Originally Posted by Wes W
Here is a clean shot of the chamber as it was being built. There is no ledge in the back. The racks are pushed all the way to the back wall. I have about 1 1/2 in. that I can pull the racks forward.
Edit: The first shelf is between the two doors hidden.
The ledges are 1 1/2 each side. The racks sit on them about half.
If you need a closer picture, let me know.
Love you all's thinking. I'm listening.
The 1 1/2in ledges might be a place to look. Staying with the hypercose idea, here's a very bad sketch. Mind you, this is an absolute "if nothing else works" type of solution as it's not exactly easy.
Red represents the inner walls of your smoker.
Blue represents sheet metal of some size that would need to be fabricated.
Green nubs represent new supports for your 2 lower shelves. Could be metal tabs, or even angle iron the full depth of the shelves.
Black arrows represent where holes would need to be drilled both in your 1 1/2 in brick "shelves", as well as in the upper sides of the fabricated insert, and the top of the insert.
Scale is way off. The chamber formed on top could be pretty small and shouldn't take away much headroom from the 2nd shelf up from the bottom. Two new lower shelves would have to be made as they would need to be a bit narrow.
You might want to flare out the bottom with the previously metioned shrouds to gather more heat.
In short, IF you can drill the holes along the depth of your lower shelves, you could retro fit the bottom to be double walled, sending the heat up through the holes in the shelves and out underneath the 2nd rack from the top.
As noted earlier, it's an extreme solution, and I'd definitely try other things first, but I think it would work.