Go Back   Forno Bravo Forum: The Wood-Fired Oven Community > Pizza Oven Design and Installation > Design Styles, Chimneys and Finish

Like Tree1Likes

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-11-2013, 10:17 AM
okn okn is offline
Apprentice
 
Join Date: May 2011
Location: Camarillo, CA
Posts: 102
Default How hot does your door get?

I made a prototype insulated door. I sandwiched two pieces of delaminated INSBLOCK 19 between two pieces of 1/8 inch metal. When the oven is 675 F on the inside, the outside of the door is at 150 F and the points where the bolts were welded on it is about 10 degrees more (i.e. 160 F). Is this normal, better, or worse than everybody else? Pictures attached are of the door.

Kevin
Attached Thumbnails
How hot does your door get?-img_1269.jpg   How hot does your door get?-img_1270.jpg  
Reply With Quote
  #2  
Old 05-11-2013, 10:48 AM
Les's Avatar
Les Les is offline
Il Pizzaiolo
 
Join Date: Sep 2005
Location: Carson City, NV
Posts: 2,799
Default Re: How hot does your door get?

My handles get pretty warm but I am able to move it with out hot pads, never measured the temp.

More importantly - you NEED to cover the insblock material. That nasty stuff is going to find it's way into your food
deejayoh likes this.
__________________
Check out my pictures here:

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


If at first you don't succeed... Skydiving isn't for you.

Last edited by Les; 05-11-2013 at 11:35 AM.
Reply With Quote
  #3  
Old 05-11-2013, 11:21 AM
deejayoh's Avatar
Il Pizzaiolo
 
Join Date: Jul 2010
Location: Seattle
Posts: 1,209
Default Re: How hot does your door get?

My door temp is about the same as you are seeing. I have metal handles but they are never too hot to grab, same as Les.

I agree with Les' comment on covering the insblock. I welded a band of metal all the way around my door. It was kind of a pain but works well
__________________

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
  #4  
Old 05-11-2013, 11:53 AM
okn okn is offline
Apprentice
 
Join Date: May 2011
Location: Camarillo, CA
Posts: 102
Default Re: How hot does your door get?

I'm all about welding a band around, that's why I called it a prototype. Just want to make sure the performance is what it should be, before I commit to welding the band. The material for the band is ~18 gauge. Too thick/thin? Any comments?
Reply With Quote
  #5  
Old 05-11-2013, 12:00 PM
kbartman's Avatar
Journeyman
 
Join Date: Feb 2013
Location: Florida
Posts: 463
Default Re: How hot does your door get?

Quote:
Originally Posted by okn View Post
I made a prototype insulated door. I sandwiched two pieces of delaminated INSBLOCK 19 between two pieces of 1/8 inch metal. When the oven is 675 F on the inside, the outside of the door is at 150 F and the points where the bolts were welded on it is about 10 degrees more (i.e. 160 F). Is this normal, better, or worse than everybody else? Pictures attached are of the door.

Kevin
I have no experience here, but my thoughts are some type of gasket material such as found on most residential kitchen oven doors. This may help keep hot oven gases from escaping the oven and stop the transfer of any heat to the outside of the door.

I agree will Les and Dee about covering the nasty. I value their expertise and opinions and look forward to their response. I don't think one can weld aluminum to steel but possibly rivet it. I think aluminum would transfer less heat.
__________________
Respectfully,

KB
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
  #6  
Old 05-11-2013, 12:07 PM
deejayoh's Avatar
Il Pizzaiolo
 
Join Date: Jul 2010
Location: Seattle
Posts: 1,209
Default Re: How hot does your door get?

I used 16 gauge steel. 18 gauge I think is a bit thin for the face/back - but maybe ok for the band except that given my welding skills, I'd be blowing holes through it everywhere

I didn't go with a gasket - as getting an exact enough fit for the door into the space is kind of tough. I have about 1/4" all the way around - but it's not totally even. I figure with the overlap of the face on the brick, it's a good enough seal.

IIRC, Aluminum is a much better heat conductor than steel. At the same gauge it will transfer more heat. Only material that could be worse is copper.
__________________

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.

Last edited by deejayoh; 05-11-2013 at 12:10 PM.
Reply With Quote
  #7  
Old 05-11-2013, 01:55 PM
kbartman's Avatar
Journeyman
 
Join Date: Feb 2013
Location: Florida
Posts: 463
Default Re: How hot does your door get?

Quote:
Originally Posted by deejayoh View Post
I used 16 gauge steel. 18 gauge I think is a bit thin for the face/back - but maybe ok for the band except that given my welding skills, I'd be blowing holes through it everywhere

I didn't go with a gasket - as getting an exact enough fit for the door into the space is kind of tough. I have about 1/4" all the way around - but it's not totally even. I figure with the overlap of the face on the brick, it's a good enough seal.

IIRC, Aluminum is a much better heat conductor than steel. At the same gauge it will transfer more heat. Only material that could be worse is copper.
Thanks,
Dee I learned something........I guess that's why aluminum is on the bottom of skillets.

I was figuring the gasket butting up against the reveal of the oven. The lip of the door with gasket fits up against the same reveal. The ¼” you are speaking of, is this clearance around your door on the outer arch? I was assuming your lip was wider………. I was thinking of the band of aluminum and gasket being some type of heat break.

Thanks again Dee I value your experience and opinion.
__________________
Respectfully,

KB
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
  #8  
Old 05-12-2013, 01:31 AM
brickie in oz's Avatar
Il Pizzaiolo
 
Join Date: Mar 2009
Location: Whittlesea
Posts: 3,455
Default Re: How hot does your door get?

The handle on my oven door only just gets warm, Ive never know it to get hot.
__________________
The English language was invented by people who couldnt spell.


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
  #9  
Old 05-12-2013, 07:24 AM
okn okn is offline
Apprentice
 
Join Date: May 2011
Location: Camarillo, CA
Posts: 102
Default Re: How hot does your door get?

Al, what about the actual face (outside) of the door?
Reply With Quote
  #10  
Old 05-12-2013, 11:51 PM
brickie in oz's Avatar
Il Pizzaiolo
 
Join Date: Mar 2009
Location: Whittlesea
Posts: 3,455
Default Re: How hot does your door get?

Off hand I cant remember, its not hot I know that, next time I fire it up I will take a reading.
__________________
The English language was invented by people who couldnt spell.


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
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



All times are GMT -7. The time now is 09:44 AM.

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