I highly doubt Rick Bates's truck is in any way a good thing for the environment, but it's kind of amazing.
He cobbled it together from about $100 worth of parts, and it’s pretty low-tech. One of his fuel filters, for example, is a trash can filled with hay.
Here’s how it works: Bates loads about 40 pounds of wood chunks into the top of his gasifier, a stove-like contraption built from welded-together pieces of a hot water heater with a garbage-can lid. The wood is heated to more than 1,500 degrees Fahrenheit on a hearth made from old brake rotors, which can withstand the heat.
If you want to build one yourself, you can get started at Mother Earth News.
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