I wish to install some central heating radiators in my home and I was advised the other day that the formula for working out the BTU requirements for a room were:-
Find the volume of room:-
Length x Breadth x Height
To convert to BTU's multiply by:-
4 if room has 1 outside wall
6 if room has 2 outside walls
8 if room has 3 outside walls
For a room having 1 outside wall and 1 adjoining party wall, then add 1 so calculation would be:- length x breadth x height x 5
Can anyone verify this for me please.....?