I direct fire with the mineral wool and have not had any problems. I'm thinking about putting it on the boil kettle too.
The mineral wool is just glued to the jacket and the jacket is held in place by the two clamps seen on the front. I pull it off after I'm done brewing so I can clean the pot and not have to worry about getting the insulation wet. It also allows the insulation to dry if I spilt anything on while brewing.
That's a great system. 2 more questions, if you don't mind:
1. What kind of high temp glue would you recommend?
2. How did you attach the clamps? I'm guessing that you used bolts and nuts before gluing on the wool - but maybe grommets?
Best,
Steve
I want to try this on my blichmann MT how does this look maybe folded for extra thickness??
http://m.harborfreight.com/4-ft-x-6...t-67833.html?utm_referrer=direct/not provided
How would you guys attach the welding blanket to the tun? Maybe a stretchable cord of some kind on the top and bottom? If the blanket had a couple of layers, then the bottom part would probably insulate the cord from the heat of the burner.
I just used regular spray adhesive. The jacket never gets that hot; I can always put my hand on it. The only part of the insulation that gets hot is the stuff on the very bottom that is exposed to the flame when I'm heating strike water with full flame.
The clamps were welded to the jacket.
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