I am getting ready to do some glassing on a few things to get ready to start putting this thing back together. My main question and concern is glassing in the garage with it being cold out. I have a furnace out there but I'm wondering about the fumes. I can open the window and run fans with one sucking the fumes outside easy enough but I don't want the furnace running wide open and I sure don't want the window open all night. I'm glassing the under the deck rod locker and the under sides of the consoles. I can easily keep the garage at 70-75 degrees but I don't want to leave the windows open or worry about the fumes and the furnace blowing the garage off the house.