Tankless Water Heater T And P Valve

In my application code requires a pressure relief but not a temperature relief t p.

Tankless water heater t and p valve.

Gas fired tankless water heaters will usually require a pressure relief valve while electric on demand water heaters may not. This is one of those things that should never be needed unless something goes very very wrong with the tankless water heater. To keep your heater from exploding. Here s an excerpt from that manual.

Tankless heaters are required to have a pressure relief valve. So consult the manufacturer s installation manual. This valve may sit quietly unnoticed on your water heater but it has a very important purpose. They are prone to failure particularly if there is any water condition hard water etc at all.

The takagi gas fired tankless water heater manual specifies a pressure relief valve on the hot water outlet. The valve is called a t p valve or tpr valve for temperature and pressure relief. On the side or top of your water heater tank is a valve connected to a metal or plastic discharge tube pointing downward. My personal opinion of tankless heaters is that they are way too expensive to install and maintain never mind that few plumbers know how to service them.

This is just a pressure relief valve i used with a tankless water heater. The t p relief valve short for temperature pressure relief valve is a critical safety device on your water heater. If all goes well a tpr valve never gets used except during testing.