Hello - I've been racking my brains to see whether an electric water heater could take the place of my ageing Main Medway gas heater. Thinking electri c because there's very little room on outside walls for a combi boiler. My flat is a modest 2 bedroom and there's just the kitchen sink, bathroom sink , bath and shower. In Europe many domestic homes have 3 phase wiring and 40
0v electric heaters, but good luck if you could have this fitted in Kensing ton, London.The 230v tankless options seem largely to go up to around 10Kw which should be OK for kitchen sink and a rather puny but serviceable shower e.g. Mira. Main problem is Winter when the water gets cold. But I have seen some larg er more expensive Bosch and other models which may be more efficient.
Going back to basics, to fill a bath you probably need a tank with electric heating. But rather than the tank being on all the time, just switch over to the tank when you want a bath, and leave it off most of the time for tan kless operation. Also, the tank would not need to be the full 80 litres of an average bath - could be just enough to get the water hot and top up with tankless operation. Maybe 50 litres or less. Also the tank has to be heate d to over 50* to kill bacteria.
Is there any way I could get away with electric heating? What are my option s?