> If their claims are correct then it would sound like a wood fire > is not achievable above about 6000 feet. Sounds wrong. Mexico City is over 7,000ft elevation, and inhabitated places above that. Where it's cold. And you need a fire -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist