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Biochar Burners
can bucket barrel tank masonry mound mobile industrial
2-Barrel Nested Retort
Barrel+Bucket
Folke Gunther, Sweden

April 2008

We are grateful to Folke Gunther in Sweden, who devised this most simple, elegant, easy equipment to safely make reliable batches of backyard biochar.

Folke's simple 2-barrel retort allows newcomers to experience the thrill and wonder of gasification.

We encourage people to begin to imagine what else can be done with that gas besides burn it off right away.

webpage under construction
simplest of the simple
Barrel+Bucket
Folke Gunther, Sweden
PHOTO 3 PHOTO 10 PHOTO 13 PHOTO 15


David Yarrow dyarrow@nycap.rr.com www.carbon-negative.us updated 12/15/2008