#1  
Old 09-30-2008, 05:31 PM
Laborer
 
Join Date: May 2008
Location: Howden, Tasmania, Australia
Posts: 62
Default Casting a vent?

I am thinking of casting my vent for my 42" oven. The instructions say to cast it using a form etc. They do not say if it needs to be a special type of refractory concrete or just regular concrete.

Will regular concrete handle the heat in the vent/chimney?

Cheers
Jase
Reply With Quote
  #2  
Old 09-30-2008, 07:07 PM
dmun's Avatar
Moderator
 
Join Date: Jul 2005
Location: New Jersey USA
Posts: 4,216
Default Re: Casting a vent?

No: The vent area, particularly down near the oven, gets very hot. You need to cast it out of refractory, or build the transition up with firebrick.
__________________
My geodesic oven project:
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 09-30-2008, 09:02 PM
Il Pizzaiolo
 
Join Date: Jan 2007
Location: Tampa, FL
Posts: 1,446
Default Re: Casting a vent?

to add to dmun's comments - be sure to use a castable refractory, not Refmix, Heatstop, or the fireclay home brew mortars. I think various manufacturers also offer insulating castable refractory as well.
Sorry for the lack of specifics, it has been 1 1/2 yrs since I actually researched this myself (opting to stick will brick, a Duravent transition plate and Duravent pipe for a chimney)

RT
Reply With Quote
  #4  
Old 10-01-2008, 03:21 AM
nissanneill's Avatar
Il Pizzaiolo
 
Join Date: Apr 2007
Location: Adelaide, South Australia
Posts: 1,873
Thumbs up Re: Casting a vent?

A quick and easy solution to this problem is to cut your transition out of stainless steel and tack it together as I have just done for Hendo's oven (pic)
I will arrange to fit it with the lights on Saturday with a few small dyna bolts located in the centre of the firebrick archways.
It also makes the fitment and aiming of the oven illumination a breeeeze.

Neill
Attached Thumbnails
Casting a vent?-hendos-hood_lights-web.jpg  
__________________
Prevention is better than cure, - do it right the first time!

The more I learn, the more I realise how little I know


Neillís Pompeiii #1

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

Neillís kitchen underway

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
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
Casting a cement vent Masako Morishita Pompeii Oven Construction 8 08-31-2008 09:26 AM
vent size for a 36" internal tuscan? waynebergman Pompeii Oven Construction 4 12-07-2007 12:29 PM
casting a vent to anchor plate transition waynebergman Pompeii Oven Construction 7 10-12-2007 11:13 AM
Vent Casting swripley Newbie Forum 3 07-02-2007 05:55 PM
Casting vent wlively Pompeii Oven Construction 29 03-30-2007 07:17 PM


All times are GMT -7. The time now is 05:58 AM.

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