[rini17]

In most locales it would likely consume more electricity than value of bitcoin mined. Even considering bullish price outlook, hardly anyone needs nonstop heating 24 hours per day to actually recoup the investment. Perhaps if it had some kind of heat accumulator that would allow to store heat for few hours and later release when it is needed?

[Gynoid]

Many people keep their electric heaters on 100% of the time. Or have a few heaters and keep some of them 100% of the time. So, it's far from "hardly anyone"