I've used bees wax for years, Gramps taught me that one, and it's great for casting bullets, smells nice too!! As for lighting the smoke on fire,,,,, hope you're doing it out side, it can flare up pretty good, and sure will put a good coating on a inside wall after a bit,,,, you'll never be able to paint over,,,especially with bees wax. Try it for casting guys, as good or better than rosin, safer and not toxic too.
Just be ready for pancakes after, that bees wax smell gets to ya!!