Bought a 9" by 5" loaf pan from Target & cut the bottom out w/my Dremel. Set on charcoal grate tight against one side of kettle. Set a couple pieces of firebrick on the other side of the pan for some heat shielding. Filled pan with briquettes, set top & bottom vents wide open, fired it up & set the lid in place.
In short order she was nice & hot, added a package of 5 Johnsonville brats to the indirect side. Roughly checked the grate temp by sticking my handheld temp probe down through the top vent to the grate, it was over 400 degrees. When brats reached 140 - 150 internal, removed lid, transferred brats to direct side for searing. They turned out great!
Verdict (IMHO): I now have my very own S 'n S! I don't imagine it will last as long & the real one would probably perform slightly better but, for a buck & a half plus tax I don't care.
Next experiment: The sides of the pan taper slightly so I'm going to turn it upside down in the exact center of the grill & see how well it would work as a "rectangular Vortex". I'll report back.
In addition, for the 1st time I lit the charcoal with my "Elcheapo" Harbor Freight heat gun. My new favorite charcoal lighter.
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