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View Diary: The Establishment of Soil Carbon as the Universal Measure of Sustainability (22 comments)

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  •  Home Made, Low Tech, Clean Biochar; (0+ / 0-)

    One of the best home made TLUD (Top Lit Up-Draft) stove designs to make biochar. TLUDs control air flow so must have porous/loose/dry feedstock, the primary air must travel through. They burn like a match, the flame protects the wood from oxygen combustion to ash as the hydro-carbon gas burns and the char remains;
    JRO; TLUD / Retort hybrid;
    http://www.youtube.com/...

    The simplest can-in-can retort;
    http://holon.se/...

    •  Umm, Erichj . . . (0+ / 0-)

      that second link is dead.  And the error message is in a Scandinavian language.  I'm afraid you're dealing with Americans here; very few of us are linguistically competent outside of English or maybe Spanish.

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