wonderful, good to know, thanks

excellent, thanks for the info

well i dont exactly have any way to burn fuel around here, so all i got are resistors or heat pumps. lol. im in IL, so not that far away. 0F and falling to the same -9F low. apparently we have the same low temperature from st louis to winnipeg, it's a massive blast of fairly homogenous air

hmm, so if it's -10C or -20C outside, and inside i want it at the usual 21 or 22C, then my cop might drop as low as 2? for residential purposes

cool, so 2.5-3 is totally achievable for residential/end consumer purposes. is that what residential air conditioners achieve as well?

well i dont know what mine is, but i'd always assumed it was a heat pump exactly since it is indeed 2-4x more efficient than simply dumping a whole bunch of power into heat thru a resistor. but it could be resistive heating for all i know.

and if there are indeed heat pumps with 400% heating efficiency (or CoP or whatever we want to call it), then probably 300% is a very achievable number for even "merely" residential purposes, one would assume?

right, but do residential heat pumps actually reach 300%, or do they only actually reach 250% or 200% or whatever and 300% is only possible with industrial heat pumps?

well by default i assumed it wasn't resistive, but it could be for all i know. but i assumed that since heat pumps are more efficient that it would be a heat pump

> We can input up to 3 times less electric energy for the same transfer of 'heat' energy in a very efficient heat pump.

[edited] how close do residential electric [heat pump] heating systems reach this number? in other words, how much of a waste is it to heat my place via use of [resistive] stove/oven rather than the central electrical [heat pump] heating?