Electric Boiler Rating

[old wrinkly]

I currently have oil central heating and my boiler is a Boulter Boilers wall hung external Camray 15/21 rated at 65000Btu/19kW.

In view of the high cost of oil I have been looking at Electric Boilers as a replacement. So far the highest rating I have found is 12KW.

I'm don't know if I'm using all the output of my current boiler, it was just the one suggested when I had oil installed over 13 years ago.

Wonder if anyone can give me some advise as to how I can check what KW in an electric boiler I would need.

I live in a 3 bed semi detached bungalow which has cavity wall insulation and very thick loft insulation. I have 7 radiators ranging in size from 500 x 600 to 1200 x 600 and two towel rails 1500 x 600.

If I do change the system I will also replace my old copper hot water cylinder with a new foamed one.

I did read somewhere about needing to carry out fresh heat loss calculations for this sort of thing but I've no idea how I do that.

Thanks

 

[Corgigrouch]

If you are worried at the price of oil, then Electric heating will give you a heart attack....

 

[simond]

Oil and electric are around the same price at the moment.

The poster could put in a heat pump (air or water) but he might need fan assisted rads to get the max out of it.