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Maximum cop on electric heating will be a theoretical 1.00
With a HP you should be getting c. 4.00.This means for every 1kw of electricity put into electric UFH or radiator you will get 1kw of heat.
With HP for every 1kw of electricity put into your HP you'll get c.4kw of heat energy.
Nahguavkire-
Yeah I get that, it was the comparison between electric direct and electric boiler feeding a wet system that I found interesting.
Your HP will pretty much be 1:1 in the middle of winter when you need it most, no?
At least 1:4 isn’t the minimum efficiency they run at, is it?
Fwiw to get either to feel like a really great solution I think you need solar panels to feed them and a really well put together house.
Howard
Out of interest, what makes electrically heating water then pumping it around better than electrically heating the floors?
The later should be maintenance free and much less of a headache to install and use but obvs. if it costs 10x to run or something…