Hot Water Heater Discharge Pipe Code

Code expert glenn mathewson describes 10 common water heater code issues including confusion about drip pans and drains unsupported expansion tanks and plastic vents lack of combustion air and more.

Hot water heater discharge pipe code.

5 f the discharge pipe for a water heater shall terminate within the same room or enclosure within which the water heater or hot water storage tank is located. 504 6 requirements for water heater tpr valve discharge piping the discharge piping serving a pressure relief valve temperature relief valve or combination thereof shall. A trapped tpr dischage pipe is a common defect when a replacement water heater s tpr valve is lower than the original one and the installer connects to the exisitng discharge piping at the wall. Installing a tank water heater might seem easy but homeowners who refinish their basements often create a number of code violations with respect to the water heater.

Summary of relief valve code requirements. The plumbing code can be a little confusing if your not a plumber. Scalding water and steam escape the tank through the valve and tube to relieve the pressure. Building codes require temperature pressure relief tpr valves with discharge pipes on all new water heater installations.

8 termination of the tpr drain pipe cannot be more than 6 inches or less than two pipe diameters above the floor ground or waster receptor.