Has anyone heard of a shower unit that connects to both hot and cold supplies, but also can heat water if the hot supply isn't warm ?
I can find electric showers with cold feed only, or showers with hot and cold feed via a mixer valve....BUT if you've no hot water it's a cold shower only.
It's ugly fitting two showers. We have overnight electric water heating topped up by an open fire 'back boiler' but if the fire isn't lit it can go cool by the end of the day.