decomp

C ration Boonie Stove
The difference between this and my suggestion is the fuel used.

...this is the fuel we used in them. If this wasn't available ya could use C-4.
The candle won't get it quite as hot, but it will melt snow for drinking and ya can warm a can of soup to a palatable temperature. I wouldn't attempt to turn out an OUTBACK SPECIAL complete with a BLOOMING ONION with either.

Liberals are like a "Slinky". Totally useless, but somehow ya can't help but smile when you see one tumble down a flight of stairs!