I think if I were to set the height of the drum correctly and opened a bung on the end for venting I could probably control a burn pretty well.
But I cut the bung side off the drum so this is something I would have to try with a new drum.
After this evening’s fire there was a little water and soft earth around the washer drum so it was pretty easy to get a complete airless seal.
Last time might have been different.
Add some air control, insulation, and a couple more wash machine drums to use as baskets and maybe some sort of tripod to raise the drum cover and move the fuel baskets around and this might be a useful way to make charcoal.
Notice the paint is not even scorched off the drum?
Thats how fast the fire is snuffed out.
I was trying very hard last night to get that basket up to a dull glow but it was just not enough heat,
Inside the drum there was a lot of condensate and tar starting to run
I am going to take a much harder look at the results of the burn.
I suspect I do have some interesting reactions to the burn at different level in the basket the further down I dig.
Some of that green oak was in longer and settle deeper before the cover went on.
Looking at the base of the cover drum you can see smoke coming up.
I wonder if this was flammable ?
Maybe a larger 85 gallon salvage drum with hold drilled in the correct places could be put over the green drum to contain these gases for combustion and heat the contents ?
Drums fitting inside drums…