Re: thermal expansion pressure
Posted by hj on August 31, 1999 at 00:25:36:
In response to Re: thermal expansion pressure
It depends on the amount of water, the temperature before heating began, any possible pressure reducing backflow, and the amount of air in the system (if any). Answer, impossible to tell you.

: How much of a pressure increase should occur when the water heater is on and heating or just after it shuts off?




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