Is it feasible to do this at smaller scales? Would be cool to use my compurers to heat water at home. Put all that useless heat to good use.
Air conditioners could do it too, right? Pump heat into a water reservoir instead of just throwing it away?
Air conditioners could do it too, right? Pump heat into a water reservoir instead of just throwing it away?
It's a stainless steel coil that you can put on your A/C and then run water from your pool over it to heat the pool.
https://www.hotspotenergy.com/titanium-pool-heat-exchangers/
Some heat pumps do this. E.g. Panasonic Aquarea EcoFleX. When cooling the house, the domestic hot water tank is used to dump heat into (up to a certain temperature).
You need a lot of heat to do anything useful. I would need to run something like 14 kW of servers to heat my home through winter - that's a couple of hundred thousand in hardware at current prices.
(I work there)