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I, hopefully, will be converting from oil to gas in the near future. About 10 years ago I added on to the house and converted my heat to radiant. I had Northeast Radiant Tech. set up my system. Part of that was providing them with all room measurements, window sizing and r values, floor materials, wall insulation, etc. How does that relate to a heat loss calculation?
Rest assured, this will be the first of many questions as I get closer to the actual conversion.