Water Heater Insulation and Other Conservation Measures

Transcription

1 Basic Weatherization Conservation Measures and Efficiency Water Heater Insulation and Other Conservation Measures Water Heater Insulation and Other Conservation Measures Instructor Guide

2 Basic Weatherization Conservation Measures & Efficiency

3 Water Heater Insulation and Other Conservation Measures

4 Water Heater Insulation Water Heater Insulation

5 Water Heater Insulation Gas water heater energy loss from uninsulated water heaters: 7% lost through pipes 15% lost through tank Water Heater Insulation

6 Water Heater Insulation All water heater tanks must be insulated with R-6 minimum Water Heater Insulation

7 Water Heater Insulation Steps to water heater insulation Water Heater Insulation

8 Water Heater Insulation 1. Check location of water heater a. Check to make sure that the water heater is safe to operate b. Refer to Section 5 of WIS manual for standards Water Heater Insulation

9 Water Heater Insulation 2. Check for feasibility Water Heater Insulation

10 Water Heater Feasibility 1. Gas leaks present 2. Already insulated 3. T & P valve not present 4. Leaky water pipes or tank 5. No shut off valve 6. Both burner access door missing 7. Less than 1 space behind tanks 8. Not properly installed Water Heater Insulation

11 Water Heater Feasibility Water Heater Insulation

12 Water Heater Insulation 3. Remove combustible item around water heater Water Heater Insulation

13 Water Heater Insulation 4. Check to see if water heater is vented properly Water Heater Insulation

14 Water Heater Insulation 5. Check for combustion and ventilation air Water Heater Insulation

15 Water Heater Insulation 6. Check the gas supply line, replace if it does not meet standards Water Heater Insulation

16 Water Heater Insulation 7. Clean the top and side with a damp cloth Water Heater Insulation

17 Water Heater Insulation 8. Cut the blanket to length a. Use scissors b. Cut to the length of the water tank Water Heater Insulation

18 Water Heater Insulation 9. Wrap blanket around tank and temporarily tape to the top of the tank a. Use pre-made flap b. Or overlap 2 Water Heater Insulation

19 Water Heater Insulation 10. Cut the blanket around straps and valves a. Cut around earthquake straps b. Cut around drain valve c. Cut around thermostat d. Maintain 3 clearance around draft hood Water Heater Insulation

20 Water Heater Insulation 11. Mark and cut a flap around the location of safety and lighting instructions Water Heater Insulation

21 Water Heater Insulation 12. Tape the blanket to the tank a. Use short pieces as cross straps b. Use long piece as seam sealer c. Tape top of blanket around the tank at the top d. Seal exposed insulation with tape at bottom of tank Water Heater Insulation

22 Water Heater Insulation 13. Cut hinged access flap for instruction area a. Put hinge at the top if possible b. Use permanent marker to label flap c. Keep flap closed with pieces of tape Water Heater Insulation

23 Water Heater Insulation 14. Install 3 straps on the blanket a. Place straps 2 from top, 2 from the bottom of the tank b. Place the third strap in between the top and bottom straps c. Tighten just enough to provide snug fit, minimum compression Water Heater Insulation

24 Water Heater Insulation 15. Insulate water pipes within 5 of tank a. Insulate at least one foot of pipe b. Keep 3 from draft hood, 3 from B-vent pipe, 6 from single wall pipe c. Do not cover T & P or shut-off valves d. Miter and cope all joints e. Glue or metallic tape all seams and joints f. Use zip ties, 1 from the end and 12 apart Water Heater Insulation

25 Water Heater Insulation Water Heater Insulation

26 DISCUSSION

27 Energy Saving Measures Other Conservation Measures

28 Energy Saving Measures Energy saving shower head Energy saving aerator Thread-based CFL Hard-wired CFL Evaporative cooler and air conditioner vent cover Refrigerator replacement Other Conservation Measures

29 Energy Saving Aerator Installation 1. Remove aerator with tools 2. Clean threads with cloth and/or brush 3. Install aerator by hand, no cross threading 4. Check for leaks Other Conservation Measures

30 Energy Saving Aerator Installation Other Conservation Measures

31 Energy Saving Aerator Non-feasibility 1. If the faucet has a special fitting 2. Stand aerators will not fit 3. Existing aerator can not be removed 4. The faucet does not provide hot water Other Conservation Measures

32 Compact Fluorescent Lamps 1. Energy Star qualified 2. Replace incandescent or halogen 3. CFL to provide same lumens 4. Maximum of five bulbs replace Other Conservation Measures

33 Compact Fluorescent Lamps Other Conservation Measures

34 CFL Non-feasibility Other Conservation Measures

35 CFL Non-feasibility 1. Fixture not functional 2. Circuit controlled by non compatible dimmer 3. Fixture located in storage room or closet 4. Hazardous condition exists at the fixture Other Conservation Measures

36 CFL Non-feasibility 5. Thread based CFL will not fit 6. Fixture in wet location without grounding conductor 7. Circuit does not operate 8. Customer refuses Other Conservation Measures

37 Hardwired Compact Fluorescent Lamps 1. Fixture must be properly grounded 2. All connections done with wire nuts 3. Installation must comply with local code 4. Mounting plates secured with at least 2 screws 5. Follow color code, match colors Other Conservation Measures

