuide labels now required for most home appliances. The lists of refrigerators, freezers, clothes washers, and dishwashers include the estimated annual energy cost as it appears on the most recent EnergyGuide labels. The base price of energy (such as the cost per kilowatt-hour of electricity) used to determine the price on the EnergyGuide labels has changed in recent years. Some labels based on the older, cheaper cost can still be found in showrooms. Therefore, when comparing EnergyGuide labels, use the same energy price.

7 The lists of furnaces, boilers, water heaters, air conditioners and heat pumps include their efficiency ratings instead of estimated energy use and cost. The energy use for these appliances varies greatly from house to house depending on climate, family size, and other factors. But the efficiency rating is a good indicator of relative energy use and operating cost-the higher the efficiency, the lower the energy use and operating cost. We realize that energy performance is one of several important criteria for selecting home appliances. We do not collect information on product reliability and other concerns. However, energy-efficient appliances are generally high quality products due to the better materials and components used in their construction. The model numbers in this booklet are used by manufacturers in their product directories. In some cases, appliance dealers use abbreviated model numbers (for example, dropping the first number or letter). An asterisk (*) appearing in a model number indicates a digit or letter that varies with features of the appliance not affecting efficiency and capacity (for example, color). How to Use This Information When you buy an appliance, you pay more than just the sales price-you commit yourself to paying the cost of running the appliance for as long as you own it. These energy costs can add up. For example, running a refrigerator for years typically costs three times as much as the initial price of the refrigerator. The sum of the purchase price and the energy costs of running an appliance over its lifetime is called its lifecycle cost. The lifecycle costs of energy-efficient appliances are typically lower than the lifecycle costs of average models. Worksheets for comparing the lifecycle costs of different models of appliances are provided on page 27 of this guide. When shopping for major appliances, you may want to call several stores or dealers to check the price and availability of different models. Ask the salesperson for information about the efficiency of each model. The yellow EnergyGuide labels can help you compare similar models. We recommend that you disregard the ranges listed on the EnergyGuide labels, since they have not been updated for some time. In comparison shopping, use only the information given for the particular models you are considering. If you cannot find some of the models listed in this guide, you can still use the information in this booklet to your advantage. Compare the efficiencies of the models you can find to those listed here. The models listed in this booklet represent a very small fraction of all the new appliances now available; you may find products that just missed getting listed in this edition. 3

8 REFRlG ERATORS The energy efficiency of refrigerators has improved considerably over the past fifteen years. A typical new refrigerator with automatic defrost and a top-mounted freezer uses about 1000 kwh per year, whereas the typical model sold in 1973 used about 2000 kwh per year. The 1990 National Appliance Efficiency Standards specify the maximum electricity consumption allowed by refrigerators, according to volume and features. On average, the 1990 standards result in a 343% improvement in average efficiency over 1989 and earlier models. An even greater jump in efficiency will occur in 1993 when the next phase of the standards take effect. The models listed below are grouped by door style, defrosting capability and volume. Models are listed within each group in order of increasing electricity use. If two different sized refrigerators use the same amount of electricity per year, the larger model would be considered more efficient because it keeps more space cold with the same amount of electricity. The energy costs shown below are based on an electricity price of 8 cents per kwh. Your actual energy cost may differ depending on the price of electricity in your area and how you use the refrigerator. I Annual energy cost Brand Model Volume Single door, manual defrost, 10.5 to 14.4 cubic feet Frigidaire D-l3P Kelvinator SSXl30EM1* White-Westinghouse RC131 LVO White-Westinghouse RC131 LL'O Kenmore *O Sanyo SR General Electric TAl 1 s' Hotpoint SSDllCK Kenmore 83810' Top freezer, partial automatic defrost, 12.0 to 16.4 cubic feet Sun Frost' RF Sun Frost' RF General Electric TB15SL Hotpoint Magic Chef Magic Chef Kenmore Kenmore Frigidaire Frigidaire White-Westinghouse White-Westinghouse 4 CTA 15CL RB15E-1 P RBI 5G * FCD-14TP-0 FCD-l4TF*-1 RT142GC*5 RT142GL*

9 ~~ Brand Kelvinator Kenmore Kenmore Kenmore White-Westinghouse Frigidaire Frigidaire Gibson White-Westinghouse White-Westinghouse Frigidaire Kelvinator Gibson Gibson Kenmore Philco Philco Philco TaDDan Tappan Tappan TaDDan.. Frigidaire Frigidaire Frigidaire Frigidaire Friaidaire Frigidaire Frigidaire Frigidaire Frigidaire Gibson Gibson Philco Philco White-Westinghouse White-Westinghouse White-Westinghouse White-Westinghouse White-Westinghouse White-Westinahouse MOST EFFICIENT REFRIGERATORS (cont.) Annual energy cost Model Volume kwhlyr 68plkWh Top freezer, automatic defrost, 14.5 to 16.4 cubic feet TPK160BNP ' * ** to 18.4 cubic feet RTl7*MC'O FP'-17TF'-O FPD-l7TIF'-* RT17F**U3' RTl74LC'l RTl74ZC*1 FPCI-l8TIE*-I TPK 180ZN1* RTl7F**T3' RT17F7'P3A ** PGTN17**A' PRD17A61** YPRD17A61* ** *' ** ** to 20.4 cubic feet FPCE-l9TF'-O FPCI-l9TF* FPCI-l9TIF*-O FPCI-l9TIF*-l FPD-l9TF*-O FPE-l9TF* FPE-19TIF' FPES-l9TF* FPZ-l9TF*-O RT19F*U RT19F9*V3B PGTN198'AO PGTNl98*A1 RTl93MC*0 RT194ZC'l RTl95MC*0 RT196MC** RT197MC*0 RT199MC'* This brand available by special order from Sun Frost (Arcata, California) only. 5

