I had to scrap my old stick burner earlier this year as it was just flat worn out and the repairs were too much
I picked up a Char-Broil Silver on CL for $20.
The side box was never used, in fact the previous owner put the hinge on the door backwards and it would not open.
Fired up .jpg
I fixed the hinge, cleaned it up and decided to add a diffuser plate
Plate drill .jpg
left it solid a few inches at the fire box side and then offset pattern of holes getting progressivly larger
Plate installed .jpg
I really liked the Yoder that Nucornhusker got and how he tested if the heat was even
I took a guess at what I thought would work being conservative on the smaller end so I could enlarge if needed
Plate long view .jpg
Built a fire to season it up
Got the cheapest Walmart biscuits for the test (Thanks for the idea Nucornhusker)
Biscuit on .jpg
At the turn it was cooking more on the exhaust side so I flipped ends
Buscuit done .jpg
The first 75% was real even heat and the last 25% was about 10 degrees hotter. I may leave it this way and try some cooks so I can use the hotter area if needed. I can add holes on the left or enlarge the ones already there if needed.
I thought I would just toss out the test biscuits but I tasted one and they were smokey awesome. I threw on some bacon for a quick snack
took the rest to work and they were gobbled up!
I think this mod will work out just fine! SD