Use the options below to calculate your heat output requirements for both central heating systems (BTUs) and electric heating (watts). You can save every room in your house and then print out the results.
Central Heating: Requirements for Water Based, Piped system.
Electric Heating: Requirements for Electric Only heating.
Room Name (Optional)
External Wall Type
External facing wall length
Total Lengh of all walls facing outside, in a typical home this will be equal to the length+width of the room.