I insulated my WSM with foil backed insulation. It looks like a space ship now but boy it really holds the heat. The challenge now is to keep the temp low enough without choking it off. I runs with just one vent BARELY cracked. Anyway, it ran for 15 hrs. the other day and when I took the butt out I shut the top vent. Next day I checked to see how much charcoal was left and was amazed that there was over 1/3 left. Awesome. I should have put a chunk of apple in though. I didn't because I like the brisket with no additional wood. I am running Royal Oak lump and it seems good as it is. Maybe just a smaller piece of wood. I used the leftover charcoal this morning to smoke some jalapenos it is running great, as usual.
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No. It's fiberglass. I then took the Red Green route and used duct tape to secure it. That will react to some heat but it might surprise you.
I just did the middle and top sections. The middle section has a cut-out for the door. When I say cut-out, it still has a flap of insulation over it.
It is not so pretty that I want to send pictures.
Originally I thought about using that spray foam around it but I couldn't come up with a form and the door would have been even more of a challenge. It might have looked like R2D2 with a serious fungus infection then!
I guess the point was that it works good and that you may want to try it. If not, OK.
It looks a lot like R2D2 from the waist up.
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Why not use sheet metal tape, it's what we use in hvac, and it will withstand a lot more heat than duct tape...
I don't have any but I will look for it when my duct tape gets low