Gas Water Heaters

1. Upper and lower combustion air must be installed when a water heater is installed in a  closet area

2. Must have 1" clearance on water heater vent from all combustible materials and observe manufacturer’s specifications

3. Gas stop must be of ball valve type and must be able to shut off by hand

4. Maximum length of flex gas pipe is 36", ½" minimum size

All Water Heaters

1. ** Expansion tank for thermal expansion protection installed on cold water pipe

2. Water heater pan must be approved for application

3. Must be in a 1 ½" deep pan with a 3/4" drain line to outside or approved receptor

4. If installed in garages and attics must have the water pipes insulated

5. Must be elevated 18" off garage floor (not required after June 1, 2007)

6. If it is structurally impossible to install a drain line to the outside, then the pan will be required with a fitting attachment that connects to a water hose, and this fitting must be capped, or to lowest point of garage floor.

7. Pressure relief valve discharge pipe shall discharge outside not more than two feet nor less than six inches above ground/floor level, or into an approved indirect waste receptor

8. Isolation valve on cold water pipe of heater to shutoff water

9. Cold water electric ground wire and clamp secured to pipe ahead of shut off valve

10. ** Unions on water inlet, outlet and temperature and pressure discharge lines (nut on water flex constitutes a union)

11. ** If installed in garages must have pan drain pipes to floor or outside

        ** Effective September 1, 2003