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View Full Version : Do you need a expansion tank on a tankless water heater?


rocketsled
Jan 27, 2014, 08:14 AM
Do you need a expansion tank on a tankless water heater?

speedball1
Jan 27, 2014, 09:03 AM
No! Regards Tom

Milo Dolezal
Jan 27, 2014, 08:23 PM
In my area of operation, Inspectors now require Thermal Expansion Tanks to be installed in new construction.

However, if in doubt, install one. The Expansion Tank itself is not expensive and installation takes under a half an hour.

Milo