Did not work well, smoke, and odor, I even myself smell at it, and that is not oke.
The max temp I did reach on top of barrel was 123 degree celcius. this means the afterburning do
not work because if it does, it get a hell lot hotter, it did better when I did make the tunnel 3 cm smaller in
the top and bottom and left the sides 15 cm, I did see this somewhere in past and also then a pit for the ashes.
You now I can not smoke out nabures and just that was what I did with it, the barrel is also outdoor
and outside it is 10 degree celcius or so.
I think the fire in the tunnen is way to low in temperature, all other stuff is oke, chimney etc. The
rizer is isolated with a ceramic blanket like more people do.
here the burning.
https://youtu.be/ziO7bOsGo-A