I know that mining these days isn't really hugely profitable unless you're a massive miner, especially when you factor in rapid difficulty increases.

But, I'm wondering if anybody has experimented (at a residential scale) with heating their house or heating hot water with their Bitcoin miners.

I was wondering if this might be a good way of (perhaps) earning back some of the $250+ I spend each month paying for the natural gas to do these things (I live in Canada. It's cold).

Thoughts?