Building a reverse flow, miniature smoker/grill. This is either a 4 burger, 2 Fatty, 4 thigh, one big steak, or a 1 meatloaf Smoker/Grill, etc, etc. The fire box 1/4 inch steel and is 6" * 6" * 8" and the tank is 3/16" steel--6.75" by 18.5"L. This baby is smaller than small. I have about 4 hours labor so far, Hopefully, I will finish it tomorrow with the exception of paint. Just a fun thing right now, found the tank at the dump and I had scraps of steel hanging around. I hope it cooks--the firebox will take a small coffee can full of coals.