Radiator Calculator

Estimate your room’s BTU/watts requirement below.

Room Information

Room type

Are the windows double glazed?

Is the room north facing?

Does it have French windows?

Has it 2 or more outside walls?

Has it cavity wall insulation?

Room Dimensions
Metres Feet Length m Width m Height m

Please enter valid room dimensions and choose your room type to see result

The calculator results shown above should only be used for guidance and are not guaranteed to be correct for your requirements as every project is unique.

Radiator Calculator

Room Information

Room Dimensions