Ok. It can be hard to distinguish smoke from water vapor, but smoke it is.
There are folks here with two dampers - though I'm not sure that was for a BK. But 32' straight up may need this. Be aware that if this is indeed the problem, it will get worse as winter weather gets colder.
There are folks here with two dampers - though I'm not sure that was for a BK. But 32' straight up may need this. Be aware that if this is indeed the problem, it will get worse as winter weather gets colder.