Which electric shower kW rating do you need? For most homes 9.5kW is the sensible default, but the right answer depends on flow, winter water temperature and your circuit. This guide uses the Aqualisa eVolve datasheet to compare 8.5, 9.5 and 10.5kW flow rates, explains why more power does not mean a hotter shower, covers MCB sizes and Part P, and runs a worked winter en-suite example.
Hotel & HMO refurb
Electrics, bathrooms, hotel housekeeping and fire safety from a single supplier. BOMs by room type, UK compliance checklist.
Read the hotel refurb guide

