#1  
Old 02-04-2011, 08:36 AM
Serf
 
Join Date: Feb 2011
Location: Texas
Posts: 6
Default Instead of firebricks?

Firebricks are expensive, so I wonder about alternatives. I can get "extreme-temperature cement" and use it to cover an oven floor of regular bricks for a slim fraction of the cost of firebricks. Is this any good?

I've also found a "refractory sealing compound" that's made to "renew the high-temperature resistance and performance of worn firebrick." So, if I've got 3-6 inches of sand, then regular bricks, then the extreme-temperature cement, then the refractory sealing compound, would that not be a suitable oven floor?

Basically, what's the cheap and effective way around spending $250 on firebricks?

Thanks!
Reply With Quote
  #2  
Old 02-04-2011, 09:06 AM
Tscarborough's Avatar
Il Pizzaiolo
 
Join Date: Oct 2009
Location: Ausitn
Posts: 3,075
Default Re: Instead of firebricks?

Old Common brick. Austin commons , Thurber commons, Ferris brick, Corsicana Cherry Reds, and D'hanis commons will all work, but may cost almost as much as firebrick.

I don't know that I would recommend a castable for the hearth, and they are not cheap anyway.
Reply With Quote
  #3  
Old 02-04-2011, 09:22 AM
Journeyman
 
Join Date: Aug 2010
Location: MN, USA
Posts: 346
Default Re: Instead of firebricks?

The one thing those bricks that TS mentioned, they are clay bricks (I assume), not concrete. You can get away with a different type of brick, but it won't last as long... with that said, it's probably still a good way to go. When I take my temp one apart, I'm just going to use those. I found mine on Craigslist... $50 for 600!
__________________
My oven (for now):

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote
  #4  
Old 02-04-2011, 09:36 AM
Tscarborough's Avatar
Il Pizzaiolo
 
Join Date: Oct 2009
Location: Ausitn
Posts: 3,075
Default Re: Instead of firebricks?

Yes they are all dry pressed clay brick. They are all also low fired (except for the Thurbers), and were produced using almost the same clay bodies as firebrick.
Reply With Quote
  #5  
Old 02-04-2011, 09:41 AM
Serf
 
Join Date: Feb 2011
Location: Texas
Posts: 6
Default Re: Instead of firebricks?

Thank you for the advice on useable bricks. Since I'm designing a cob oven, I have wondered about simply building the oven floor out of a thick layer of cob. I will use powdered Hawthorne fire clay as the clay component to my cob, by the way.

Off-topic: What's the consensus on the clay/sand ratio?
Reply With Quote
  #6  
Old 02-04-2011, 10:07 AM
Lburou's Avatar
Il Pizzaiolo
 
Join Date: Dec 2010
Location: DFW area, USA
Posts: 1,116
Default Re: Instead of firebricks?

Quote:
Originally Posted by tx-shane View Post
Thank you for the advice on useable bricks. Since I'm designing a cob oven, I have wondered about simply building the oven floor out of a thick layer of cob. I will use powdered Hawthorne fire clay as the clay component to my cob, by the way.

Off-topic: What's the consensus on the clay/sand ratio?
I'm going to have a few bricks leftover....Where are you?
__________________
Lee B.
DFW area, Texas, USA

If you are thinking about building a brick oven, my advice is
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Our One Meter Pompeii Oven album is
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

An album showing our Thermal Breaks is
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


I try to learn from my mistakes, and from yours when you give me a heads up.
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote
  #7  
Old 02-04-2011, 10:20 AM
Serf
 
Join Date: Feb 2011
Location: Texas
Posts: 6
Default Re: Instead of firebricks?

Lburou- I live in Temple, so not real close. My in-laws are in the Ft. Worth area, though, so it's possible I'd be visiting up there before long. Your oven sounds pretty cool. I'm going to try a sort of double chamber cob design with a chimney, maybe fashioned after a snail or something goofy. I'm determined to have fun with the process.
Reply With Quote
  #8  
Old 02-04-2011, 10:30 AM
Tscarborough's Avatar
Il Pizzaiolo
 
Join Date: Oct 2009
Location: Ausitn
Posts: 3,075
Default Re: Instead of firebricks?

Drive to Elgin, you can get #2 firebrick for less than a buck (I think is is .45 Cents) at the Elgin-butler plant.
Reply With Quote
  #9  
Old 02-04-2011, 10:34 AM
Lburou's Avatar
Il Pizzaiolo
 
Join Date: Dec 2010
Location: DFW area, USA
Posts: 1,116
Default Re: Instead of firebricks?

Quote:
Originally Posted by tx-shane View Post
Lburou- I live in Temple, so not real close. My in-laws are in the Ft. Worth area, though, so it's possible I'd be visiting up there before long. Your oven sounds pretty cool. I'm going to try a sort of double chamber cob design with a chimney, maybe fashioned after a snail or something goofy. I'm determined to have fun with the process.
You have a PM with contact info and Tscarborough has some good advice aabove
__________________
Lee B.
DFW area, Texas, USA

If you are thinking about building a brick oven, my advice is
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Our One Meter Pompeii Oven album is
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

An album showing our Thermal Breaks is
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


I try to learn from my mistakes, and from yours when you give me a heads up.
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote
  #10  
Old 02-04-2011, 10:45 AM
Il Pizzaiolo
 
Join Date: Jan 2007
Location: Tampa, FL
Posts: 1,446
Default Re: Instead of firebricks?

I'm with Ts on this, I have to believe any bricks + extreme temp. cement + refractory sealing compound will cost nearly as much as the firebricks. If you are doing a cob oven, wouldn't you only need enough firebricks for the hearth? That shouldn't cost anywhere near $250 unless you live in Australia, where firebrick is worth more than gold.

My cost on 215 firebrick was $165.55 for the whole oven. The cost has since gone up but the same supplier is still only $.97 per brick. I would make a few calls to brickyards kiln/refractory suppliers, I'm sure you can find light or medium duty bricks for a $1.50 or less each. Trying to use that high temp cement and a refractory sealer is untested territory for everyone here, so I think you are totally on your own if you choose that route. Good Luck, whichever route you take

RT
Reply With Quote
Reply

Tags
cement, extreme-temperature, firebricks, oven floor

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help! Asbestos firebricks? Remember Wingmen? Newbie Forum 4 12-06-2010 09:19 PM
Why not insulating firebricks for hearth insulation? kebwi Tools, Tips and Techniques 20 12-12-2009 04:52 PM
UK Supplier of Firebricks and other items PeterW Getting Started 13 03-29-2008 09:01 AM
Are these firebricks the right weight? Nick Pompeii Oven Construction 2 09-27-2007 09:40 AM
How they make insulating firebricks james Getting Started 4 10-09-2006 09:51 AM


All times are GMT -7. The time now is 02:57 PM.

Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
2006/10 Forno Bravo, LLC