Best Insulation For a Smoker?

Cuebie

Cuebie

Knows what a fatty is.
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I'm toying with the idea of converting an old stainless industrial dishwasher with into a smoker.

What's the best insulation material to use? Rockwool? Ceramic Fiber Blanket? Insulating aggregates? Is there one I don't know about?


Best,

Ian H.
 
I think Rockwool is pretty common.
I ordered 3 ea.- 1" thick 24"x48" Mineral Wool sheets from McMasterCarr for $6.82 each --


 
I am using rockwool: Roxul batting for 4" walls, from Lowes. Regardless of whether you get panels or rolls, its pretty good stuff. I also use perlite in places where the insulation needs to hold weight--I got 4 cuft for $40 at the local marijuana/hydroponics store.
 
http://www.mcmaster.com/#mineral-wool-sheets/=sabror

Very-High-Temperature Mineral Wool Insulation


9328k21p1s.png
With Wire Mesh







  • Temperature Range: 0° to 1200° F
  • Heat Flow Rate (K-Factor) @ 75° F: 0.23
  • Density: 8 lbs./cu. ft.
  • Color: Green
When insulating in high temperatures such as in oven and power generating applications, durable mineral wool provides compression and moisture resistance. Sheets are semi-rigid and can be used outdoors with metal jacketing.
Plain sheets meet ASTM E84 25/50 for flame and smoke.
Wire mesh reinforced sheets withstand extreme shock and vibration. Can be cut with wire-cutting pliers.




Plain


Wire Mesh
on One Side

Wire Mesh on
Both Sides

Thick. Wd. Lg. Each Each Each 1" 24" 48" 9328K41 $7.30 9328K21 $21.31 9328K11 $25.80 1 1/2" 24" 48" 9328K42 10.94 9328K22 23.11 9328K12 27.56 2" 24" 48" 9328K43 12.59 9328K23 24.04 9328K13 27.29
 
I got insulation from a fireplace store. Same stuff that they use in the space shuttle. Ain't cheap.
 
I got insulation from a fireplace store. Same stuff that they use in the space shuttle. Ain't cheap.
Click to expand...

Thanks Captdan. What is it called? Is there a brand name?
 
Ceramic fiber blanket. I use it at work frequently. If you are doing a double wall you will likely never have to replace it.
 
Ceramic fiber blanket. I use it at work frequently.
Click to expand...

GT-Q Awesome! That's what I've been researching, I'm having trouble finding any data on K values below 900 degrees though. Any idea what kind of heat refraction I can expect at standard smoking temps? 200-300 degrees?
 
Cuebie said:
GT-Q Awesome! That's what I've been researching, I'm having trouble finding any data on K values below 900 degrees though. Any idea what kind of heat refraction I can expect at standard smoking temps? 200-300 degrees?
Click to expand...

I think I can find that info at work on Monday. PM me and we can talk technical off the board Monday.
 
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