This is actually one of the use cases that Satoshi Nakamoto spoke about in regards to Bitcoin mining.
The purpose built machines for mining (ASICs) turn electrical energy into heat through performing hashes. If you need electrical heating there's functionally no difference between turning a regular heater on or turning on an ASIC. The benefit of turning an ASIC on instead is you can recoup some of the cost of expending the electricity.
The purpose built machines for mining (ASICs) turn electrical energy into heat through performing hashes. If you need electrical heating there's functionally no difference between turning a regular heater on or turning on an ASIC. The benefit of turning an ASIC on instead is you can recoup some of the cost of expending the electricity.