> And I also think they could do some clever stuff with home HVAC, possibly using waste heat from crypto miners as the H.
That doesn't sound... particularly clever. Crypto miners are essentially disposable, with a useful economic lifetime of a couple of years, typically. And they are 100% thermally efficient. Which sounds quite good, until you consider that an air source heat pump is typically around 300% thermally efficient, rising to up to 500% for ground source.
So, once your crypto miner is no longer really making anything (a couple of years), you're left with a really inefficient heating system.
That doesn't sound... particularly clever. Crypto miners are essentially disposable, with a useful economic lifetime of a couple of years, typically. And they are 100% thermally efficient. Which sounds quite good, until you consider that an air source heat pump is typically around 300% thermally efficient, rising to up to 500% for ground source.
So, once your crypto miner is no longer really making anything (a couple of years), you're left with a really inefficient heating system.