10 ~ MOST EFFICIENT REFRIGERATORS (cont.) Annual energy cost Brand Model Volume 20.5 to 24.4 cubic feet General Electric TBX22ZL Hotpoint Kenmore Kenmore General Electric CTX22GL 87927* 86927* TBX21 *L Hotpoint Hotpoint Kelvinator Gibson CTX21 *L MTX21*M 96017'0 RT21 F7*SB' Gibson RT21 F6'T3' Kelvinator 97017' Kenmore 83812* Kenmore 86515* Kenmore ** Kenmore 86912" Kenmore 86915* Kenmore 87515' Kenmore ' Kenmore ' Kenmore 87912* Kenmore 87912* Kenmore 87915* Kenmore 93012* Kenmore 93017' Kenmore ' Philco PRD21A61 *O Philco TPRD21 A61 *O Philco PGTN21 **A Philco RD21 LbMRO Tappan " White-Westinghouse RT21 *JC** White-Westinghouse RT21 *MC" Frigidaire FPCE-21 TF*-* Frigidaire FPCI-21TIF'-* Frigidaire FPCE-21TIF*-O Frigidaire FPCE-21 TIL*-* Frigidaire FPCI-21TF'-* Frigidaire FPE-21TF'-* Frigidaire FPS-21TL*-* Frigidaire FPZ-21TF'-* Gibson RT21 F6'W Kelvinator TMK206ENl Kelvinator TS1206EN2* Kelvinator TSK206EN**

11 ~ MOST EFFICIENT REFRIGERATORS (cont.) Annual energy cost Brand Model Volume kwh/yr 88flkWh Side-by-side freezer, automatic defrost 18.5 to 20.4 cubic feet Amana w20* Amana Amana Maytag RS'20A Admiral NS20L Crosley CNS20V Jenn-Air JRS Magic Chef RC20K'-2A Montgomery Ward HMG Montgomery Ward HMG21* Norge NNS207K Norge NNS208K Amana SCI9J Whirlpool ED20AK*S*lt WhirlDool ED20HK*W'O* Whirlpool ED20PK*S*l' Whirlpool ED20PK'WO* Whirlpool ED20ZK'W*O* Kenmore 8490*** Kenmore 94000** Kenmore 95104** Frigidaire Maytag Amana Amana Amana General Electric General Electric Hotpoint RCA Maytag Whirlpool Whirlpool General Electric Frigidaire Maytag Amana Amana Amana Amana Amana Amana 20.5 to 22.4 cubic feet FPCIS-22VL*-O RSD22A SC22J SX22J SL22JB TFX22DL TFX22ZL CSXH22GL MSX22GL RSW22A ED22PK*S*O' ED22PM*S*0 TFXH22KL 22.5 to 26.4 cubic feet FPCE-24VP-0 RSD24A SC25J SC25JP SL25J SX25J NOTE: Models are ranked according to their relative efficiency, as determined by the cubic feet of refrigerated space divided by the annual energy consumption. 7

12 The energy efficiency of freezers has improved over the past decade, though at a slower rate than refrigerators. Like refrigerators, the national standards for freezers took effect in Annual Energy kwh Brand Model Volume 7.7ClkWh Yr Upright freezer, manual defrost, 10.0 to 15.4 cubic feet Sun Frost* F Amana ESUl3D to 17.4 cubic feet White-Westinghouse FUl68LRW Amana ESU15D Amana ESU17D to 21.4 cubic feet Sun Frost* F Coronado UG21 A Frigidaire UF-21 N-L*l General Electric CA21 DL-D Gibson FV21 M2WSFG Gibson FV21 M8WSFE Gibson FV21 M9WXFA Hotpoint FV2I CL-D Imperial UG21A Imperial UL2164ECWl Imperial UL2483ECW Kelvinator UFP212FM3W Marquette UG21 A Montgomery Ward FFT Tappan White-Westinghouse FU211 LRW White-Westinghouse FU218LRW Whirlpool EV19OF*S*O Whirlpool EV19OF*W*O Friaidaire UFSl9N-L' General Electric CAI 9DL-D Gibson FVI 9M8WWFC Hotpoint FV19CL-D Imperial UC2075ECWl' Kenmore Montgomery Ward FFT White-Westinghouse FUl96LRW3 Wood's *U ~ *This brand available by special order from Sun Frost (Arcata, Calif.) only.

