Why Temperature & Pressure Relief Valve Matters in Water Heaters

It pays to maintain your water heater regularly to ensure it remains safe to use. One of the crucial components to pay attention to is the temperature and pressure (T&P) relief valve. It’s usually located on the top or side of the tank and is connected to a discharge pipe. This valve activates when the temperature or pressure in your unit exceeds the preset limit.

The T&P valve serves as your unit’s last line of defense against malfunction, which can pose safety hazards. Roberts Plumbing Hydro Jet & Rooter discusses the importance of the T&P valve and when to call for water heater repair in Chatsworth, CA.


When the pressure or temperature inside the tank continues to rise, it can cause the tank to burst, leading to accidents, property damage, and untimely hot water heater replacement. This is where the T&P relief valve comes in. This safety device releases excess pressure and temperature to prevent such catastrophes in the first place.


Many manufacturers set the temperature of a traditional or tankless water heater at around 120 to 140 degrees Fahrenheit. These settings are hot enough to kill bacteria that may be present in the water. However, if the temperature inside the tank exceeds this limit, it can lead to scalding injuries. The T&P relief valve helps prevent this problem from occurring in the first place.


Given the critical role that T&P valves play, it’s no surprise that building codes require these components for all water heaters. This also means you should keep them in tip-top shape to keep your unit running smoothly. If you notice rattling sounds or excessive leaks, seek water heater services as soon as possible.

The experts at Roberts Plumbing Hydro Jet & Rooter are here to help you keep your T&P relief valve in check and take care of your unit. You can also count on us for hassle-free water heater installation, repair, and replacement.

Contact us today to schedule an appointment.