#1  
Old 07-17-2010, 04:24 PM
Peasant
 
Join Date: May 2008
Location: Salt Spring Island, BC, Canada
Posts: 32
Default ceramic insulation "bricks"? "Skagits"

Hi,

I have finally found a local supply, (near Vancouver), of calcium-magnesium cilicate (CMS), insulation, but it comes in full brick dimensions, not a board.

Any thoughts or experience on performance and handling I should be aware of?

I have also found some 12"x24" "skagits", that are 2" firebrick tiles for the hearth,... very cool.

I am now just about to start the 42" build. This will be my 2nd oven. Really looking forward to this and will post pics soon. Thanks to all on this forum for helping with far too many design and building ideas.
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  #2  
Old 07-17-2010, 04:46 PM
GianniFocaccia's Avatar
Il Pizzaiolo
 
Join Date: Jun 2009
Location: Disneyland, CA
Posts: 1,491
Default Re: ceramic insulation "bricks"? "Skagits"

The topic of insulating bricks was recently covered here:

http://www.fornobravo.com/forum/f28/...tion-8009.html (Why not insulating firebricks for hearth insulation?)

I think the reason most builders go with vermicrete or board (or a combination of both) over insulating brick is the cost.
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Old 07-17-2010, 06:14 PM
Grimaldi's Avatar
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Join Date: Dec 2008
Location: Texas
Posts: 106
Default Re: ceramic insulation "bricks"? "Skagits"

I used the Insulating Bricks under my Firebrick floor...they are 3" thick and came out of a furnace. I used them because I found them on craigslist cheap ($1 each 3x7x9). They are an industrial insulating product, and they were easy to work with.
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Old 07-17-2010, 08:40 PM
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Join Date: Jul 2005
Location: New Jersey USA
Posts: 4,216
Default Re: ceramic insulation "bricks"? "Skagits"

Cal-sil bricks? That's a new on on me. Cal-sil board is considerably more expensive than the mineral fiber types, it may pay to shop around.
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Old 07-18-2010, 12:59 PM
Neil2's Avatar
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Join Date: Oct 2006
Location: Vancouver Island
Posts: 1,374
Default Re: ceramic insulation "bricks"? "Skagits"

The cal-sil insulating bricks are widely used by potters in kiln building.
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  #6  
Old 07-19-2010, 01:41 PM
Peasant
 
Join Date: May 2008
Location: Salt Spring Island, BC, Canada
Posts: 32
Default Re: ceramic insulation "bricks"? "Skagits"

Hi,
Thanks for the comments.

The insulating firebricks (IFBs), are cal-sil, the name is Iso-Perlor. Maximum operating temp is 1652F, and crushing strength lb/sq" is 290.

They cost $3.50 CA each. This has been my best option, other than vermicrete. I used vermicrete for my 1st build, and am looking for better performance for this current project.
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