Nice Don. That clean out will serve you well. I also like the looks of the "fire pot" and what little damage, if any it has sustained. The insulation is also a good idea. Like you say, keep the heat where you need it and why use charcoal for insulation. It maybe cheaper, but it isn't as effective as the insulation. Keep up the good work, Your successes are luring others to the "dark side"
Gary in PA