I think his claim is about the heat transference from the titanium stove pipe.
Titanium does not hold onto the heat, like a steel stovepipe, thus, steel runs more heat out the stack.
I posted the stove, because it is titanium. Yeah! and because it is lightweight. Yeah!
And, I forgot. Oh, yeah, it is interesting and lightweight.
So there, naysayers.
DarenN, 6x6x6 twig stove
I think it is not much bigger than that: looks like a Grease pot is on the stove.
I have a steel "ice house" wood stove
. I have to have the windows open in a 16' travel trailer, in Montana winter.
I have wood stove door gasket material around the door of my "ice house" wood stove: a few twigs, a piece of bark, and it is roasting me medium-rare.
I don't know how you could make a portable "take-down" wood stove air-tight.