I have read these sort of stories and I find this thinking very innovative and a good way to recycle the heat generated from mining equipment.
There was an April Fools joke a few years back, to place servers in homes to get free heat.
I don't think it was about jokes, at least as far as I remember, and it was about the Russian city of Irkutsk, where two entrepreneurs designed a system that would mine BTC and at the same time produce thermal energy. Maybe there were some April Fool's jokes, but over the years I have read about several examples where such systems have proven to be effective, of course with the assumption of cheap electricity.
https://archive.curbed.com/2017/11/9/16619032/bitcoin-mining-heat-homes-siberia-russia