The newest addition to my shop... in Blacksmithing, General Discussion Posted January 6, 2011 Burritos, grilled cheese, hotdogs and burgers, whatever you want. Just remember....BYOB. HAHA!! Yeah i knew from the start that the pipe diameter was not optimal. It is 8" round HVAC galvanized duct. But it is the biggest Home Depot or Lowes carries, and i can't afford 12" diameter stainless pipe. The cap on the pipe is something i made at home. And it actually has 10 inches on expanded metal mesh after the pipe and before the cap. I should be good there. And i still have some extra scrap pieces of the 8" pipe, i will be raising the height more above the hoof line. Thanks for the input. I will update with some photos of it in action very soon.