Hi Steve,
I’ll chime in and agree with Steve and Tom. A charcoal gasifier is the easiest way to get started in my opinion too. I used @k_vanlooken’s ideas from Some school in Thailand.
I learned to make good charcoal in a TLUD (Top Lit Up Draft) when my neighbor said I could cut all the dead branches off his apple tree. I wanted it to use for grilling.
Making charcoal for the bbq.
My big TLUD makes about 30 gallons of charcoal at a time.
Charcoal from the big TLUD is fuel for my 3KW 1960s generator.
I also use charcoal in a make-shift forge. I really like the capability it gives me.



