Step 14Credits
This design closely models http://tjamrog.wordpress.com/2008/12/22/the-evolving-backpacking-wood-stove/, by Tim Jamrog. His design has holes in the bottom of the inner can, rather than the bottom sides, and this is known to work well. I'm working on a design with a solid bottom, for various reasons including catching the ash and embers. As I've indicated, it works, but it could work better, and I think larger holes on the sides of the inner can will help. For just under six bucks in materials, experimentation is easy.
For those wanting the lightest weight and blingiest gear, the Bushcooker LT from http://www.fourdog.com/index_files/bushcooker.htm can't be beat. Titanium won't rust out, ever, and the LT II, which is closest in size to this model, weighs a wispy 3.5 oz.
Making stoves is easy, fun and satisfying. Experiment to your heart's content, and let me know what you come up with.
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You could have it burn better by adding a grill-type floor/level inside your burning can, slightly higher then the airholes at the bottom. This will have the fire air-fed from below. Making a more efficient burn, while ash will find it's way through the grill. The sticks will lean on the grill-floor which optimizes airflow. Your fire will reach optimum temperature a bit faster.
I hope this helps.