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Unused water heater, leave full or empty?
A friend has a house that came with two identical water
heaters hooked up in parallel. He doesn't need all the capacity, so we turned one of them off and turned off the water going into it. This was several years ago. The water heater was about 4 years old at the time, it's now 7 years old. Given that a tank has already had some service, what would you guys do to try to keep the spare tank available for as long as possible? Leave it full of water? Drain it? My thought was that draining it would be worse, because allowing air in, it would rust....... |
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