The sawdust stove is efficient, effective, clean, and fueled by a material that is typically discarded as waste. Here is how to build one.
The next three steps: 4) Insert a stick about the same diameter as the hole. 2) Pack dry sawdust (it's very important that the sawdust be dry) in around the stick, as tightly as possible. 3) Remove the stick. A cylindrical air column should be left in the middle.
Pictured here are the first three steps in making a sawdust stove. 1) Find a can 6" to 8" in diameter. Cut off one end. 2) Cut a small hole in the other end. 3) Set the on three legs.
ILLUSTRATION: KAY HOLMES
The final steps: 7) Insert a sheet of paper into the column. 8) Light the paper. 9) The sawdust will burn slowly and for the most part cleanly from the center outward, although the rate will vary depending on the diameter of the can.
Possible modifications to the sawdust stove include adding another can to the top to function as a radiator and/or burner.
Another version of the stove that uses brickwork, rather than a can, and two sticks rather than one to to provide an air channel.