Quote:
Originally Posted by rudyhehn
AS above, I blow mine out with compressed air and drain the HW heater. Easy to do. I leave water in the holding tank, as there is plenty of room for expansion if it freezes. Question for others - do I need to drain the HW heater or just pop open the overflow valve to allow expansion?
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Do you want the water heater tank to crack? The overflow won't allow the kind of expansion that freezing water does. Drain the water heater and have peace of mind.
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