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.

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

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. If the pressure in the tank exceeds 150 psi or the temperature exceeds 210 degrees fahrenheit the tpr valve opens to release the pressure. Scalding water and steam escape the tank through the valve and tube to relieve the pressure. Not be directly connected to the drainage system.

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.