13 , Brand MOST EFFICIENT FREEZERS (cont.) Annual Energy kwh Model Volume 7.7elkWh Yr Chest freezer, manual defrost, 13.5 to 17.4 cubic feet Admiral C17HE Crosley C17HE Magic Chef C17HE Admiral C15HS Crosley C15HS General Electric CB15DL Hotpoint FH15CL Magic Chef C15HS Whirlpool EH15OF*V*O* Wood s *C General GC to 23.4 cubic feet Admiral C20HE Crosley C20HE Magic Chef C20HE Admiral C22HS Crosley C22HS Magic Chef C22HS Whirlpool EH220F*V*0* Wood s *C General GC DISHWASHERS AND CLOTHES WASHERS Most of the cost of running dishwashers and clothes washers is for heating water. Therefore, an efficient water heater helps reduce the costs associated with these appliances. The annual energy costs shown below are based on a typical electric water heater and an electricity price of 7.7 cents/ kwh (the prices used on the most recent yellow EnergyGuide labels). 9

14 J Brand MOST EFFICIENT DISHWASHERS Annual Energy Pre- Model kwhlcvcle 7.7elkWh heat Standard (holding more than 8 place settings) A.E.G. Favorit Y In-Sink-Erator Classic Y Supreme Caloric DCS Y Caloric DUS Y Modern Maid DDW Y Modern Maid DDWl Y Caloric DUS Y Modern Maid DDWl Y Frigidaire DW1 OOD Y Gibson SU24P Y Gibson SU24P Y Montgomery Ward UCOlOO5B Y Montgomery Ward UCOl026B Y Montgomery Ward UCO1034B Y Montgomery Ward UCOl035B Y Montgomery Ward UCOl038B Y Tappan Y Tappan Y White Westinahouse SU21OJ V MOST EFFICIENT CLOTHES WASHERS Annual Annual Energy Energy Use Brand Model 7.7ClkWh (kwh) Standard Machines (over 16 gallon capacity) Gibson WS 27 M6-V Sears Roebuck & Co White Westinghouse LT25OL White Westinghouse LT7OOL White Westinghouse LT8OOL White Westinghouse LTl5OL Frigidaire WL White Westinghouse LA Maytag A21 2ST Maytag A1 O*T Maytag A112T Maytag A1 83T Maytag A1 90T Maytag A21 *T Maytag A28*T Maytag A31 2T

15 The energy efficiency of a water heater is indicated by its Energy Factor (EF), an overall efficiency based on the use of 64 gallons of hot water per day. The national appliance efficiency standards for water heaters took effect in The standards are based on storage tank size, as indicated below: Minimum Energy Factors (EF) Tank Size Gas Oil Electric 30 gallons gallons gallons gallons All other things being equal, the smaller the water heater tank, the higher the EF. Compared to small tanks, large tanks have a larger surface area, which increases heat loss from the tanks and decreases the energy efficiency. Of course, the capacity of the water heater is an important consideration. The water heater should provide enough hot water at the busiest time of the day. For example, a household of two adults may never use more than 30 gallons of hot water in an hour, but a family of six may use as much as 60 gallons in an hour. The ability of a water heater to meet peak demands for hot water is indicated by its first hour rating (listed in the rating column below). This rating accounts for the effects of tank size and the speed by which cold water is heated. The models listed below are grouped by their tank size. Brand MOST EFFICIENT GAS-FIRED WATER HEATERS Energy Model 1st Hr Factor Rated storage less than 40 gallons American Appliance DVPB American Appliance DVPB35LP 147 Bock 40 HE-N 71 Bock 40 HE-X 71 Bradford-White M-l I I-403T5CN-7 71 Bradford-White M-Ill-403T5CX-7 71 Lochinvar HEN US. Water Heater Co. M-lll-R403T5CX Storage ~ This model is designed for use as a combination space and water heater 11

16 MOST EFFICIENT GAS-FIRED WATER HEATERS (cont) Energy Brand Model 1st Hr Factor Storage Approximately 40 gallons rated storage Marathon MG Marathon MG40345H Sears Roebuck and Co Sears Roebuck and Co American Appliance N463V American Appliance N463V-LP Craft maste r N463V Craft maste r N463V-LP Mor-Flo N463V Mor-Flo N463V-LP American Appliance 463SV American Appliance N2F463T Craftmaster Craft maste r 463SV Mor-Flo 463SV ~~~ Approximately 50 gallons rated storage Marathon MG Marathon MG50345H Sears Roebuck and Co Sears Roebuck and Co Lochinvar H EL Lochinvar HEN US. Water Heater Co. M-llLR503S5CN US. Water Heater Co. M-lll-R503S5CX American Appliance N2F563T Craftmaster MOST EFFICIENT OIL-FIRED WATER HEATERS Brand Model 1st Hr EF Storage Bock 32PP Bradford-White F-I-305E50EZ Carlin RCG-3OEZ Ford FG3016EZ Rheem OGL-3OEZ Bock 30ES MOST EFFICIENT ELECTRIC WATER HEATERS 1st Hr Energy Storage Brand Model Rating Factor Capacity Approximately 30 gallons rated storage Marathon MP Marathon MP Reliance 1 30 lopt6-w State TCL 30 2LRT6-W (Many models have Energy Factor ratings of 96-97%.) 12

17 MOST EFFICIENT ELECTRIC WATER HEATERS (cont.) 1st Hr Energy Storage Brand Model Rating Factor Capacity Approximately 40 gallons rated storage Bradford-White M-Ill-30R5SS Sears Roebuck Sears Roebuck Sears Roebuck Sears Roebuck State TCL 40 2LRT6-W U.S. Water Heater M-Ill-RE30R5SS (Many models have Energy Factor ratings of 96%.) Approximately 50 gallons rated storage Bradford-White M-Ill-50T5SS Marathon MX50155S Rheem 81 G-52D Rheem 81 GV52' Richmond 8VG52-1, HIVG52S Rudd MEG Sears Roebuck Sutherland CL81 GX52D U.S. Water Heater M-Ill-RE50T5SS Vaughn M (Many models have Energy Factor ratings of 95%.) Approximately 60 gallons rated storage Marathon MX60' Marathon MX60* Marathon MX60* Marathon MX60* (Many models have Energy Factor ratings of 95%.) HEAT PUMP WATER HEATERS A heat pump water heater operates on the same principal as a refrigerator or an air conditioner-it removes heat from the surrounding air and delivers it to the water in the tank. Heat pump water heaters use about 1 /3 as much electricity as ordinary electric resistance water heaters. 13

