Even if you do heat the canister using aluminum (or whatever), you still have the problem of wind, which, in cold weather, can cause you to burn through an entire tank without ever bringing your water to a boil. I think using a windscreen to hold heat, thus keeping the fuel vaporising, might work better than a feedback mechanism like what you're showing.
As has been mentioned, for winter use, maybe an inverted remote canister is worth it. You're likely to be using a bigger pot since one typically needs more volume when melting snow; inverted canister stoves tend to be more stable. You can also use a windscreen with complete impunity with an inverted canister stove; you never have to worry about the canister getting hot. Lastly, with an inverted canister, you eliminate the problem of "fractioning" (where the propane content burns off first), so your fuel performance is more uniform. You also have more uniform pressure since the LPG fuel is not reliant on the temperature of the canister for vaporization; vaporization happens in the "pre-heat" loop of the burner.