Wood Gasifier Builder--39-s Bible- Transform Tree Branches Into Now

The Wood Gasifier Builder’s Bible is not a sacred text. It’s a stack of Xeroxed schematics, hand-drawn diagrams, and notes written in Sharpie on plywood. But it contains a truth that feels almost biblical:

A gasoline engine expects vaporized liquid fuel. Wood gas is dry and has a different air-to-fuel ratio (about 1.2:1 by volume, compared to gasoline’s 14.7:1). The Wood Gasifier Builder’s Bible is not a sacred text

“I felt like a caveman,” he says. “Digging a hole to bury gold.” Wood gas is dry and has a different

John McGrath’s original “Bible” has now been scanned and shared online. A free PDF version, including dimensional drawings and parts lists for three different gasifier sizes, is available through the Open Gasifier Project. A free PDF version, including dimensional drawings and

Don’t modify the carburetor. Instead, build a “mixer” that fits between the air filter and the carb throat. It’s just a pipe with a venturi (a narrowing) and a needle valve to bleed in extra air.