18 MOST EFFICIENT HEAT-PUMP WATER HEATERS Brand Model 1st Hr EF Storage Reliance AHPWl HP-3, State SS8 82 1AHP4/CHP-3, Therma-Stor TS-HP-80-HRA Therma-Stor TS-HP Reliance AHPWl HP State SS8 52 lahp4/chp-3, Reliance AHPWl HP-3, State SS8 66 1AHP4/CHP-3, Therma-Stor TS-HPV-AC Therma-Stor TS-HPV-AC Therma-Stor TS-HP ROOM AIR CONDITIONERS Room air conditioners are rated by their Energy Efficiency Ratio (EER), the ratio of the cooling output divided by the power consumption. The higher the EER, the more efficient the air conditioner. The 1990 national standards for room air conditioners vary with the design and cooling capacity of each unit. On average, the 1990 standard requires a minimum EER of about 8.6. Brand Model MBtulhr Btulhr EER Volts 5,000 to 6,999 Btu/hr cooling capacity Airtemp C3R06F2A , Airtemp G3R06F2A , Climatrol M3R06F2A , Fedders A3R06F2A , Friedrich SQ05H , Friedrich SQO6H , Friedrich SQ07HlO , Friedrich YQ06H , Sharp AF-607M , Teknika AK61 E , Amana 7P2MA , General Electric AMEO6LA , Panasonic CW-601 JU , Quasar HQ2062DW , Sharp AF-508M , Sharp AF-608M , Tekn i ka AM63E , Teknika AM64E ,

19 MOST EFFICIENT ROOM AIR CONDITIONERS (cont.) Brand Model MBtu/hr Btulhr EER Volts 7,000 to 8,999 Btu/hr coolina cadacitv Friedrich Friedrich Teknika Teknika SS07H1 OA ,200 SS08H1 OA ,200 AK83E ,000 AK84E ,000 9,000 to 10,999 Btu/hr cooling capacity Carrier 51 GMB ,000 General Electric ACDO9LAXl ,000 Hotpoint KCDO9LAXl ,000 Friedrich SMl OH1 OA ,300 General Electric AVXl OFA Panasonic Quasar Friedrich General Electric Quasar Friedrich Carrier Carrier General Electric Kenmore CW-lO2VS12L6U ,000 HQ2102CW ,000 11,000 to 12,999 Btu/hr cooling capacity SS12HlOA ,000 AMH12AA ,000 HQ2122DW ,000 13,000 to 74,999 Btu/hr cooling capacity SM14H1 OA , GMAll ,500 51GMB ,000 ACDl4AAXl , Airtemp C3L14E2A , Airtemp G3L14E2A , Climatrol M3L14E2A , Fedders A3L14E2A , Panasonic CW-1401QU , Panasonic CW-141 VS12L6U , ,000 to 16,999 Btu/hr cooling capacity Comfort- Aire WV163HE , Comfort-Aire WW , Friedrich SS15H30A , General Electric ACD15DAX , General Electric ACS15DAXl , General Electric AESl5DAV , Hotpoint KCSl5DAXl , Hotpoint KESl5DAVl , Kenmore , Whirl pool AC1504XTO , ,000 to 19,999 Btu/hr cooling capacity Friedrich SL19H , Panasonic CW-1802QU , Quasar HQ2182DW , Carrier 77GMA , Friedrich EL1 9H Sharp AF-1807M ,

20 CENTRAL AIR CONDITIONERS Central air conditioners (CACs) are rated according to their Seasonal Energy Efficiency Ratio (SEER). This is the cooling output divided by the power input for an average U.S. climate. The average new CAC sold in 1988 had a SEER of about 9. The national appliance efficiency standard for split system central air conditioners will take effect in 1992, requiring a minimum SEER of 10. Many older CACs have SEERS of only 6 or 7. If you need or want to replace the outdoor (compressor) unit of your current air conditioner, make sure the indoor (blower coil) unit is compatible with the new outdoor unit. A highly efficient outdoor unit may not achieve its rated efficiency if paired with an older blower coil. Ask your serviceman to properly match your system to achieve its highest efficiency. The air conditioners listed below are grouped by their cooling capacity; each ton represents 12,000 BTU/hour of cooling capacity. Model/ Brand Condensina ModeKoil SEER Btulhr Capacity: approximately 2.0 tons Trane TTX724A TWV739E15-C ,400 Trane TTX724A TWH739E15-C ,400 Trane TTX724A THD080A9V3tTXF736S5t ,800 BAY 24x045 American ATN024A THD080A9V3tTXF736S5t ,600 Stand a r d American ATN024A BAY24XO45 TUC080B9V3tTXC736S5t ,800 Standard BAY 24x045 Lennox HS22-261V-1 P CB PtLB53081CD ,400 Lennox HS22-261V-IP CB PtLB53081CD ,000 Lennox HS22-261V-1 P CBH PtLB-53081CD ,000 Camcitv: amroximafelv 2.5 tons Trane Trane Lennox Trane Trane American Standard Lennox Coleman TTS730A TTS730A HS22-311V-1P TTX730A TTX730A ATN030A, <,. TUC080B9V3tTXC736S5 TDC080B9V3tTXC736S5 CB PtLB53081 CD TWV739E15-C TWH739E15-C TWV739E15-C ,800 30,800 31,400 32,000 31,800 32,200 HS22-311V-1P C FFtLB53081CD , G E833K ,600 Coleman K ,600 American ATNOBOA THD080A9V3tTXF736S5t ,000 Standard BAY24X045 Amana ZRCF30U01 D SCFC36AOVD ,400 C o I e in a n 9430G E ,600 Lennox HS22-311V-1P CB PtLB53081CD ,200 16

