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  #71  
Old 11-30-2012, 08:18 AM
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Default Re: Super Excited to start new project

Right. So resp masks should be worn, but will it be safe to cook in? Put food right ontop of?
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  #72  
Old 11-30-2012, 11:17 AM
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Default Re: Super Excited to start new project

I think almost every single WFO build that uses fire brick has silica in it. Like I mention it is not an issue unless it become airborne and friable. Take it for what is worth. I am still placing my pizzas right on the bricks. A dust mask should suffice NIOSH 95 is standard and inexpensive for your build. I used when grinding with an angle grinder.
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  #73  
Old 11-30-2012, 11:57 AM
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Default Re: Super Excited to start new project

Ok i spoke to a rep for these bricks, he said these are way over kill for a pizza oven, they are very dense, thy will heat up quicker but wont stay warm as longer as it is 80% silicia?? Did i understand that correctly? He wouldnt tell me that they are safe as they are not FDA approved but said others have used our products for pizza ovens. Sounds like these are super duty bricks? I may pick these up. What does everyone think?

Last edited by V-wiz; 11-30-2012 at 02:41 PM.
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  #74  
Old 11-30-2012, 06:22 PM
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Default Re: Super Excited to start new project

Well ive been reading around and i have not seen one single appliacation where one has used a 80% alumina brick. wow.
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  #75  
Old 11-30-2012, 10:59 PM
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Default Re: Super Excited to start new project

I have one from the old Austin White Lime kilns as my monitor stand. They are continuous use refractory, and dense as hell.
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  #76  
Old 12-01-2012, 01:41 PM
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Default Re: Super Excited to start new project

my super duty high alumina bricks were surplus from a steel mill.
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  #77  
Old 12-01-2012, 02:19 PM
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Default Re: Super Excited to start new project

Sounds like these are bricks you'd use in a foundry or smelter. I am guessing that what you save on those bricks you will spend on diamond blades.

As for the advice of the seller - I would think it just the opposite. The bricks should take longer to heat up but hold the heat better. AFAIK, it is the alumina that holds the heat, not the silica. So more alumina = better heat retention, but more mass to heat up.

If it were my oven, I might want them for the floor - but I think I'd want lower-duty bricks in the dome.
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  #78  
Old 12-01-2012, 02:24 PM
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Default Re: Super Excited to start new project

If you got them, use them!
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  #79  
Old 12-01-2012, 08:12 PM
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Default Re: Super Excited to start new project

I have not gotten them yet. Im pretty sure i can get them for $200-225 at most for 325 bricks. Would that be worth it?. So you say it would take alot more wood to bring it up to temp?
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  #80  
Old 12-01-2012, 08:55 PM
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Default Re: Super Excited to start new project

I would get them, and build my oven and make sure that it was well insulated.
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