[Perfect Windows]

Good point. And the maths is the same: if you're on the EV tariff and you heat the water with the immersion heater, again you're looking at about £1.50.

One of our guys had an immersion heater fitted and, with an inch of Celotex insulation, it would stay warm enough all day.

Vin

[the king]

a immersion heater sounds ok but running a thermo pure would be better as you get much hotter water im not sure if they added to leisure batterys as a buffer to the main van battery ?

[the king]

https://www.youtube.com/watch?v=e8uveArWkhc&t=31s&pp=ygUYc3RyZWFtbGluZSBkaWVzZWwgaGVhdGVy

[Perfect Windows]

Another thought. Charging the van battery and running a 3kW immersion at the same time would add up to about 50 amps running through your house wiring. Not insignificant and worth checking with the sparky fitting the EV charger.

Vin

[windowswashed]

Extension lead for van has a maximum of 3150 watts fully unwound but 720watts coiled on reel for a 13amp extension lead which would start a house fire as the lead would melt for sure if running 3kw immersion heater and that's without using a battery charger.

[AuRavelling79]

Extension lead for van has a maximum of 3150 watts fully unwound but 720watts coiled on reel for a 13amp extension lead which would start a house fire as the lead would melt for sure if running 3kw immersion heater and that's without using a battery charger.

When I had a 3kw element I used a 16amp caravan socket.

But when I changed tanks I went for 2kw and reverted to standard 13 amp plugs.

[AuRavelling79]

Another thought. Charging the van battery and running a 3kW immersion at the same time would add up to about 50 amps running through your house wiring. Not insignificant and worth checking with the sparky fitting the EV charger.

Vin

Yes. And if you are future proofing you might want to consider that your house might be supplying two EVs (van and family car) and an immersion.

Always check with a qualified electrician.

[Ched]

Another thought. Charging the van battery and running a 3kW immersion at the same time would add up to about 50 amps running through your house wiring. Not insignificant and worth checking with the sparky fitting the EV charger.

Vin

Quite often the sparky installing the EV charger will ask the DNO (Distribution Network Operator) to install a 100Amp supply fuse it the incoming cable is of sufficient size.