#1  
Old 10-20-2012, 06:56 AM
Peasant
 
Join Date: Apr 2010
Location: Tucson, AZ
Posts: 43
Default could I use these in place of the second floor slab?

Ceramic Kiln Fire Brick K-23 IFB

K-23 straight IFBs (Insulating Fire Brick) 9"x4.5"x2.5"

I have heard a lot of people complain about insufficient insulation in the floor. I see these insulating firebricks for sale locally. Could I pour the normal 3" slab for the floor, then build the next layer out of these firebricks, before laying down the conducting firebricks for the oven? Skip the vermicrete / FB board and just use IFBs for that entire section?

Is this a good deal @ $2/piece?
Reply With Quote
  #2  
Old 10-20-2012, 09:55 AM
deejayoh's Avatar
Il Pizzaiolo
 
Join Date: Jul 2010
Location: Seattle
Posts: 1,208
Default Re: could I use these in place of the second floor slab?

you could use them, although I think you'd want to maybe lay them on edge. Check the ratings, I think IFB is less effective as an insulator than CF board, so you'll want more than 2.5".

$2 each is a good price for IFB, but how many of them does it take to make up the same area as a sheet of CF board? That's the price comparison I'd do. Check the prices of CF board at McGill's Warehouse.
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote
  #3  
Old 10-21-2012, 07:25 AM
Peasant
 
Join Date: Apr 2010
Location: Tucson, AZ
Posts: 43
Default Re: could I use these in place of the second floor slab?

I looked up IFB properties and found thermal conductivity on the order of 0.3 W/mK. Forno Bravo board claims 0.13 W/mK. So yes IFB is slightly less but I think when you get below 1 W/mK it's a great insulator and you're splitting hairs to measure it out to two decimal points. Anyone have a # for 4:1 or 5:1 vermicrete?
Reply With Quote
Reply

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
best way to place straps on a prima70? 1willisrobbins Newbie Forum 8 09-20-2012 03:16 PM
Best place to acquire fire bricks, North of Seattle NWKitsapPizzaBreadOvenGuy Western US 3 08-11-2012 01:54 PM
slate in place now waynebergman Design Styles, Chimneys and Finish 6 01-08-2008 06:06 AM
How close to place your guests (seating) in relation to the oven opening. thebadger Newbie Forum 8 09-17-2007 08:09 AM
Styrofoam in place of plywood Davy Getting Started 7 01-07-2006 02:16 PM


All times are GMT -7. The time now is 12:31 AM.

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