R. Scott :
I Think the Whole build is actually much simpler than you are making it ! I am sure that the pyrolyzed gases re-directed to the combustion chamber will complete
the total combustion to bio- charcoal.
Given the original expectations, producing bio-char, a failure to achieve total conversion to charcoal ( that will be buried in the Ground ) is a non issue !
If we were trying to achieve total carbonization to allow the further Pyrolization of Charcoal into a Methane /Carbon Monoxide fuel. small amounts of unburned
Wood finally pyrolize
with increased Methane ,methanol production, if planned for this can be a + This is just my opinion, lets see what other fellow members say ! For the Craft ! BIG AL