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Smaller immersion tank that heats up on cheap electricity rate?
We heat our immersion tanks at night. -
Maybe a heat battery. Sunamp are the ones I know about. I’m considering sunamp as we don’t have space for a water tank once our oil combi boiler goes.
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The thing you're describing is called an instantaneous water heater, and they come in endless shapes and sizes, tanked and tankless.
(tankless ones use no power when the tap isn't running, but need a high amp electricity connection if you want more than a warm dribble)
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You get small unvented water heaters, they are like 10L and take not long to heat up.
I have fitted a few in take aways or salons.
skinny
JonD
grams
konastab01
@t.o.
My house is all electric (ancient, never had central heating installed, off gas grid). I currently have a ruinously expensive immersion heater that is only needed for 3 hot taps (no bath, and shower is electric). What’s the best way to heat that much water? Presumably I can get some sort of central heater that heats it as you need it and pumps it to the taps, rather than storing hot water I don’t use much of. Like an electric combi boiler but only used for taps, not central heating.
[I am working on insulation, and I have the best storage heaters, which are terrible, but I’m not going to put a whole central heating system and heat pump in, I can’t afford it and I’d never see a return on it]