Old 08-23-2007, 08:13 AM
Wlodek's Avatar
Join Date: Jul 2007
Location: England's Lake District
Posts: 134
Default To cast or not to cast?

Right, a brief report is in order.

I have been acquiring increasing amounts of bricks and collating a list of UK refractories suppliers (more than I thought).

Still thinking about casting the top part of the dome. Thoughts (lose!):
  • thickness of the cast - the material will be similar to the firebricks used in the bottom rows of the dome, so do I need the same thickness? This would make the cast half a brick thick, which seems a lot. But if I don't I won't have the same thermal mass as the original
  • cracking - will it be liable to cracking due to thermal cycling?
  • how think are the Forno Bravo cast ovens? In the photos they look 2-3", which is far less than half a brick
  • and also - the top part of the dome would be probably approx. 50cm (20") in diameter - is this not too big as a single cast?
  • or should it be cast thinner and additionally rendered from the outside? Would that change anything?
  • or am I talking rubbish and I should just follow the plans ... ?

Any advice, experience or suggestions, pretty please?

Best wishes,
Reply With Quote
Old 08-23-2007, 01:00 PM
wlively's Avatar
Join Date: May 2005
Location: Spring Branch, TX 78070
Posts: 384
Default Re: To cast or not to cast?

Probably best to read this
http://www.fornobravo.com/forum/f28/...rill-2207.html (Casting Refractory - This is NOT a drill!)

and then ask ENZ since he is the only one I have seen do it. Now, I did cast my vent transition and a dome plug (approx 15" in dia and 3" thick). The material I used (KS-4) has held up great and am not worried about cracking at all, but it required a specific heat cure schedule. So you could not use it unless you cast pieces small enough to fit in an oven or had a friend with a very large oven/kiln.
Wade Lively
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
Cast your own CAM Getting Started 30 01-15-2008 07:21 PM
cast lintel question...... Frenchcanuck Pompeii Oven Construction 1 07-28-2007 06:54 PM
Lodge Cast Iron james Get Cooking 9 05-13-2007 01:46 AM
Cast iron doors Ted Rosenberg Pompeii Oven Construction 10 10-10-2006 02:23 AM
Cast Iron Standing Grill james Get Cooking 4 02-01-2006 08:29 AM

All times are GMT -7. The time now is 05:19 AM.

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