21 ~ ~~ ~~ MOST EFFICIENT CENTRAL AIR CONDITIONERS (cont.) Modell Brand Condensing ModellCoil SEER Btuthr capacity: approximately 3.0 tons Trane TTS730A TWV739E15-C Trane TTS730A TWH739E15-C ,200 Trane TTS736A TWV739E15-C ,000 Trane TTS736A TWH739E15-C ,000 Trane TTS736A TUC080B9V3tTXC736S ,000 Trane TTS736A TDC080B9V3tTXC736S ,000 Lennox HS V-6P CB P ,000 Lennox HS14-413V-6Y CB15-41-IP ,000 Goodman CTS36-1 A50-XXtEEP ,000 (GMC, Janitrol, Franklin) American ATN036A TWH064E15-C $,OOO Standard Trane TTX736A TWH064E15-C ,500 American ATN036A TWV064E15-C ,000 Standard Capacity: approximately 4.0 tons Trane TTS748A TWV064E15-C Trane Trane Trane Trane TTS748A TTS748A TTS748A TTS748A TUCIOOB9V5tTXCO,TXC754S TUCl OOB9V5tTXC,TXA064S THDIOOA9V5tTHX060S TDCI 2089V5tTXCO,TXC754S ;500 48,500 48,500 46,000 Trane Lennox Lennox Trane American Standard TTS748A HS14-51 IV-6P HS14-513V-6Y TTX742B ATN042A TDCI 20B9V5tTXC,TXA064S CB P CB P TWH064E15-C TWH064E15-C ,500 52,000 52,000 45,000 45,000 Trane TTX742B TWV064E15-C ,000 Trane TTX748A TWEO9OA ,000 American ATN042A THDlOOA9V5tTXH060S5t ,500 Standard BAY24XO45 Lennox HS14-511V-6P CB P Lennox HSI 4-513V-6Y CB15-46-IP ,500 17

22 CENTRAL HEAT PUMPS Central heat pumps provide both cooling in the summer and heating in the winter. However, heat pumps do not perform well over extended periods of sub-freezing temperatures. The cooling performance of heat pumps, like that of central air conditioners, is rated as a SEER. Heating performance is measured by the Heating Season Performance Factor (HSPF), a ratio of the estimated seasonal heating output divided by the seasonal power consumption for an average US. climate. A typical new heat pump has an HSPF of about 6.5 and a SEER of about 9. The national appliance efficiency standard for split system heat pumps will require a minimum HSPF of 6.8 and a minimum SEER of 10, effective in The heat pumps listed below are grouped by their heating and cooling capacities and ranked in order of their heating efficiencies. If you live in a region with significant heating and cooling seasons (e.g., mid-atlantic states), you should seek a heat pump that performs well in both seasons. If you live in a region where summer cooling is much more important than winter heating (e.g., Florida), then you will want a unit that is particularly efficient for cooling. Btuihr Btuihr Brand Outdoor Unit Indoor Unit Cool SEER Heat HSPF Capacity: approximately 7.5 tons Coleman , , Lennox HP P CB Pt 19, , LB34792BE Lennox HP P CBHl9-21-IPt 19, , LB-34792BE Lennox HP P CB Pt 19, , LB34792BE Lennox HP P CBH Pt 19, , Lennox HP P LB-34792BE CHl6-41-1FFt 19, , LB-34792BE Capacity: approximately 2.0 tons Carrier 38QE QE02430t 24, , Lennox HP P 40QE02430 CB Pt 24, , LB34792BE Lennox HP P CBH Pt 24, , LB-34792BE Lennox HP P CB Pt 24, , LB34792BE Lennox HP P CBH Pt 24, , LB-34792BE Coleman DUVO 23, , Coleman , , Lennox HP P CH FFt 24, , LB-34792BE I 18

