Dave, here's my other smoker. It's an older New Braunfels, with a lot heavier gauge steel than the newer ones. I converted it from woodburning to propane. I used the burner from a turkey fryer, and added lava rocks on a grate above the burner as ballast. I also added a baffle plate to get even out the temperature in the cooking chamber. It holds a nice steady temp now...unlike how it was when I was just burning wood. I still get plenty of smoke by placing a small pan of wood chips or chunks next to the burner.