Reply To: Relaince 120v 20 Gallon Water Heater

The Tank Relaince 120v 20 Gallon Water Heater Reply To: Relaince 120v 20 Gallon Water Heater

#22424
Larry Weingarten
Participant

Hello: I’d first determine whether it’s temperature or pressure that’s causing the problem. Do this by putting a 0-200 psi gauge on the heater’s drain valve and letting the tank heat up. If pressure rises much at all, it suggests you have a check valve, pressure reducer or back-flow preventer, not allowing thermal expansion. If so, it’s time to install the smallest expansion tank you can find. This is what I expect the problem is. Why not test for pressure and let us know what you find? 😉

Yours, Larry

Water Heater Rescue

You cannot copy content of this page