[Quix]

No, true. I'm no expert . . .

But you can construct--if you can weld--your own steam wheel sort of affair.

I forget what sorts of liquids work.

But say the lower 1/3 or so of the wheel is in a tank of the hotter water. The heat converts the liquid within the wheel converts to a gas. When configured correctly, the conversion to a gas turns the wheel. The cooler water condenses the gas back to a liquid.

A chemist or physicist would be better to tell you what liquid/gas composition would work at your temps.

I think it's all fairly low tech and should work quite well to even generate at least supplemental electricity.

Please keep us posted!

[LittleJoe]

I think it's all fairly low tech and should work quite well to even generate at least supplemental electricity

Low tech is right up my alley!

My first ten years here we had no power or phone lines. I used every low tech method imaginable to generate power. If only I would have had the hot water back then...I'm so excited I feel like a kid again!