There is a formula for calculating heat loss in a building, however you need the R value of your walls and ceiling. I doubt if plastic will provide an R rating of 1. If it did, you will need 66,800 BTU's/hour to bring the temp from 10 to 50. It is always nicer to have too much horsepower when it comes to a furnace than too little. This does not factor in air leaks or raising the temp of the floor. Trapped air is an insulator. If you used 2 layers of plastic with as much air space between them as possible, it should take less heat. However, plastic can catch on fire, be careful. Try it and let us know how it works out.
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Today's Featured Article - Women and Tractors, A Woman's Touch - by Teri Burkholder. I thought I would give you a little background on how I got myself hooked on tractors and their restoration. My family is a very "crafty" bunch of people. By crafty I mean good with crafts!! My Dad is a retired industrial engineer from Bucyrus Erie which made big shovels for excavating and he is also a wonderful wood worker. My mom and my "guardian angel" has had her own ceramic shop for 30 years and is an excellent painter. With these skills always active in our house it was hard not t
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