"Back in the old days," in the '70's and '80's, during well below freezing temperatures in Wisconsin, I would leave my Hammond M3 and Fender Bassman 10 amp in our bass players van non-stop.

All I needed was to get to the job 15-20 minutes before we started. I had the back covered with pegboard which had a small hole cut into the top half of the organ where the tone wheels generator was. I would just pull out my trusty portable hair dryer and de-thaw it, and off we'd go. I remember the concerned look on the guys' faces.

God, those were the days. lol

Scott