ditto on the paint fumes and ignition sources. I remember as a kid my nieghbors owned a fab shop in town and while he was primering a steel framework an employee at the other end of the shop was grinding. Kaboom . . . instant inferno.

Husband and wife died of severe burns within 3 days of the accident. Volatile fumes are dangerous and you need to take care to evacuate them and remove all sources of ignition. Painting in cold weather is simply not an easy thing to pull off.

Warm the room and body panels up and then shut the heater off. Use low temp solvents and allow plenty of time for the primer to flash before recoating. Have an exhaust fan in a window blowing out. This will pull air in from outside to clear the fumes before starting the heater back up again.