[markem]

I smoke in my garage all the time in the winter. As long as the wind isn't blowing at the garage door opening, I open the double car door, leave the single one closed, use a space heater and smoke near the opening of the garage. When done, I put my ash tray outside where it won't tip over, start a fire or stink up the garage. I've been doing this for years. Of course, I have a large collection of hoodies and wool blankets from Goodwill to keep me warm.