I bought a beat up old kettle for $20 from CL, to use as a donor for this idea I have...
I want to make my 22.5" performer into a "poor man's Summit", buy adding insulation. For the lid, i will add an inner lid, and fill the 1/4" or so between the inner and outer lid with carbon fiber welding blanket. I plan to cut the lid down so it hides nicely inside the outer lid.
For the bowl, I am thinking I can cut an approx 5" high donut from the center part of the bowl. I will RTV my carbon fiber blanket remnant to the outside of the donut, and then drop it in so that it sits on top of the charcoal grate, but below the cooking grate. Again, about a 1/4" gap (at the top) filled with welding blanket.
Here is a sketch of what it would look like:
It probably won't insulate as well as the Summit, but I am thinking that between the mid-bowl and the lid, it should run more efficiently--meaning I should be able to get crazy high temps for pizza, or cook longer low+slow before I have to add charcoal.
What do you guys think? Crazy?