Thanks for the pointer. Wood-gas was not a term I would have known to=20 search. This looks like an interesting article. I remember a WW II soldier returning home with a story about a taxii=20 ride somewhere that had a wood-gas system. He said the driver would have to stop to tinker once in a while but it=20 worked well. On 4/21/2012 11:37 AM, John Gardner wrote: > Given your timber lot, another option is wood-gas, so-called. > > http://en.wikipedia.org/wiki/Wood_gas --=20 John Ferrell W8CCW =93During times of universal deceit, Telling the TRUTH becomes a revolutionary act=94 George Orwell --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .