Tankless Water Heater Pressure Relief Valve Leaking

If a pressure relief valve for a boiler is accidentally installed on a water heater it will leak like crazy from the start.

Tankless water heater pressure relief valve leaking.

If it leaks then it can do quite a bit of damage in just a short amount of time with just the water that is leaked. It s easier to correct issues with a lower flow rate than when it s high. The relief valve is an important safety feature on the water heater. Every water heater whether gas or electric needs a temperature and pressure relief valve because without one it could begin to leak or even explode.

Well if your water heater pressure relief valve is leaking after testing then there is no other solution than to replace it. As such many people are surprised to learn that some models of tankless water heater do not have pressure relief valves. If the water inside the unit gets too hot usually above 210 degrees or pressure builds up too high above 150 psi the water heater can become damaged or even explore. They wonder if the missing valve makes the tankless water heaters less efficient or prone to break downs.

Usually what causes a leak is the minerals in the water that will deposit on your valve. 1 either the water pressure inside the tank is too high 2 the water temperature is too high 3 the t p valve hasn t been used in a few years 4 the wrong t p valve was installed or 5 the t p valve itself has failed. A water heater pressure relief valve is what prevents the levels of pressure from your water heater from getting to dangerous levels. Relief valve customarily set on the hot water outlet from where the pipe is leaving the heater to faucets.

Tankless water heaters work well with low flow rates and low water pressure. There are numerous possible reasons your water heater s pressure relief valve leaks. The t and p valve which is located on the. A flow rate of 5 gpm is suitable for a residential application with a pressure system of 30 psi.

These valves may look identical but they re set to go off at 30 psi. Ensure that all pipes and valve are joint correctly and you set relief valve during installation according to the size of the heater. What does the relief valve do. We are here to tell you that it is okay for some water heaters to be without temperature pressure relief valves.

This is the water heater pressure relief valve s way of telling us that it needs to be replaced as soon as possible. Replacing the old valve with a new one.