Most of the online calculators are from Britain and calculate in metric and the output is in kWh? Anyway... next question. When calculating the square footage of the home, does one include the basement? My house has a full basement, uninsulated and not heated. The boiler is located in the basement and the heat radiating off the boiler keeps the temp down there comfortable. Since there are no radiators down there, do I include it in the sqft calculation? And do we use internal or external dimensions? |