The Trangia takes alcohol - usually I feed it denatured alcohol from the home center. Operation is extremely simple, but I would recommend playing with it a bit before packing it away. I keep my alcohol in a stout plastic bottle (500 cm capacity) which resides within a fairly solid container. If the fuel bottle ruptures in an accident, I will be dealing with much larger problems, if I am dealing at all.

Parking inside should be much more felicitous. My car is exposed to the merciless California sunshine. Vehicles make great solar cookers.