Hi,

Does anyone know if I can run a 12kw pool heater from a single phase domestic circuit. It needs atleast 53amp apparently on an RCD? I have  a seperate off peak box which is no longer used. Is it possible to use again - just get it changed for one single rcd, as the max it says on this is 60amp?

Thanks.

Do you have gas - you'll find it cheaper to heat a pool and you may have enough capacity on your existing boiler (if you've got one)

You would use a heat exchanger.  These have an inlet and outlet for the white filter pipework, and then a standard flow and return for a boiler, typically 28mm pipework.

You simply treat the heat exchanger as a radiator or cylinder.  You have a 2 port zone valve, a pump, and of course, the boiler.

It is often specced by plumbers to incorporate an interlock with the filtration pump to ensure the boiler cannot heat the heat exchanger unless the filtration pump is running.  Plumbers also often request an overrun timer is installed (such as a multi function din rail timer) to keep the filtration pump running on after the boiler has stopped.

Pools that are used all the time usually have the boiler and filtration running 24/7.  Domestic pools usually only have the boiler and filtration running a few hours a day.

I would look to use the oil boiler - It is bound to be cheaper.