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Old 03-04-2013, 10:39 AM
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Default What do you have for Insulation

I'm just wondering what everone here did for insulation under their oven floor? How many incheds of insulation board, firebrick island like the FB plans, refractory concrete etc... Also would you have done more for insulation looking back on your project.

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Old 03-04-2013, 10:55 AM
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Default Re: What do you have for Insulation

4" of 8-1 perlcrete, don't need anymore or any less.
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Old 03-04-2013, 11:42 AM
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Default Re: What do you have for Insulation

I will have 4" of Cal-Sil, might even have enough to put 6" of it.
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Old 03-04-2013, 11:50 AM
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Default Re: What do you have for Insulation

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Originally Posted by V-wiz View Post
I will have 4" of Cal-Sil, might even have enough to put 6" of it.
Is this basically the insulation board Forno Bravo sells and indicates using 2" of? Would Fiberglass Insulation Board work?
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Old 03-04-2013, 11:54 AM
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Default Re: What do you have for Insulation

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Originally Posted by K79 View Post
Is this basically the insulation board Forno Bravo sells and indicates using 2" of? Would Fiberglass Insulation Board work?
I think FB sells Ceramic fiber, so no its not the same. I cant comment of the fiberglass, im not sure. sorry.
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Old 03-04-2013, 05:29 PM
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Default Re: What do you have for Insulation

Don't experiment, get creative or try to go cheap on your floor insulation. It's absolutely the MOST important element of your oven. Use FB Board, CalSil or vermiculite/portland cement. Follow the instructions in the plans.
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Old 03-04-2013, 08:00 PM
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Default Re: What do you have for Insulation

Under hearth. 100mm Hebel Blocks ( aerated cement blocks)
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Old 03-05-2013, 08:41 AM
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Default Re: What do you have for Insulation

I'm trying to get the exact name so I can look it up online and share it. It's from a place that sells this sort of stuff and works with firebrick all the time. Definitely not cheap. Going to cost me about $300 for my oven. I'll post when I get the name of it.
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Old 03-05-2013, 08:49 AM
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Default Re: What do you have for Insulation

I got my insulation from these guys. Pacific Insulation - Industrial Products - Pipe Insulation, Air Handling/HVAC, Industrial Insulation, Commercial Insulation, Insulation Fabrication. Each board cost $10. So you may save money if you order from them and have them ship it over. Or you can find someone local to you that has Calcium Silicate boards like these. I got 13 boards, which cost me like $140 and some change.
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Old 03-05-2013, 08:51 AM
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Default Re: What do you have for Insulation

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Originally Posted by V-wiz View Post
I got my insulation from these guys. Pacific Insulation - Industrial Products - Pipe Insulation, Air Handling/HVAC, Industrial Insulation, Commercial Insulation, Insulation Fabrication. Each board cost $10. So you may save money if you order from them and have them ship it over. Or you can find someone local to you that has Calcium Silicate boards like these. I got 13 boards, which cost me like $140 and some change.
Since the oven floor rests directly on the insulation what heat rating should the board be though? How hot does the average WFO get on the floor?
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