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light it near an open door and try to heat the inside of the vehicle while somehow avoiding the smoke?


I've read that a vehicle is a heat sink and if there's enough snow it's better to build a snow trench or build a shelter but you need the material like a collapsible shovel, two Evazote® foam pads and a winter sleeping bag and a small home made stove made of tea candles but it takes room and this is theoretical. (I'm not analysing or criticizing this scenario)

Frankie