What Does Expansion Tank Do On Water Heater - It absorbs the excess pressure caused by. Web expansion tanks are safety devices connected to the cold water supply that helps control the thermal expansion. Web an expansion tank acts as a safety valve for the water heater system.
Web an expansion tank acts as a safety valve for the water heater system. Web expansion tanks are safety devices connected to the cold water supply that helps control the thermal expansion. It absorbs the excess pressure caused by.