I just got a propane afterburner for my Brinkman Gourmet. Have some questions....... The needle valve is very-very sensetive. The smallest adjustment up or down makes a large differance in temperarture. To smoke at 225* degrees, the valve is barely open, perhaps this is the reason? How do I determine if something is wrong with the regulator or valve? Can I buy a less sensetive valve at a propane dealer? The instructions don't give recommended temps to use it at. But IMHO, they imply to run the unit hotter than a charcoal smoker. I haven't done that, I'm trying to run it 225-235*. Should I run hotter? I'm using a coffee can with one or two chunks in it for smoking. Sometimes it smokes nice TBS, and sometimes it just doesn't want to smoke. I hate to fill it with chunks, thinking I'm going to get too much smoke. What do you guys do for propane smoke? I lay the can sideways, so that it rests with the open end on the rail away from the flame, and the closed end is on top of the burner, with direct flames on it.