Had the tubular model (not collapsible) rocket stove fired up in less than 1/2 hour of it arriving. A wad of newspaper down the chimney, a small handful of sticks on top, light the paper thru the open end then gently start adding sticks into the fuel opening as it gets going.To the people who cry and say it's too hard to light, doesn't burn well, etc., they need to turn the snorkel into the breeze or no, of course it won't draw as well. Thought most people intuitively know this, but there ya go. Add heat, decent combustible fuel and oxygen, trust me, your fire will be smart enough to make the stove work. Had water boiling in about 5 minutes, which was about 5 minutes after getting it going well enough that you could keep sliding sticks into the chamber without disturbing the burn.The construction of the tubular style is very robust, will easily last many years. Everything fit together as it should, overall I'm quite pleased with it and should have snagged one sooner.