oh I get that, computing creates heat and we should totally re-use it. But where CPU heat is 1 kWh of electricity = 1kWh of heat, a heat pump will have 1 kWh o

oh I get that, computing creates heat and we should totally re-use it. But where CPU heat is 1 kWh of electricity = 1kWh of heat, a heat pump will have 1 kWh of electricity = 3 kWh of heat, because it's "sucking" 2kWh of heat from a medium (air, water, ground whatever) and literally making it colder. Now OP was suggesting increasing the voltage of their computer as a way to generate more heat and "save" on heating, but it wouldn't be more economical than say, heat your home with a toaster (1 kWh electricity = 1kWh heat). It works, it's just not very efficient. So I was saying, assuming you have a heat pump, better send that little bit extra energy to the heat pump than increase the voltage of your CPU. (And yes that was tongue in cheek before anyone think I'm serious for a second) But yeah, if you have computer that produce heat, and you're having to get rid of that heat that's waste and ideally it should be used somewhere else.