Hi all - I just picked up a large stainless cabinet, plan to smoke fish, turkey, turkey legs, and a number of favorites from Adam Perry Lang's BBQ book. I live in NY state - "upstate" - which means nowhere near the rotten apple. My son got me into this awesome pastime by feeding me some incredible food, what better way to get hooked ? So this cabinet of mine has insulated doors but is not insulated on top/back/sides. I need to find a flat adhesive-backed gasket material to seal the doors, and would like to find an insulating material that can be used inside the box - but I'd rather not have to cover the insulation with another layer of metal on the inside if there is such a material that's safe to use. Cabinet has double doors about 20" wide and 5' tall. Cab is about 5'6" tall, 26" deep, and 40" wide. I plan to smoke in the 130° range for fish and 220-275° range for other meats. Plan to build a firebox on the side, at least that's what I'm thinking right now. I'll likely copy all that text about the build and put it in the correct sub-forum later today, when I'm not half asleep. Thanks in advance for the great forum.