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Water heater thermal expansion tank. What is it?
Although it sounds complicated, don’t feel intimidated by this plumbing term. We are here to help you better understand your plumbing systems. Have you ever noticed that small metal tank right above or beside your water heater? Well, that’s it. That’s the water heater thermal expansion tank. It has a very specific purpose— it’s purpose is to allow pressure relief for your water heater. It ensures a constant pressure so the water heater pipes don’t get damaged due to an extreme amount of pressure.
The Water Heater Thermal Expansion Tank Design
The water heater thermal expansion tank is designed a specific way. The tank is separated by a rubber diaphragm into two sections. The upper section and the bottom section. The upper section is filled with water and is connected to the cold water system. The bottom section is filled with air. When the hot water expands, excess pressure builds up, the hot water in the tank will seep down into the air section of the tank, which then reliefs air onto the piping system. The water heater thermal expansion tank helps maintain a constant pressure so the pipes don’t become damaged.
Repair, Maintenance or Installation – Get a Plumber!
If you feel you need a maintenance service or repair service for your thermal tank, the team at Gogo Rooter can help. Or maybe you are looking to get a water thermal expansion tank installed, there is no job too big or too small for our team. We are also proud to offer a variety of other services, including gas line repair, pipe leaks, copper repiping, kitchen sink and toilet stoppages, tub and shower stoppages, laundry room plumbing, and much more. Call us or visit our website for more information, coupons and specials, and full details on what we can do to help you today!