Old 03-06-2013, 02:27 PM
Join Date: Jan 2013
Location: virginia
Posts: 111
Default Insblock 19 thickness question

After much searching, I have decided on ANH refractories Insblock 19 and they stock in 1, 1.5 and 2" thickness with 1x3'. All the other ceramic boards would need to be shipped and the cost was 3 times what the Insblock is coming in at $112 that I can pick it up locally.

Now the question, should I use the 1" and stagger the two layers of boards or just use the 2" boards and let the seams meet wherever.

Also, if they have the 1.5" boards in stock (I only asked about the 1 and 2" being in stock), should I use two layers that would give me 3" of total insulation. Will that make much of a difference?

Thanks for you help.
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Old 03-06-2013, 03:33 PM
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Les Les is offline
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Join Date: Sep 2005
Location: Carson City, NV
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Default Re: Insblock 19 thickness question

I used that product and was able to get it in 4 inch thick pieces. Let the seems meet, I don't think you will lose any efficiency. Here is how I laid it out.

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Old 03-06-2013, 04:57 PM
okn okn is offline
Join Date: May 2011
Location: Camarillo, CA
Posts: 123
Default Re: Insblock 19 thickness question

That INSBLOCK 19 is some pretty cool stuff. Itís very rigid and flat. I bought the 3" thick stuff, only because that's what Bill used in his oven and it stays hot for days. I'm right in the middle of my build, but think I would have been better off buying the 1" stuff for my particular build and just layered it up to 3" thickness. If you have the thinner stuff itís easy to make thick, but if you have the thicker stuff itís a bit harder to make it thin. Not too much price difference between the thicknesses either. The thicker stuff might be a tad cheaper; I paid ~$100 a box for the 3Ē. My 2 cents is go with whatever is cheaper to get the thickness you are designing to.


PS: I was able to negotiate approx. 20% down from the original quote from the ANH salesperson. Doesn't hurt to ask.
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Old 03-07-2013, 05:00 AM
Join Date: Jan 2013
Location: virginia
Posts: 111
Default Re: Insblock 19 thickness question

thanks for the tips, I plan on ordering today.

If I were to use a thermal break on the landing, does this go down into the insulation and how large a gap would you use? Is the gap at the entrance to the landing, or the entrance to the oven?
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