What fungus did he use ?
We routinely get over three, and often well over four hours burn time from a fomes one.
I don't know, I haven't tried it with oil, but I have half a dozen big fomes sitting and a few of the piptoporus too. I also have about 300ml of birch tar, somewhere.
Tell you what....you try it and let us know how you get on
All I can see is that black soot when I spilled some into hot coals
The oil's a footer to do in reality. It works very well, but it's really only worth the bother if you pack the tin really full of bark. That said, it's sometimes surprising just how much tar you get from it
It's all good stuff
and it's pretty neat to do it too.
cheers,
Toddy