1. 1 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Plumbing Overview WEATHERIZATION INSTALLER/TECHNICIAN FUNDAMENTALS WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012

2. 2 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Learning Objectives By attending this session, participants will be able to: Recognize common plumbing tools and materials, their characteristics and uses, and fittings. Discuss common hazards and how to resolve them. Install faucet aerators, pipe insulation, and tank wrap. Recognize asbestos. List potential water heater replacement types. Cite applicable building codes. PLUMBING OVERVIEW

3. 3 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Basic Plumbing Toolkit Photo courtesy of Popular Mechanics PLUMBING OVERVIEW

4. 4 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Common Plumbing Materials Graphic courtesy of watersystemsz.com PLUMBING OVERVIEW

5. 5 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Cast Iron Pipe Images courtesy of About.com – Home Repair Commonly used for main waste drain Very strong Difficult to cut Fitting Method: Banded neoprene couplings Banded neoprene fitting, also called a no-hub cast iron pipe fitting. PLUMBING OVERVIEW

6. 6 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Drains, waste, and ventingHot and cold water supply PVC and CPVC Images courtesy of About.com – Home Repair PLUMBING OVERVIEW

7. 7 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Chromed brass pipeChromed copper pipe Chromed Piping Exposed drains and traps Water supply Images courtesy of About.com – Home Repair PLUMBING OVERVIEW

8. 8 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Was commonly used for supply and drain lines in older homes Threaded fittings are prepared with plumber’s tape Galvanized Iron Pipe Image courtesy of About.com – Home Repair Image courtesy of 411plumbing.com Image courtesy of all-about-pipe.com PLUMBING OVERVIEW

9. 9 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Used for water supplySoldering joints Copper Pipe Images courtesy of About.com – Home Repair Image courtesy of familyhandyman.com PLUMBING OVERVIEW

10. 10 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Piping, fittings and crimping tools Plumbing manifold PEX Piping Image courtesy of pexsupply.com Image courtesy of jobsitebuildiq.com Image courtesy of mobilehomerepair.com Image courtesy of extremehowto.com Crimpers PLUMBING OVERVIEW

11. 11 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Image courtesy of checkthishouse.com Black iron pipe is commonly used for gas supply lines. Black Iron Pipe Image courtesy of preferredhomerepair.com Image courtesy of About.com – Home Repair Black Iron Pipe Gas supply lines should have drip legs to collect condensation. PLUMBING OVERVIEW

12. 12 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Health and Safety Factors to consider include: Insufficient clearance Significant plumbing leaks Structural problems Standing water or open sewage Vermin Major obstructions Electrical hazards Note: The health and safety of workers and the long-term integrity of the client’s home should be the main concerns. Photo courtesy of WV GOEO PLUMBING OVERVIEW

13. 13 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Common efficiency measures related to plumbing include: Wrapping hot water heater tanks with insulation. Adding pipe insulation to hot water pipes. Water heater replacement. Adjusting the set temperature. Repairing leaky hot water taps. Installing low-flow showerheads and faucet aerators. Plumbing-related Energy Efficiency Measures Photo courtesy of US Department of Energy After checking the temperature at the faucet, the auditor may adjust the water heater set temperature. PLUMBING OVERVIEW

14. 14 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov TYPICAL WEATHERIZATION MEASURES Photos courtesy of the US Department of Energy

15. 15 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Cut pipe insulation at an angle to cover elbows Insulate the Pipes Don’t insulate too close to the flame on gas water heaters Pipe is exposed at elbow Insulation too close to flame PLUMBING OVERVIEW Photos courtesy of the US Department of Energy

16. 16 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Removal and disposal of asbestos materials requires special training and credentials. Check state requirements. Asbestos Pipe Wrap Image courtesy of theaurorahomeinspector.com If asbestos pipe wrap is discovered on the job site, notify the crew leader for direction. PLUMBING OVERVIEW

17. 17 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Replacement can be based on: Audit Water Heater Guide on WAPTAC Health & Safety Can replace existing water heater in eligible households with: Standard tank water heaters Whole Home Tankless Heat Pump Water Heaters Solar Water Heaters Replacement Images courtesy of www.energystar.gov PLUMBING OVERVIEW

18. 18 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Cut down on hot water use by repairing leaks and installing low-flow fixtures. Hot Water Use Source: 2008 Buildings Energy Databook. US DOE 6% Faucet Flow 20% Bath Filling Showers 37% Clothes Washer 14% Dishwasher 10%14% Sink Filling PLUMBING OVERVIEW

19. 19 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Repair Leaky Hot Water Tap AverageHigh Energy Savings144 kWh/yr3,000 kWh/yr $ Savings*$15.84/yr$330/yr Leakage2 drips/min1 drip/sec * Savings based on $0.11/kWh PLUMBING OVERVIEW

20. 20 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Reduce Hot Water Consumption Showers: Replace faucets with flow of ≥ 3 gpm Lavatory faucets: Install faucet aerators if none exist Kitchen faucets: Install faucet aerators if none exist Low-Flow Fixtures PLUMBING OVERVIEW Image courtesy of askmehelpdesk.com

21. 21 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Faucet aerators: Can reduce hot water use. Go together as shown here. Faucet Aerators Image courtesy of askmehelpdesk.com PLUMBING OVERVIEW

22. 22 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012eere.energy.gov Summary Common plumbing materials include galvanized pipe, PVC/CPVC, copper, black iron pipe, cast iron, and PEX. Many low-cost measures – faucet aerators, pipe insulation and tank wrap – take almost no time to install and save the clients money. Asbestos should not be disturbed. Water heater replacements may include storage tank, on- demand, solar, and heat pump water heaters. NFPA 54 provides gas fitting guidelines. The UPC addresses plumbing. PLUMBING OVERVIEW