
Got a heat pump so now long showers use much less energy.
Now makes me wonder what the COP is during the summer, if you time the shower so that the heat pump works during the hot part of the day it should be pretty high. 30°c outside, barely needs to work to heat the water.
I got the heat pump and all pipework/radiators replaced, the government paid for a bit over half of the total cost as they give you £7.5k now toward replacing a boiler with a heat pump. Plus everything is VAT free as part of the install, so it was pretty much no more expensive than doing the same thing with a gas boiler. The pipework kinda needed replacing anyway, it was shit. Putting more efficient radiators on is a fairly small job when you are having all the pipework replaced already.
Got it done before moving into the house when we bought it, if you already live there I could see it being quite disruptive.