But what if you had a low-slung remote canister like maybe a Primus Express Spider?
... (snip ) ...
I suspect it wouldn't work because the Cone restricts air flow too much. Gas burners need a fair amount of oxygen. Insufficient oxygen would result in an inefficient flame and a lot of carbon monoxide emission. Interesting thought, though. I'm going to have to think about that one.
Now you've got me thinking: You could probably leave the wind screen partial open, giving more oxygen and preventing overheating of the hose. Not as efficient as the closed unit, but still way beyond most other crummy half-baked wind screen design.
I guess what I really want I is a wind screen for my gas burner that can do double duty as a Caldera cone wood stove.