Quote:
Originally Posted by redneck
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Did you get rid of the old tank ?
If you haven’t, put a plug in the drain hole and build a pre heater for your new unit.
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Not a bad idea in the right location. I don't really have the room for a glass coffin around a water heater in my small urban lot nor do I believe a homebrew water preheater will add value to my home or make it sell faster.
Then there is the climate. That kind of simple solar preheater works in mild climates where freezing isn't an issue. In colder climates that drop below freezing you have to either use coolant with a heat exchanger or drain back systems for 4 season use. For a simple system it could be plumbed in parallel and only used in the summer.