23 ~ MOST EFFICIENT CENTRAL HEAT PUMPS (cont) Btuihr Btulhr Brand Outdoor Unit Indoor Unit Cool SEER Heat HSPF Capacity: approximately 2.5 tons Trane TWS730A TWV739E15-C 31, , Trane TWS730A TWH739E15-C 31, , Lennox HP P CB Pt 31, , LB34792BG Lennox HP P CBH Pt 31, , LE-34792BG Lennox HP P CB Pt 30, , LB34792BG Lennox HP P CBHl9-41-1Pt 30, LB-34792BG Rheem RPGB-030JA RHQA-13t 30, , RCQB-BO30 Rudd UPGB-030JA UHQA-13t 30, , RCQB-BO30 Trane TWX730B TWV739E15-C 32, , Capacity: approximately 3.0 tons Carrier 38QE QE03630t 36, , QE03630 Trane TWS736A TWV739E15-C 37, , Trane TWS736A TWH739E15-C 37, , Trane TWX736A TWH064E15-C 40, Trane TWX736A TWV064E15-C 39, , American TWA036A TWH064E15-C 42, , Standard Lennox HP P CB Pt LB34792BG 35, , Lennox HP P CBH Pt LB-34792BG 35, , American TWA036A TWV064E15-C 41, , Standard Coleman , , Coleman , , Capacity: approximately 3.5 tons Trane TWS748A TWV064E15-C 48, , Trane TWS748 TWH064E15-C 48, , Lennox HP P CB Pt 42, , Lennox HP P LB-34792BG CH19-51-ltB19-42, , PtLB-34792BG Lennox HP P CB Pt 43, , Lennox HP P LB34792BG CH19-51tB , , Coleman PtLB-34792BG , , Lennox HP P GB P ,

24 GAS FURNACES New furnaces are rated by their Annual Fuel Utilization Efficiency (AFUE), a measure of overall seasonal performance. The average new gas furnace sold in 1988 had an AFUE of 75%. The national efficiency standard for furnaces will take effect in 1992, and it will require that each furnace have an AFUE of at least 78%. Furnaces are available over a broad range of efficiencies, depending on the sophistication of the equipment: Furnace feature Gas pilot light (no efficiency features) Electronic ignition Automatic vent damper Power combustion Condensing furnace Typical AFUE 62% 68% 76% 82% go(+)% Condensing furnaces are often priced much higher than less efficient furnaces. Accordingly, condensing furnaces are most economical in areas with long, cold winters. Homeowners in regions with moderate or mild winters may find that furnaces with AFUEs in the 80% to 85% range are their best buys. Also, when buying a new furnace, make sure the capacity is appropriate for your home (an oversized furnace will operate less efficiently). MOST EFFICIENT GAS FURNACES Brand Model Btulhr AFUE to BtdHr Bryant 398AAW , Bryant 398AAZ , Carrier 58SX040-BC 40, Carrier 58SX040-FG 40, Carrier 58SXA040-FG 40, Day and Night 398AAW , Day and Night 398AAZ , Payne 398AAW , Payne 398AAZ , Lennox GI 4Q , Armstrong EG6E40DC13 38, Glowcore UGR040D13 38, Lennox GSRl4Q , Lennox GSR14Q , Heil-Quaker NUGSOSOAF 47, Heil-Quaker NULS050AF 47, Sears Roebuck and Co , Williamson WU N 47, Williamson wu l 47, Davton 3E436B

25 MOST EFFICIENT GAS FURNACES (cont.) Brand Model Btulhr AFUE 30,000 to 60,000 Btu/Hr (cont.) Heil-Quaker NDLKOSO(A,D)F 47, Heil-Quaker N UG K050M F 46, Sears Roebuck and Co , Tempstar NDLK050(A,D)F 47, Williamson WD , Williamson WU Duomatic Olsen Heil-Quaker Tempstar Carrier HDS 60M(70/60M) NULK050(L,M)F NULKOSO( L,M) F 58SXB060-CC 58;OOO 46,000 46,000 59, Day and Night Carrier Carrier Carrier Day and Night 398BAW SXB060-GG 58SXB060-GG-L 58SXB080-GG-L 398BAZ to Btu/hr 59,000 59,000 41,000 54,000 59, Sears Roebuck and Co , Amana EGHW100DC3 76, Amana EGHWlOODC3 76, Duomatic Olsen HDS 70M 67, Williamson C NOAH 80, Carrier 58SXB080-BC 79, Day and Night 398BAW , Carrier 58SXB080-GG 79, Carrier 58SXBlOO-LG-L 68, Day and Night 398BAZ , Day and Night Duomatic Olsen Sears Roebuck and Co. Duomatic Olsen Amana Duomatic Olsen Duomatic Olsen Carrier Carrier Day and Night Day and Night Lennox 398BAZ L HDS 80M(90/80M) HCS2-81 M 81,000 to 705,000 Btdhr EGHWlOODC3 HDS 90M HCS2-90M 58SXBlOO-HG 58SXBlOO-LG 398BAZ BAZ G14Q4/ ,000 to 135,000 BWhr 68,000 76,000 67,000 75,000 94,000 86,000 84,000 99,000 99,000 99,000 99, Central Environmental P1 UDD16N11401A 112, Systems Central Environmental PlUDD20N13301A 131, Systems Central Environmental P2UDD16N , Systems 21

