How do I work out how big my Cast Iron radiator needs to be?

We can assemble Cast Iron Radiators in any design, with any finish to any size depending subject to your exact requirements.

The easiest way to work this out is to measure your room and input the dimensions into our BTU calculator. Alternatively, if you would like us to work this out please forward your room dimensions to us at or call us on 01723 321 000 and we will work it out for you.