Navigation

Help Find Your Radiator

 

BTU Calculator

seperator
Please type your room dimensions below
Conversion:
seperator
seperator
seperator
seperator
Type of Room:
seperator
Additional Factors:
seperator
Required BTUs: From  To 
Required Watts: From  To 
These figures are a guideline base only

DRD BTU Radiator Calculator

What is BTU?

British Thermal Units (BTU) measure heat output from radiators. Some rooms will need more heat, and others less; it depends on the size of the room, its function, and the number & type of windows in the room.

When purchasing a radiator from Designer Radiators Direct, it's best to measure the BTU of your room so you can find the most appropriate radiator for it. Larger rooms are likely to require a greater number of radiators. Use our BTU calculator to find out what BTU and Watt output will efficiently heat your room.

How is BTU measured?

A plumber can get you the most accurate BTU calculation, but our BTU calculator is also very accurate.

Please note that the calculated BTU figure is the combination of all heat output in your room. This includes radiators and heated towel rails. Larger rooms, such as Living Rooms, may require several radiators spread evenly across the room. If this is the case, you should divide the calculated BTU between the number of radiators you need.

seperator

Need advice or help deciding?