26 MOST EFFICIENT GAS FURNACES (cont.) Brand Model Btulhr AFUE 706,000 to 135,000 Btu/Hr (cont.} Central Environmental P2UDD16P11401A 112, Systems Central Environmental P2UDD20N , Systems Central Environmental P2UDD20P13301A 131, Svstems Central Environmental PANU-LDl6N120A 112, Systems Central Environmental PANU-LD20Nl40A 131, Systems Central Environmental PBNU-LD16P , Svstems Central Environmental PBNU-LDl6N120A 112, Systems Central Environmental PBNU-LD20N140A 131, Systems Central Environmental PBNU-LD20P140A 131, Svstems MOST EFFICIENT GAS BOILERS (HOT WATER) Brand Model Btulhr AFUE 30,000 to 60,000 Btu/hr Hydrotherm A-50 B 47, Giowcore GB ;OOO 89.0 Buderus Logana 105/15 52, EnerRoval 60H 52, EnerRoyal 60HC 52, Heatmaker 6OHWC Weil-Mclain VHE Burnham XG-2003A-PV 54, Weil-McLain AHE-60 51, Weil-McLain AHE-45 38, Peerless PDE , Bryant 237AAW , Bryant 237AAY , Carrier 61 SWB Carrier Crown 61 SWD042 XE Day and Night 237AAW , Day and Night 237AAY , Dunkirk XE Metzger XE-2 36, Payne 237AAW , Payne 237AAY , Pennco FS-2 36, Sears Roebuck and Co , Sears Roebuck and Co ,

27 c MOST EFFICIENT GAS BOILERS (HOT WATER) (cont.) Brand Model Btulhr AFUE to 90,000 Btu/hr Hydrotherm A-100 B Glowcore GB090-7 Buderus Logana Weil-Mclain GV-3 Weil-Mclain VHE-4 88, , , , , Burnham XG-2004A-PV 82, Burnham XG2004AV 82, SlanVFin GG-75HEDS 64, Peerless PDE , SlanVFin GG-75HEDP 64, Hydrotherm Glowcore Buderus Logana Buderus Loaana Weil-Mclain- Weil-Mclain Weil-Mclain Buderus Logana Weil-Mclain Peerless 97,000 to 150,000 Btu/hr A C GB /42 VHE-6 VHE-5 GV GV-5 PDE , ,000 96, , , ,000 92, , , , MOST EFFICIENT GAS BOILERS (STEAM) Brand Model Btulhr AFUE Axeman-Anderson Burnham Burnham Burnham Axeman-Anderson Axeman-Anderson Axeman-Anderson Axeman-Anderson Axeman-Anderson Axeman-Anderson Axeman- Anderson Axeman- Anderson 108PGU XG-4004 XG-4005 XG PGU 149PGU 74PG 108PG 128PGU 87PG 128PG 149PG 116,000 88, , , , , , , , , , OIL FURNACES The national standard for oil furnaces is the same as that for gas furnaces: a minimum AFUE of 78% in High efficiency oil furnaces achieve their high ratings through automatic flue dampers and flame retention burners. 23

28 MOST EFFICIENT OIL FURNACES Brand Model MBtulhr Btulhr AFUE 50,000 to 80,000 Btdhr Dornback H EO Yukon U , Yukon H , EnerRoval ER75 FF 75 75, EnerRoyal ER75 HB 75 75, EnerRoval ERCF , EnerRoyal ER75 RF 75 75, EnerRoyal ERHB56 SF 58 58, Duomatic Olsen HTL 80B 77 77, Yukon , Duomatic Olsen WTL 80A 77 77, to Btu/hr Dornback HEO , Dornback HEO , Yukon U , Duomatic Olsen BCL 90s 89 89, Duomatic Olsen HTL 90B Thermo Pride OL5-85-V 83 83, Duomatic Olsen BCL 100s 99 99, Duomatic Olsen WTL 1 OOA 99 99, Duomatic Olsen WTL 90A 89 89, Thermo Pride OC5-85-V Thermo Pride OT5-85-V 83 83, ,000 to 135,000 BWhr Duomatic Olsen Duomatic Olsen Duomatic Olsen Williamson Williamson EnerRoyal Williamson BCL 120s ,000 BCL 145s ,000 WTL 105A ,000 T , ER116 HB ,000 R , ,000 ~ MOST EFFICIENT OIL BOILERS (HOT WATER) Brand Model Btulhr AFUE to Btdhr Axeman-Anderson OL-91 80, Buderus Logana , Ultimate PFO-4 74, Ultimate PFO-4T 80, Tarm T , Axeman-Anderson OL-91 Tarm T902/91 Crown BD-74 Dunkirk 3E.60 Pennco 3K.60 80, , , , Sears Roebuck & Co , Ford LM-70 84,

29 ~ MOST EFFICIENT OIL BOILERS (HOT WATER) (cont.) Brand Model Btulhr AFUE 85,000 to 104,000 BWhr Buderus Logana i 05/28 96, Crown CTPR-3 92, Ultimate PFO-5 93, Ultimate PFOdT Energy Kinetics System 2000 EK-1 104;OOO 87.5 Ultimate PFO-6T 117, EnerRoyal ERO-40C 87, EnerRoyal ERO-40 87, Thermo-Dynamics BY-75D 91, Vaillant F70, F , ,000 to 134,000 Btu/hr Crown CTPR-4 130, Axeman-Anderson 74NPO-U 105, Ultimate PFO-7 130, Axeman-Anderson 87NPO-U 134, Buderus Logana , EnerRoyal ERO , EnerRoyal ERO-50C 121, Vaillant F70, F , Axeman-Anderson 74NPO 133, Axeman-Anderson 74NPO-U 105, I MOST EFFICIENT OIL BOILERS (STEAM) Brand Model Btulhr AFUE 61,000 to 97,000 Btdhr Columbia TE-91 91, Columbia CSF , Utica SF , H.B. Smith 8-SIW-3L 91, Peerless JO/JOT-TW075-S 91, H.B. Smith BB-14-S-3L 89, Burnham v-73s 89, ,000 to 150,000 Btdhr General Machine CorD. OBT75C5S 92, Columbia TE , Columbia CSF , Utica SF , H.B. Smith 8-SIW-4L H.B. Smith a-siw-3~ 102, General Machine Corp. OBTl OOC5S 121, Slant/Fin L3OPZ 134, General Machine Corp. OBTl25C5S 148, H.B. Smith BB-14-S-4L 144, Columbia Peerless Peerless Burnham TE-122 WBIWBV-0854 WBNVBV-125-S v-74s 122, , , ,

