We can work it out
This handy calculator provides a rough guide to how many British Thermal Units (BTU) are required to heat a typical room. Once you have your BTU reading you can compare it with the radiator recommendations chart at the bottom of the page.
- Add the square footage* of your room
- Select Zone 3 (if you are in the UK)
- Hit the Calculate button
Compare the result with the list below to get a rough guide to which radiator is right for your room. If in doubt you can always contact us for free advice. Please note that the radiator recommendation applies only to our products. Other radiators are less efficient so you may need to buy larger radiators, or more radiators.
*If you only have metres just multiply by 3.2 (eg. a room is 4m x3m = 12m, or 12.8ft x 9.6ft = 129ft ish).
BTU Heating Calculator
| If your BTU reading was...
1500 - 2500 BTU 3500 - 4500 BTU 5500 - 6500 BTU 7500 - 9500 BTU 10500 - 12000 BTU |
You need radiators with a maximum output of...
500 - 700w (eg. Bathroom) 1000 - 1200w (eg. Small Bedroom) 1500 - 1800w (eg. Kitchen, Large Bedroom) 2000 - 2800w (eg. Lounge, Dining Room, probably 2 radiators) 3000 - 3600w (eg. Very Large Room, at least 2 radiators) |
