A friend of mine has an electric shower that is playing up. She said it is 11kW but I know the largest MCB in her house is 40A so something is wrong either way. Replacing cable, etc, is not really on so I am wondering what sort of suggestions folk have for an electric shower in the 9.2kW region that works with low-ish water pressures and keeps a sensibly constant temperature.
TL;DR Best shower at 9.2kW
TL;DR Best shower at 9.2kW