Charcoal

Vuthisa, November, 2009

They have kindly put together a great How to Make charcoal in your own backyard

I recently did some trials with 2 x 55 gal drums inside my fabricated Portable Metal Kiln. I recently increased the kiln width from 1.1 to 1.4 metre diam to accept 3 x 55 gal drums and although more testing is required I am satisfied with the MO. I have created a Google Group to discuss issues around its construction and usage. http://vuthisa.com/biochar/
Cost: Under $800
Availability: DIY

Regards
Kobus

Updated September, 2012:

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Biochar Trial Photos
Empty Planting Trays on Rack Fine Wet Processed Charcoal Settling in Flask Bamboo Feedstock Softwood Chip Feedstock
Empty Planting Trays on Rack Fine Wet Processed Charcoal Settling in Flask Bamboo Feedstock
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he author, Gary Gilmore, explains how he designed a charcoal retort from steel drums. This is a smoke free design also the flare could be put to use.

Charcoal by Gary Gilmore video 1

First make the retort by adding air holes to the bottom of a steel drum.
Then make the afterburner by turning another steel drum into a tube.

Then start loading the wood (no more than 20% moisture) tightly packed into the retort. (This contains a great description of wood as nature's battery).

Charcoal by Gary Gilmore video 2

Once you have the wood packed in the retort, build a small fire on the top. (There is a nice description of a top lit retort system). Once the small top fire has caught, ad the afterburner (the tube) to the top of the retort.

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