25 Steps in Inspecting a Water heater.
1. Location—Prohibited in Bedrooms, bathrooms or their closets (with some exceptions)
2. Full bore water shut off valve on the cold water side
3. Unions are required on the water connectors within 12 inches of the water heater
4. Bonding of the gasline and water supply connectors.
5. Water tight drip pan required in the water heater is over a framed area.
a. Drip pan requires a minimum ¾ inch drain line that discharges to an approved location
b. Drip pan must be 2 inches in diameter larger than the water heater
c. Drip pan height must be a minimum of 2 inches high
6. Access to the front of the water heater must be a minimum of 30 inch of clear space
7. Protection from vehicles required by bollards or location.
8. Flame or spark must be a minimum of 18 inches above the floor.
9. Water heaters supported on ground by 3 inch thick concrete pad above grade
10. Seismic straps needed in the top 1/3rd of tank, a minimum of 9 inches from the top of the tank and at the lower 1/3rd of the tank a minimum of 4 inches clearance from the gas control valve.
11. Seismic straps must wrap all the way around the water heaters.
12. Must be able to inspect and remove the water heater.
13. Combination Temperature Pressure Relief (TPRV) valve required in the top 6 inches of the water heater or Watts 210 Valve with Pressure Relief (PV) valve (City of Los Angeles as of 2008 prohibits the use of 210 Valves—due to failed seals and water entering the gas supply.)
14. TPR dischard drain lines must be the same size as outlet- typically ¾ inch diameter.
15. TPR material may be copper, CPVC or listed Tube----no flexible connectors are allowed.
16. Outlet end pointing downward and not threaded
17. Typically TPR discharge outlet end is outside wit in 6 to 24 inches from grade or other approved locations
18. TPR Drainline may not slope upwards, drain to drip pans or discharge to crawlspaces.
19. Flexible connectors cannot be used as TPR drainlines (smaller ID and restricts flow of discharge)
20. Vent connectors must be mechanically secured by screws to the water heater damper (metal tape is not accepted)
21. Only one draft hood is permitted.
22. No single wall vent connectors in conceal space or attic and also not outdoors in cold climates.
23. Terminate the vent flue a minimum of 5 feet above draft hood.
24. Sediment trap is required close as possible to the water heater after the gas shut off valve. ( per the more restrictive manufacturer’s requirements and 2007 California Plumbing Code 1212.7)
25. Enclosures required for exterior installations unless the water heater is listed for Exterior use.
Remember not all home inspectors are the same. In California home inspectors are not certified or licensed by the state. When selecting a home inspector for the purchase of your home or 11 month home warranty inspection then make sure the inspector either belongs either California Real Estate Inspection Association (CREIA) or American Society of Home Inspectors (ASHI) the most recognized professional associations of home inspectors in California. Make sure that the inspector has experience and Errors and Omission (EO) insurance. If you are a real estate agent you may want to follow the advice from California Association of Realtors (CAR) and provide a minimum of 3 home inspector names to your clients and please included Pacific West Home Inspections. For home buyers please go to
www.ehomeinspector.com and get “10 Tips on Finding a Home Inspector “ and it will help provide you with questions on how to find the most knowledgeable home inspector to protect your home investment and safety of your family.
Pacific West Home Inspections “From the Desert to the Sea” covers much of the Los Angeles County and Ventura County area including San Fernando Valley, Antelope Valley, Santa Clarita Valley, Conejo Valley, Simi Valley and beautiful Ventura.
Pacific West Home Inspections was founded in 1992 and always has been an one inspector outfit so to give you this most personalized attention to detail and quality service. I encourage my clients to follow me around as I do the inspection and they will get more out of this learning time than from the finished report. I use a narrative type of computerized report system with photos and it is very easy to read. With my 35 years of building experience from the Kalahari Desert in Botswana, Africa, to the central plateau of Guadalajara, Mexico and for the past 30 years in southern California I have gained a wide range of building experience.
Claro que se hablo espanol.
Please contact me at greg@ehomeinspector or phone me at 818-362-5578 for any questions or for scheduling your next property inspection.