Stroked, thanks for the post. I know that temp is important when painting and propane can dump a lot of moisture into the air which is also not good. In my attempt to avoid wasting hundreds of dollars worth of paint, I did a little "soul searching" last night and figured out what it was that I really needed/wanted to do. I'd like to at least get the under side of the hood, under side of the fender and inner fender painted so I can get the car put back together. I can paint the outer surfaces later when it warms up. I have some body work and painting to do on the jeep itself so I could do those outer surfaces all at once. If I could get the jeep back together, I could pull it into the "porta-booth" and keep busy doing the other body work. It's supposed to get up to 56 this Sat so that's going in the right direction. My shop/booth is leaky enough that a propane heater may not cause problems with moisture...I don't know. Home Depot rents those for $17 a day. I have a few days to keep mulling it over.