In article ,
Stephen wrote:
Sorry, perhaps I should have made myself clearer. I used one of the
online calculators which asks for room size, whether it's north
facing, if it is double glazed, etc. and told me the radiator size
that room requires. It was those figures I have added up. Whether the
radiators that are in the rooms match those figures is another matter!
They were here when I moved in.

Well, did the original boiler cope? If so just replace it with one of the
same size. If it didn't - was it the boiler or wrong sized rads?

--
*Why is it that most nudists are people you don't want to see naked?*

Dave Plowman London SW
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