Making biochar in the snow. This Flame Cap Kiln is 14 ga (1.9mm) steel and it weighs less than 200 lbs. It's an inverted, truncated pyramid with a bottom base of 122 cm (4 ft), a top base of 152 cm (6 ft) and sides 66 cm (26") high. Capacity is 1.2 cubic meters. Cost $600 to make in Oregon, USA.
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