Here is a nugget of wisdom from @SteveUnruh to consider;
“Looking back at the last 7 years I see the most relevant factor to whether a person will join the one in a million who woodgas for usable engine power isn’t their skill as a welder fabricator,
their ability to do the maths,
follow along the thermal-chemical process
It really is predictable by their ability to Source, then Process, and then Maintain a wood fuel pile that will diminish at, at least a 200 pounds a day used-up rate.”
http://forum.driveonwood.com/t/are-you-a-one-in-a-million/488/16?u=chuckw
It’s easy to get seduced by the novelty and possibilities of biomass to power (and most of us around here continue to be), but the gritty, dusty, sweaty, reality will weed out the casual observers:)