Comment by lopis

I dream of a future where there's an efficient energy recapture in the house. We waste a lot of heat in the shower, and washing clothes and dishes. We also run the fridge all winter when it's less than 5C outside, and the fridge then produces a lot of heat. And when we're done cooking, the oven is still really hot. Could the home heating system of the future use all this heat (and cold) more efficiently?