The wood you're burning changes everything about whether wrapping helps or hurts. I ran unwrapped on hickory for years and got great bark, then tried the same thing with apple and it came out pale and blah. Fruit woods burn cooler and wetter so the surface stays damp longer. Now I run cherry or oak for the first 4 hours unwrapped no matter what, then decide based on how the bark feels with my finger.

What exactly happened when the Jetboil died on you? Was it the igniter crapping out, the regulator freezing up, or did the whole thing just quit lighting? That matters a lot because if it's a cold gas issue, no canister stove is gonna save you at 20 degrees, fancy or not. And how long does the tin pot actually take to boil compared to the Jetboil, like are we talking a few extra minutes or double the time? Just trying to figure out if you found something real here or if the cold was the actual problem all along.