zogger
Tree Freak
With any engine-powered genny, there's lots of heat (~2/3 of input) that's going to waste. Via cooling system & exhaust. Now if you could recover that in cold weather, you'd have a big Win-Win. You might even run it regularly.
That is a very good point. I guess the easiest way to achieve this (safely) would be to use a liquid cooled engine and just route to a radiator inside the house, tied to the duct work maybe. Or run through some mambo thermal mass. Heap of rocks, something... Don't know what to do with the exhaust other than run a turbo..MO KILO TO DE WATT
err..uhh
Might not be too great in the summer though, bringing the heat in.....perhaps some sort of bypass valve, or only for domestic water heating then.
Run a stirling engine backup off the waste heat from the primary...