Hi, great advice from others. I'll add that chimneys are difficult to master, and your reply below that the raw chamber is only thinly coated will exacerbate the difficulties.
Chimneys were difficult for me, too. Never had one that I didn't toss. Try a medium pot or billiard. Or the aforementioned cob, along with the advice already posted.Tried a couple aromatics in a chimney pipe. Just could not keep it lit. I switched to a different bowl type (upon recommendation of the nice folks here in the forum) and now I'm off to the races! It was a big difference for me.