@Buckeye smoker the minimum 2 hours. I didn't fill up the HD. I would say I occupied about half on each side. I didn't want to risk a back burn into the auger. So I tested it at half full. The foil and the holes seem to do the trick.
Thank you I appreciate it. Been debating getting one for a CPL years now. Think I'm gonna go for it after the first of the year.