Hot Water Heater Discharge Pipe Code

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.

Hot water heater discharge pipe code. Not be directly connected to the drainage system. 2017 fbc residential 6 th edition 28 water heaters p2804 relief valves p2804 6 installation of relief valves p2804 6 1 requirements for discharge pipe 1114 1 4 storm drainage piping discharge piping shall meet the requirements of section 1102 2 1102 3 or 1102 4 and shall include a gate valve and a full flow check valve. The plumbing code can be a little confusing if your not a plumber. 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.

If the pressure in the tank exceeds 150 psi or the temperature exceeds 210 degrees fahrenheit the tpr valve opens to release the pressure. 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. 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. 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.

Building codes require temperature pressure relief tpr valves with discharge pipes on all new water heater installations.