Posted by Sam in Ohio on Tuesday, October 01, 2002 at 12:37PM :
In Reply to: Heating a garage? -O/T posted by Dale D. (NM) on Sunday, September 29, 2002 at 9:49AM :
I use a sealed combustion natural gas unit (92% efficient). There is no open flame to worry about. I have a 36X36 space in an old barn. Another nice thing about this furnace is that it vents through PVC not a chiminey, so I didn't have to put one in. The downside is that since these produce condensation, they can't tolerate freezing, meaning it has to be left on at all times. I keep my barn in the low 50s.