OK, finally fired her up today on the patio, with mixed results. Here she is ready to go this morning:
The propane burner worked really well and would quickly heat up as expected. It also probably helped that even at 10:00am when I started it up it was already 90 degrees in the shade on my patio. The propane burner can go from room temp to 200 in about 15 minutes, even set on medium. The problem I kept having is that the flame would go out. I could catch it pretty quick as I was watching the temps rise, then start to fall. It went out twice on a fairly low setting in the first hour or so. Even on low, it would get to 160 in a hurry and keep climbing until the flame went out.
After a few re-lights, I decided to try the electric burner to see how it would go. The smoker was already warmed up, and the electric element had no problem keeping it at 150 degrees (cast iron skillet w/ wood chips covered in aluminum foil not shown here)
At this point, it was getting towards lunchtime and the stomach was telling me to cook something, so after trying the electric element for awhile I went back to the propane and added a rack of pork ribs. Might as well cook something if you're gonna sit there and watch the thing all day, right?
I kicked the propane burner up a little thinking my prior problems with flameout were due to a low flame. Even at the higher flame, the temps went to about 220, then dropped. This time I re-lit the burner and left the door shut, but not as tightly to see if the problem was not enough air. This time the flame didn't go out, and settled in nicely at around 220-230 degrees. Ribs are still going as I am typing.
This leads me to think the burner is going out because of a lack of oxygen. Anyone have thoughts on that? I'm starting to lean towards the PID Controller and the electric element at this point. It seems like the propane burner is going to have a hard time keeping below 170 degrees which is what I want for smoking sausages. Since I already have the electic burner, I may wire the PID controller straight to its element to see how that works. Before I do that, I'm going to start with a cold smoker (or at least a 90 to 100 degree smoker) and see how the electric element performs. I would like to be able to hold around 130 or so, then 150, then 165 for smoking sausuages, and the PID is starting to look like a good choice here.
So, I guess the maiden voyage was only partly successful, but either way we'll be eating ribs for dinner!