Quote:
Originally Posted by oil pan 4
You could add a non vented hearer too.
100% efficient all the time.
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Very true. And the water vapor would actually be beneficial here in dry Colorado. Install a CO (carbon monoxide, not Colorado) detector and there I'd have it!
A crazy idea I've had is to run a natural gas engine (perhaps a steam powered engine) and use the heat off the exhaust to warm the house and use the engine to either supply electricity or to turn a heat pump and heat the house even more.