Today I made a Rocket Stove.

A Rocket Stove is "is a type of stove combining the air-intake with the fuel-feed slot in an opening terminated by the combustion chamber, further leading to a chimney and heat exchanger. A rocket stove is signified by ease of construction and simplicity of building materials while accepting small-diameter fuel such as twigs or small branches, yielding high combustion efficiency and directing the resultant heat onto a small area."

Thank you Wikipedia.

Basically, it's a cylinder surrounded with insulation that draws and preheats air though the fuel slot, thereby making the fire hotter and the air more combustible, or something like that.

I had a friend show me his design and I attempted to recreate it. I decided I wanted to try and not pay for anything, which is possible. I wound up paying 500F ($1) to have the cans I used welded together, which in retrospect, wasn't necessary. I found or was given all the other materials.

I started by finding three tomato cans which I hollowed out to make a cylinder, I then added the smaller perpendicular fuel access can. Then I slapped some mud on a piece of wood to create a base. I enclosed the cans with a sheet of zinc and the filled the gap with ash.

The overall point is to create a more efficient stove and avoid using charcoal. Because the of increased heat and combustion, it works far more efficiently.

My host family said they would test it for me and see how it works. It did manage to boil two liters of water in 10 minutes. I thought that was impressive for only using a few sticks.