Posts Tagged: water heater pressure

Water Heater Expansion Tank: Do You Need One and Why?

What Happens If You Don’t Have a Water Heater Expansion Tank? Quick Summary If your home has a closed plumbing system, you likely need a water heater expansion tank. This small tank gives expanding hot water somewhere to go, helping control pressure and protect your water heater, pipes, valves, faucets, and other plumbing components. • A water heater expansion tank absorbs the extra water volume created by thermal expansion. • If your home is equipped with a pressure-reducing valve (PRV), check valve, or backflow preventer, it commonly has a closed … Read More