BTU Calculator
Use our BTU calculator to easily work out what size radiator you will need, by entering information about your room in our calculator.
Select the room you are heating
Living room
Kitchen
Bedroom
Bathroom
Hallway
Measure your area(s)
Area 1
Width, m
x
Length, m
x
Height, m
x
x
=
*A 10% contingency added to the BTU value to support any heat loss from windows and doors within the room. Heat loss will vary depending on the type of windows or insulation you have installed in your room, therefore you may require more or less than 10% to account for this.