How can I work out which size radiators I need?

Our BTU Calculator tool will help you identify suitable radiators for the specific room(s) in question.

As a guide, in our experience we’ve found the typical room size of the average 3 bedroomed house requires the following radiator sizes:

Lounge = 1400 x 600 double
Dining room = 1200 x 600 double
Kitchen = 900 x 600 double
Bedroom 1 = 1400 x 600 single
Bedroom 2 = 1200 x 600 single
Bedroom 3 = 900 x 600 single
Bathroom = 600 x 600 double