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Dear Kevin,
Can I propose an alternative contest? Seeing who can boil one
litre the fastest tests what stove can blow up all the wood at once, which seems
to have less than optimal correlation to the real world of fuel efficient
cooking. But, I love the idea of a contest and Aprovecho would throw in another
hundred dollars to the builder of the stove that:
Using a twelve inch in diameter pot and ten
litres of water can achieve 50% fuel efficiency figuring 8600 BTU's per pound of
wood, 1005 BTU's per pound of water boiled away, when burning two pounds of
wood. As of today, the Rocket could edge into the 40%s with fancy skirts so I
know that we wouldn't win this prize. Be worth a hundred to see who could. No
fans, made from vernacular materials, cost less than ten dollars.
How about it?
Best,
Dean
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