Old 12-17-2013, 02:47 PM
Join Date: Dec 2013
Location: Decatur GA
Posts: 1
Default cast oven floor

OK. I screwed up. I built my oven on a wing and a prayer and it did great for about 4 years. My "fire clay" sucked, cracked and caved eventually (well, luckily it did not completely cave, but a brick fell out of the roof). It is a hybrid oven with a larger opening but a Pompeii dome (I wanted to make sure I could bake other things, including a Turkey for the last four years). I know now that I will be using HeatStop for my mortar now unless something better has come up. I do not mean to start a new thread on fire mortar. Lets just say, unless there has been a universal agreement that there is something better, then I am using HeatStop 50 for my mortar. My main question comes from something I have wanted to do since I made the oven originally. I was lucky enough to find some firebricks that were 10" square that I used for my base. They are great, but I think it would be great to have a seamless base. I get into trouble now and then with the seams in the brick so can I use some of the commercially available high heat casting material to pour over my base to get a solid, unseamed surface? I know it is going to be a problem if it is too thin, but I do not want to go any thicker than I have to. Now is the time to do it though since I am rebuilding my dome and I have complete access to my floor. I am hoping for some suggestions. Thanks
Reply With Quote
Old 04-03-2014, 03:13 AM
Join Date: Mar 2014
Location: Boston
Posts: 4
Default Re: cast oven floor

i think it might works, some pictures would be nice
Reply With Quote
Old 04-03-2014, 12:40 PM
david s's Avatar
Il Pizzaiolo
Join Date: Mar 2007
Location: Townsville, Nth Queensland,Australia
Posts: 5,159
Default Re: cast oven floor

Any large casting will want to crack somewhere due to uneven heating. That is why commercial cast ovens are in sections. Cracks don't really matter usually, they just look unsightly. If you cast the floor in one piece it will crack over time. If you don't like the look of it you can cast the floor in a few pieces, but then you're back to a similar situation of having a brick floor.Perhaps you could cast it like concrete and make some grooves in the top in the hope that the cracks will follow where the grooves are.A cast floor will be hard enough, but not as hard as a fired fire brick.It also makes it pretty much impossible to replace the floor unlike loose laid firebrick.

Last edited by david s; 04-03-2014 at 12:46 PM.
Reply With Quote
Old 04-03-2014, 04:07 PM
GianniFocaccia's Avatar
Il Pizzaiolo
Join Date: Jun 2009
Location: Disneyland, CA
Posts: 1,633
Default Re: cast oven floor

I went with three 14"-wide slabs of soapstone in order to end up with only two seams. If the soapstone cracks within (like you) three or four years, I will regret not cutting the slabs into 14" squares, thereby creating control joints.

IMHO, the desire to create a seamless cast floor is admirable, but, unfortunately, impractical.
Reply With Quote

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
Oven Curing james Firing Your Oven 341 06-14-2015 03:58 PM
Soapstone Oven Floor Robpriddy Finding Building Materials 34 07-11-2014 03:36 PM
refractory cast wood fired oven vantheman Other Oven Types 6 08-28-2012 02:59 PM
Mediocre Pie weekend/Why were my pies all “dough-y?” Fio Pizza 11 03-25-2010 06:29 AM
Considering build of Pompeii oven jet Pompeii Oven Construction 21 05-10-2008 12:14 AM

All times are GMT -7. The time now is 05:55 AM.

Powered by vBulletin® Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
© 2006/10 Forno Bravo, LLC