Dec 18th 2009 10:12AM I friend of from school was in Air Force in one of the Dakotas - he said in their training they were told to keep candles also - one burning candle inside the car is supposed to give off enough warmth to help keep one from freezing. I don't remember if he said to keep a window cracked open or that asingle candle would not consume too much of the oxygen to woory about it - more (candles) is obviously not better here. Suggest NOT using gas feed lires inside either! I beleive "hurricane" candles (???) were recommended - about an inch in diamemter and 6 inches tall.