This is how to build your own Wood Gas producing wood stove that can be used to run a vehicle or generator, this works for replacing propane in most standard propane appliances. This simple unit was made from three small propane tanks and scrap material. NEVER CUT INTO A PROPANE TANK EVEN IF IT HAS BEEN LEFT OPEN AND EMPTY FOR MORE THAN A YEAR!!! BUY ONLY FACTORY EMPTIED OR NEW TANKS, THAN FILL THEM TO THE VERY TOP WITH WATER AND KEEP THEM FULL OF WATER AS YOU CUT THEM!