He's sort of a superhero... At least he'd like to be, but he can't seem to win acceptance.
His vaporous companions: silent & deadly... creep upon evildoers unaware.
Well... upon everybody, actually. (um .. and don't pull his finger.)
Jean Pain was a Frenchmen who created an ingenuous integrated system consisting of a large pile of chipped forest wood brush (up to 40 tons) with a bio-reactor in the middle and plastic piping spiraling through the pile to absorb the heat of decomposing wood mass. It produced: