[–] ardvarcus 0 points 5 points (+5|-0) ago 

I'm not seeing the utility of this device.

[–] iReich 0 points 1 points (+1|-0) ago  (edited ago)

It's an incredibly cheap and effective DYI device to produce heat https://en.wikipedia.org/wiki/Rocket_stove

Comes shipped with bonjour friday https://hooktube.com/EHIxwo-FHBw?t=8m58s

[–] whatdoesthereeesay 0 points 1 points (+1|-0) ago 

Oven on the go! For the 21 century white man.

[–] fusir [S] 0 points 0 points (+0|-0) ago  (edited ago)

It burns fuel a lot more efficiently and can concentrate its power onto a pot where as over a campfire if you tried to get the flame that focused on the pot you would end up smothering the fire before you got there.

Most are much smaller but this one is for demonstration. You can also run the flame horizontal under a house, a camping pad, or a bathtub to make an off the grid hot tub.