a fire box is used to create wood gas as Mr. Lang stated.
If you burn wood at temps greater then 400' then petrolem by product is created . you funnel the smoke and lead it into your generator
interesting video. cool looking inline ford generator.
you know one thing I was thinking about. say we were in "martial law" and they flew over and emp'ed us, your truck would be sure to draw the attention of drones. (if your the only non military vehicle moving around.)
