A CLEAN-BURNING COOKSTOVE THAT’S specially designed for use in the developing world: “These stoves reduce smoke and harmful gases by up to 80 percent, reduce fuel use by up to 60 percent and reduce cooking time by up to 50 percent compared to traditional cooking fires and stoves.”
UPDATE: Reader Perry Beeson points out that you can get it on Amazon. Might be good for disaster-prep.
ANOTHER UPDATE: here’s the spec sheet. (PDF).