Electric Water Heater Need Expansion Tank

Sizing expansion tanks for water heaters can be a complex engineering challenge but residential expansion tank sizing has been simplified through the use of calculators.

Electric water heater need expansion tank. Bottom board electric water heaters require insulation when placed in an unheated area to prevent heat loss. One 50 gallon water heater for instance can be served by a 2 gallon expansion tank. If the house has a closed plumbing supply meaning there is a check valve or backflow preventer that prohibits the release of water pressure building back into the water main. Some manufacturers may even void your water heater warranty if you have a closed plumbing system but don t have an expansion tank for your water heater.

Both water heaters and boilers for home heating systems can be prone to this kind of damage unless measures are taken to prevent it. If you have more questions about water heater expansion tanks please give us a call or fill out the form below. A water heater expansion tank can often be replaced without having to replace your entire system. The expansion tank gives the excess hot water a place to flow into eliminating unnecessary stress on your hot water heater and saving you from inconsistent hot water pressure.

If you have more than one heater on the same or connected system you can either have an expansion tank for each heater or a single larger expansion tank. One meter cold supply header to 3 in basement and other cold supply to attic on the other two. Bottom boards are a buffer made of r 10 or better thermal resistant material that increase the efficiency of your electric heater. I have 5 50 gallon electric water heaters in 4 plex.

You see expansion tanks work like shock absorbers on your car. Expansion tanks aka thermal expansion tanks are essentially safety devices to help you minimize the risk of damage to your hot water tank they are an add on to your existing hot water heater and are often installed on the water supply pipe to the water heater normally this is on the wall next to or very close by your hot water tank. If you have a pressure regulating valve or a check valve. If you have noticed fluctuating.

If you have a closed system. Do i need expansion tanks on hot side of each water heater. New or larger expansion tanks may be needed due to pressure reducing valves check valves and backflow preventers added to the community s water system. In a closed plumbing system a standard tank water heater can stress your plumbing pipes and fixtures through the normal thermal expansion that happens when water is heated.

This can be a problem in any closed system where water is heated. Seems like it is all one big system with check valve back at city meter. They absorb excess water pressure protecting your water heater from damage and early failure. Most tank water heater systems now require expansion tanks to help control pressure inside the water heater especially on municipal water supply plumbing systems.