Has anyone ever seen this done successfully?
I have a limited amount of space and I need the drum's fumes to exit straight under the burn tunnel, theres no room for a rear exist. This pretty much makes the burn tunnel 12-16 inches off the ground.
I built one that was embedded in rocks, but drum's that arn't 55 gallon are impossible to find there all made of plastic so I had to forgo the insulated riser to fit a 6 inch pipe into an 8 inch pipe. So technically it doesn't work without a fan, which means I'm a forum embarassment even though with a small inline fan it works just fine.
I dismantled it and I'm trying to work with a 55g drum on top of a 2 ft tall box that houses the
feed n burn tunnel insulated, but I can't come up with a way to get back to my exit that's sealed
enough to work. Nor does the smoke in the drum really make an effort to find the 6 inch pipe at the bottom before finding some other outlet.
I'm starting to think I
should throw the dam barrel and insulated heat riser down a hill and go back to the original self enclosed design.