30 COMPARISON SHOPPING AND LIFECYCLE COSTS The best appliance buy is not necessarily the least expensive model nor the one with the highest efficiency. Computing and comparing lifecycle costs of different models can identify the best buys. A lifecycle cost of an appliance is the combination of its purchase price and the annual operating costs over its useful lifetime. This section explains lifecycle costs and provides worksheets for your use. To compute a lifecycle cost, you will need to know: 1. The purchase cost (the price you pay the appliance store or contractor). 2. The cost of energy (from your utility bill or your local utility). 3. The yearly energy cost to operate the appliance (obtained from the EnergyGuide label using your local cost of energy). 4. The estimated lifetime of the appliance in years, given in Table A discount factor, a number that adjusts for inflation and for the fact that a dollar spent today does not have the same value as a dollar spent in the future, since today s dollar could be invested and earn interest over time. Discount factors are given in Table 1. The following formula is used to calculate lifecycle costs: LIFECYCLE - PURCHASE ANNUAL ESTIMATED DISCOUNT COST - PRICE + ENERGY COST LIFETIME RATE ) ( Consider the following example: You want to do a lifecycle cost comparison between Refrigerator A and Refrigerator B. You call your local utility and learn that electricity costs 10 &/kwh. You look at the EnergyGuide labels on Refrigerators A and B. The Yearly Cost table toward the bottom of the EnergyGuide label shows that at an electricity price of 10 cents per kwh, Refrigerator A has an annual energy cost of $1 00 while Refrigerator B has an annual energy cost of $1 20. The price on model A is $600, and the price of model B is $520. You check Table 1 on this page to find the correct lifetime (20 years) and discount factor (0.76) for refrigerators. With this information, you can now compare the lifecycle costs of the two refrigerators: Annual Purchase Energy Estimated Discount Lifecyle Appliances Price cost Lifetime Factor cost Refrigerator A $600 ( $100 X 20 X 0.76 ) = $2120 Refrigerator B $520 + ( $120 X 20 X 0.76 ) = $2344 From this calculation you learn that the refrigerator with the more expensive purchase price, model A, will actually cost you $224 less than the cheaper model over its lifetime. ~ i 26

31 Table 1. Characteristics of Appliances for Lifecycle Cost Comparisons Average Discount Appliance Lifetime (years) Factor* Water Heater (gas or electric) Refrigerators and Freezers Room air conditioners Dishwashers Clothes washers (*) Based on a discount rate of 5% and increases in the price of energy of 2% per year above inflation. Use the worksheets below to compare different models of appliances you are considering. Worksheets for computing lifecycle costs Electricity Price C/kWh Gas e/therm (Obtain from your utility bills or call your utilities) Annual Appliance Purchase Energy Estimated Discount Lifecycle Model Price cost Lifetime Factor cost +( +( X x )= X X I = +( X X )= +( X X )= +( X x )= +( X X )= +( X x )= +( X X )= +( X x )= +( X x )= Unfortunately, accurate lifecycle cost comparisons between different central air conditioners and furnaces must also include information concerning local climate and the condition of a home. Therefore, this procedure for computing lifecycle costs does not apply to these products. 27

32 FOR MORE INFORMATION ACEEE also publishes the 1991 Consumer Guide to Home Energy Savings. This illustrated, 252-page book contains expanded listings of energyefficient appliances and practical suggestions on how to reduce energy use and help protect the environment. This guide is available in bookstores, and it costs $6.95. Most of the listings in this booklet were derived from the following product directories, available from the respective industry associations Directory of Certified Refrigerators and Freezers, Association of Home Appliance Manufacturers, Chicago, January, Directory of Certified Room Air Conditioners, Association of Home Appliance Manufacturers, Chicago, March Consumer s Directory of: Certified Efficiency Ratings for Residential heating and Water Heating Equipment, Gas Appliance Manufacturers Association, Arlington, VA, April, Directory of Certified Unitary Air Conditioners, Unitary Air-Source Heat Pumps, Sound-Rated Outdoor Unitary Equipment, Air Conditioning and Refrigeration Institute, Arlington, VA, Feb.-July Additional information was obtained from the California Energy Commission and the Federal Trade Commission.

33 c Y ABOUT ACEEE The American Council for an Energy-Efficient Economy (ACEEE) is a nonprofit orgapization which gathers, evaluates and disseminates information to stimulate the use of energy conserving technologies and practices. ACEEE conducts research and analyses to convert information regarding energy efficiency into forms that are useful to utilities, private companies, government officials and individual consumers. We also sponsor workshops and conferences to enhance information exchange between the various groups interested in this topic. ACEEE IS supported by a broad variety of foundations, government organizations, research institutes, ut es and corporations. The results of our work are available in a number of books. technical reports and consumer guides. If you would like more information about ACEEE activities and publications, please write to us: ACEEE Suite Connecticut Ave. NW Washington, DC 20036