Remote canister heating for deep cold conditions

@Edward

“how could you make something to keep the canister at a working temperature?”
Easy enough.
The canister will lose heat through 4 channels:
Conduction to the snow it is sitting on (large)
Radiation from the canister to the ‘sky’ (small)
Conduction to the ambient air (small?)
Evaporation of the propane as fuel leaves the canister (minor)

So insulating the canister from the snow is the big one.

However, you will need more than that. I put the canister right near the gap in the windshield so it gets some radiation from the flames: that helps keep it quite warm, usually above 0 C. Needless to say, the Touch Test (TM) is vital here for safety: monitor the canister temperature all the time. Warm, but not too warm.

That is not the only way of doing it.

This is from a video taken by a Norwegian group. Frankly, it worries me a bit. At the very least you need a hose which is longer than the normal ones supplied, and you need to make sure it does not get in the flames! Apparently it worked, but I would not do it myself.

Cheers