Magh CM-II natural draft woodgas stove http://e-maghcm-ii.blogspot.com/, it is a very low-cost stove for heating and generating charcoal. It can also be described as a mini-charcoal making metal kiln. Instead of incinerating biomass generated from home gardens / any other dry combustible material generated as household waste usually throw into the garbage bins, can be used here. The leaf litter, dry twigs / sticks, chips of wood, wood shavings, etc., are very much suitable.

The steps involved are
Put the biomass into the combustion chamber
Spread a thin layer of biomass soaked in kerosene for lighting purpose
Using a match stick start the fire from top
Use the heat for heating water, cooking, etc., by placing the container on the two supporting adjustable rods.
At the end of fire, shut the primary air by closing the shutter at the bottom
Cover the stove with a flat and heavy lid
Let it cool for some time
Turn the stove sideways for unloading the charcoal produced
Sprinkle water for retrieving the charcoal (this is a quick procedure for
retrieving the charcoal).

The dimensions are 13 inches height, 8 inches length and 8 inches breadth,
15 liter tin can, most commonly available in India which is used to create
this stove. The cost of each stove is less than $2 (USD). This is under
testing presently, suggestions would be of great help in improving the
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