It goes without saying that you should always be careful around an open flame, observing precautions to keep flammable objects at a safe distance and the flame source in a stable position. In tight quarters be sure to have adequate ventilation. The following is a set-up that I have used successfully that you may find helpful. The objects needed are a metal coffee can, a tea-candle, matches or a lighter, and a blanket, sheet, poncho or other body cover.

In a sitting position I place a coffee can on the floor between the heels of my feet with the open end up. Then I place a tea-candle inside the can along the bottom edge. This position allows room for my hand to reach in with a match or lighter to light the candle. Once lit, I reposition the candle to the center of the can to provide even heat and a safety zone. Next, I place the blanket around my shoulders and over my lap which forms a tent-like covering. This captures the heat that rises from the candle and holds it around my body. The can enclosure shields both the flame from the wind, and adjacent clothing from the flame.

This heating set-up would be good to store in your vehicle on the occasion that you might get stranded during a Winter storm.