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Hi All. On the recommendation of a few here I am using the Kermi Heat Loss calculator which I have found to be great once you put in the time and know the building construction but I do have one query. I reside within a first floor apartment with my own ground floor entrance, only two...

Hi. I used the Kermi calculator to work out the following calcs. First Floor Apartment. Attic above, 300mm insulation. Non insulated concrete follow assumed temp of 10c. Non insulated cavity walls. External walls factored into tool. Not factored in is the fact site is very exposed...