I currently have a Gledhill Pulsacoil 2000 water heater in my 2 bed flat and am having countless issues with it and I have decided to get it replaced - but am not sure where to begin.
There is no gas supply in the flat. The heaters are electric and so I do not need a combi boiler, the sole purpose is to heat the water. Good hot water pressure is important. The space does not allow for venting. The mains water pressure is very good.