Susan.. my Trangia store bought reaches about 2 1/2 inches to the bottom of my Swiss volcano stove cup... the Trangia really roars in the surplus stove, much better than a couple of the penny stoves I tried to build...my testing of the penny stoves was with isopropyl alcohol, which unfortunately the Trangia does not run well on either... I gave up on the penny stoves before buying denatured alcohol for fuel, as I considered them too flimsy for what I was looking.... weight was not a consideration