I've got a 2 car unheated attached garage that is very well insulated with top of the line insulated garage doors. It never gets cold enough to freeze in there with all the heat coming off the engines and catalytic converters of my truck and car when you drive them into it. I know this for a fact because all winter long I have a puddle on side of the garage where my dip-

cement contractor made the floor about a half inch lower than the floor drain. Even at 20 below the garage stays about 40 degrees.