The methane tanks as described in other posts worked well in India when I
was there. It cooked our meals and digested the cattle's dung. A few years
later I learned there was one catch. They tended to explode sending the
steel tank flying into the air and come earth and break after several years
of very useful service. That is because people liked to smoke, could not
read, and no posted signs anyway. It is a technology that needs care and
understanding: Walls, Fences, Safety equipment, signs, to a "code" etc. They
had none of that in India with the expected results.
Harold Waldock
Vancouver Permaculture Network
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