Dutch_12078 wrote:
Our old Coachmen managed just fine at -2 deg F in southern VA, a couple of weeks ago. The only minor freeze up was a short PEX run that connects to our accumulator tank. We still had water at the faucets, but the pump cycled every time a faucet was opened, just as it would with no accumulator. About 5 minutes with a hair dryer fixed that.
Our refrigerator and probably yours has a heating element in the supply line to the ice maker.
Might be possible to put on in the short run of pex. to the water pump.