Welcome Gary. The gasifier in the link is built from a 40 gallon hot water heater. It is not a simple fire, which is what you want, but it could have been much easier so ignore everything in the first 10 posts. What you want to see is the clean out hatch around post 17, I think. You will want a fairly large hatch like this and install your nozzle through it. You will need to clean all the charcoal out of it occasionally to service the nozzle and the hatch is good for that. Other than that, this is an updraft charcoal gasifier and works well. The cyclone was unnecessary. I get very little ash or dust into the filter. Also the filter sucked so I have made several different, better ones since. For your purposes look at Matt Ryans latest videos on his Thrive on wood thread. Good luck and don’t get discouraged by a few hiccups. We all get them. All most all of them are due to air leaks.
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