Quote:
Originally Posted by ah-kay
3) Run the coolant to a heat exchanger to heat your hot water or radiator in the house. It is possible but may be messy and need some inventiveness. Never thought of this.
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I don't see why this wouldn't work. A solar thermal hot water system works basically the same. A panel or tubes on the roof are heated from the sun as the coolant is pumped to either an in-tank or an external heat exchanger.
Hot water tanks designed for a solar application should work.
And, depending on your climate, hot water is one of the biggest energy users in the house. So not having to heat your water would lessen the amount of elecricity that would be required in your home thus lessening the output from the engine.