Gasifier

Gasifier construction set:

http://allpowerlabs.org/gasification/gek/index.html

Mike Koch's gasifier, U. Missouri, Columbia, 2008 Capstone Project, Mechanical Engineering:

http://openfarmtech.org/BiomassGasifier.ppt

A gasifier can also be used to make BIOCHAR. Here are some simple design examples for charcoal/biochar-producing biomass gasifiers:

50 kilowatt wood pellet gasifier

Charcoal kiln at A.R.T.I.

Folke Günther's design: "the simplest of the simple - a two-barrel charcoal retort"

Tom Reed's TurboStove