Therm-O-Flex Space Heating


Eliminates the risk of damage to the boiler and piping in the system。 In-line tanks from 2 through 14。6-gallons free-standing models from 14。6 gallons through 96 gallons, plus special Combination Units。 Not for use with potable water heating systems。

Therm-O-Flex Expansion Tanks


While most water heater installations in closed systems can be served by WaterGuard expansion tanks, the Therm-O-Flex expansion tanks are larger, and can handle higher storage volumes.

Waterguard Expansion Tanks


Many local codes now require a closed system which can cause damage if there isn’t a water expansion tank。 Ours are durable and easy to install。 A small price for insurance against damage。 IAPMO approved。

Expansion Tanks for Potable Water


Many local codes now require a closed system which can cause damage if there isn’t a water expansion tank. Ours are durable and easy to install. A small price for insurance against damage. IAPMO approved.