#1  
Old 08-24-2008, 07:52 PM
Laborer
 
Join Date: May 2008
Location: Howden, Tasmania, Australia
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Default Firebrick 42% alumina content

Hi. I am in based in Ballarat, Victoria, Australia and have found a supplier of fire bricks close to home that quote 42% alumina content. Is this too high for a pizza/wood fired oven? I plan on building a 42" oven.

Firebricks seem very expensive here between $3.50 to $5.00 each. Is there anyone out there who has found a good/cheap supply?

Thanks,
Jason
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  #2  
Old 08-25-2008, 04:19 PM
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Location: Melbourne Australia
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Default Re: Firebrick 42% alumina content

$3/brick for 230x115x75 or $3:50 for arches ex our Mulgrave store Jason.
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Old 08-25-2008, 07:48 PM
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Default Re: Firebrick 42% alumina content

I have 42% in my oven, sourced them from Sydney at $2.70 a brick (new)

they are not the best quality though (chinese), not all of them were 75mm wide... made dry laying the walls & dome "interesting"

Last edited by Mitchamus; 08-26-2008 at 04:32 PM.
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Old 08-25-2008, 09:57 PM
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Default Re: Firebrick 42% alumina content

The big problem with chinese bricks is knowing which plant to buy from or having a broker who is prepared to source quality products for you.
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Old 08-26-2008, 03:17 PM
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Default Re: Firebrick 42% alumina content

Unfortunately, the place in Sydney where I got them were the only convienient place, the last refractory brick place in newcastle shut down in the 80's.
(I live on the central coast, midway between sydney & newcastle)

I would have prefered to get them from Darley in Vic, but the freight would have been prohibitively expensive...
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Old 08-26-2008, 03:33 PM
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Default Re: Firebrick 42% alumina content

I have just uploaded a pic of the vault of my oven in the "enclosure" album
so you can see the bricks I used.

cheers,
mitch.
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  #7  
Old 08-26-2008, 04:13 PM
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Location: Howden, Tasmania, Australia
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Default Re: Firebrick 42% alumina content

Thanks for the help so far guys. John your price sounds pretty good, will the 42% alumina content be able to hold heat long enough to cook roasts etc after I fire the oven for pizza making?
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Old 08-26-2008, 04:25 PM
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Default Re: Firebrick 42% alumina content

definitely.

My oven is not yet insulated, it has the 42% bricks, and 4" of concrete cladding on top of that.

Last time I cooked pizzas in it, (two weeks ago) the oven was left to burn with just coals at about 9:30pm.

At 10 am the next day it was still about 50 plus degrees inside, with no door, no insulation, and had been left for 12 hours...we also had frost that night.

so with the proper insulation and a door, I am hoping that the temp will be 100 plus the next day... good for cooking a batch of scones to have with breakfast

Last edited by Mitchamus; 08-26-2008 at 04:32 PM.
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Old 08-26-2008, 05:16 PM
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Default Re: Firebrick 42% alumina content

Pizzahead you have P.M
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  #10  
Old 08-27-2008, 05:10 PM
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Default Re: Firebrick 42% alumina content

John, what does PM mean? Your bricks at $3 - is this including or excluding GST. Thanks.
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