I have a little wood shed that I scroll in. In the winter months I use a propane buddy heater to warm up the place. It is small so doesn't take too long to heat. I just go and turn it on then come back and have my coffee and what not for about an hour or so, really depends on how cold it is outside. When we hit negative 30-40 this last winter, I did not even bother to scroll. Like others, I bring all my glues inside. Our big shop is not heated either. We use a wood stove there and works fine for us.