jeebus @ mmw
+1y
When i replaced the furnace in my house, i put the old one from the house in the garage, and hooked it up to my natural gas. Works wonderfully, when im not out thare, it keeps it at about 40 degres, when i am out there, it only takes a minute or so to snap it up to 70 degres. My garage is insulated pretty well also, so that helps alot too. Taylor