Does a gas heater need to be used on occasion to keep it in good condition? We haven't really used it and it got me wondering if we should run it on occasion to keep things going or if it is designed to sit for long periods without use.
When the pump is running, the water is passing through the heater piping (heater not on). Is this normal or should there be a bypass or valve so to speak to avoid the heater if it's not in use.
I am going to be redoing some plumbing, so now is the time to make things "right"