Originally Posted by HankB
Did you have water in the bowl? If so then cooking much above 225 is likely to use more fuel because you're going to be boiling water. When I'm going for anything over 225, I just foil the pan. I've only done one cook on my 22 so far. I used KB and it looks like I didn't fill the charcoal ring.
I ran with a foiled water pan and two bottom vents open. The cook lasted about 5 hours and IIRC temps were starting to drop near the end. I measured a bit over 300 at the grates but the lid peaked at 285.
I just used a foiled pizza pan on top of the water pan.