38 Hardwired Fluorescent Fixture Other Conservation Measures

39 INSTRUCTOR OUTLINE and LESSON PLAN Water Heater Insulation and Other Conservation Measures Materials and Supplies 1. Pipe Board 2. Pipe Insulation Tape 4. Pipe Insulation Tape 5. Tin Snips 6. Utility Knife 7. Snap Ties 8. Wire Cutters Learning Outcomes 1. Describe the pipe insulation installation standards 2. Cut pipe insulation to form corner miter joint 3. Cut pipe insulation to form a coped T joint Outline and Procedures TOPIC Pipe Insulation Show pipe board Describe tools needed: tin snips, utility knife Show insulation material Describe the minimum standards for insulation materials Describe the minimum standards for all joints and seams Show how to cut a corner joint Show how to cut a cope joint for a T Show the different tapes used and explain that the student will use masking tape for the exercise to save money Show the proper location of the snap ties Describe the correct tension and compression--no compression except at the end < ¼. Evaluation Competency Demonstration

40 INSTRUCTOR OUTLINE and LESSON PLAN Water Heater Insulation and Other Conservation Measures Materials and Supplies 1. CFL Bulb 2. LED Bulb 3. Incandescent 4. Halogen 5. Bulb Base 6. Watt s Up Meter 7. IR Thermometer Learning Outcomes Outline and Procedures TOPIC Light Bulb Efficiency Review electrical, power, watt Put in incandescent bulb, turn on power Measure power drawn by bulb Measure bulb temperature after 30 seconds Install CFL bulb and note power draw Measure temperature after 30 sec. Install LED bulb and measure power Measure temperature Install halogen bulb and measure power Measure temperature of halogen Compare power usage of each bulb Demonstrate how to remove bulb Turn bulb by base, not by coil Describe disposal of CFL 1. Measure and recognize energy efficiency differences between types of light bulbs Evaluation None

41 Basic Weatherization Conservation Measures & Efficiency Water Heater Insulation and Other Conservation Measures Instructor Lecture Notes 1. Types of water heaters 2. Materials for insulating water heater 3. Conditions for feasibility 4. Steps for blanket installation 5. Pipe insulation 6. Shower heads and aerators 7. CFL - thread based and hardwired

42 Basic Weatherization Conservation Measures & Efficiency Water Heater Insulation and Other Conservation Measures Instructor Lecture Notes Answers 1. Types of water heaters Electric water heater, gas water heater. Electric has cord, gas has exhaust flue--both are insulated and gas is the one we will see around here. 2. Materials for insulating water heater R-6, fiberglass with vinyl or foil face. Use metal tape or vinyl, also three straps, use scissors to cut the blanket. 3. Conditions for feasibility Check to make sure it is out of weather, there are no gas or water leaks. It must vent properly and have proper combustion air, top and bottom vents. New water heaters do not need insulation, they already have it. Make sure there is no soot, this is a sign of incomplete combustion. There needs to be 1 space all around and at least 4 in front. The supply pipe needs to meet modern code and there must be a shut-off valve. T&P valve and drain pipe must be installed. 4. Steps for blanket installation 1-check location, 2-check for leaks, 3-check combustion air, 4-check for leaks, 5-clean off tank, 6- cut blanket to length, 7-wrap blanket and mark label location, 8-tape blanket to tank, tape seam and top, 9-cut label flap and mark the flap, 10-install three straps, 11-insulate water pipes SECTION 5 WIS 5. Pipe insulation Use proper size, tape all joints, miter corners, cope intersections, put slits on horizontals down. Use metal tape or glue, use snap ties 1 from end and 12 apart SECTION 5 & 6 WIS 6. Shower heads and aerators 2.5 gpm, put on by hand and use Teflon tape. Areators put on by hand, they restrict water flow. Do not put showerheads on plastic arms SECTION 8 WIS 7. CFL thread based and hardwired May install up to 5 CFLs in one house. Do not install in inoperable or dimmable or fixture or one with a timer. Fixtures should be grounded and to building code.

43 Basic Weatherization Conservation Measures & Efficiency Water Heater Insulation and Other Conservation Measures Conservation Measures Quiz Answer Sheet Name 1. For proper operation, a gas water heater requires combustion air at both and. 2. What would most clearly indicate that a water heater is electric? 3. List four conditions which will prevent the installation of a water heater blanket: a. b. c. d. 4. If the water heater is located in a garage, it must be on a above the floor, before it can be wrapped. 5. The heat loss through the walls of a water heater is a good example of. 6. For safe operation, tape and insulation blanket must be kept away from the draft hood on gas water heaters. 7. The greatest heat loss on a gas water heater comes from the. 8. If a water heater has earthquake straps in place, remove the straps, wrap the water heater and reattach the straps: True/False 9. If there is a gas odor, do not install blanket, have customer call. 10. and save energy by reducing hot water use. 11. or are used on joints in pipe insulation. 12. CFL stands for.

44 Basic Weatherization Conservation Measures & Efficiency Water Heater Insulation and Other Conservation Measures Conservation Measures Quiz Answer Sheet 1. For proper operation, a gas water heater requires combustion air at both top and bottom. 2. What would most clearly indicate that a water heater is electric? No vent and an electric cord 3. List four conditions which will prevent the installation of a water heater blanket: a. no draft hood b. combustion doors missing c. Water heater leaks d. not allowed by manufc.( new, already has it) 4. If the water heater is located in a garage, it must be on a platform 18 above the floor, before it can be wrapped. 5. The heat loss through the walls of a water heater is a good example of conduction. 6. For safe operation, tape and insulation blanket must be kept 3 away from the draft hood on gas water heaters. 7. The greatest heat loss on a gas water heater comes from the vent. 8. If a water heater has earthquake straps in place, remove the straps, wrap the water heater and reattach the straps: True/False 9. If there is a gas odor, do not install blanket, have customer call The Gas Company. 10. Low flow shower heads and faucet aerators save energy by reducing hot water use. 11. Metal tape or glue are used on joints in pipe insulation 12. CFL stands for compact fluorescent lamp.