Hi Dave, Well finished temp run today and I have quite a change. Top and bottom settle about 10 degrees delta. With upper firebox vents closed I could get to 180 with my little BBQ Side Burner and it would adjust down plus when I opened the upper firebox vents I dropped about 20 degrees but temp was stable. Mind you I did not have any wood or lump in the pan. I did gain about 5 degrees when I closed the flue vent down by 50 %. I am planning some ribs tomorrow and the Mesquite and lump typically give me plenty of heat but I do think the little propane burner is probably next to go. I was concerned about its capability when I built it. Norther tool has a nice burner that I think i will order.
Firebox gas flames were great even down on low. I coul dget the temp down to 120 and stable which is great for some cold smoking.
I am pleased so far with the changes. When you get a chance take a look at the side channel Smoke exhaust openings in the CC. ANy suggestions??
Bob in AZ