BTU Calculator

Please find below a useful tool that enables you to calculate the BTU rating needed for your room and then search for matching radiator products.

There are many factors that affect this calculation including the outdoor temperature, thickness of exterior walls and the quality of insulation installed. You should also ensure you have a boiler that is capable of generating necessary output for all of the radiators in your property.

The BTU calculator should therefore be used as a guide only, so please contact us if you have any questions.