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  #11  
Old 03-10-2012, 01:37 PM
david s's Avatar
Il Pizzaiolo
 
Join Date: Mar 2007
Location: Townsville, Nth Queensland,Australia
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Default Re: Cast Refractory Pizza Oven Build

Yes you can. you can even have the flue placed slightly over the top of the oven door to make it even shallower, but make sure you have a reasonable funnel (wide but shallow) leading to the flue pipe.
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  #12  
Old 03-12-2012, 11:36 AM
Peasant
 
Join Date: Aug 2011
Location: Amman - Jordan
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Default Re: Cast Refractory Pizza Oven Build

Quote:
Originally Posted by david s View Post
Yes you can. you can even have the flue placed slightly over the top of the oven door to make it even shallower, but make sure you have a reasonable funnel (wide but shallow) leading to the flue pipe.
Not really sure if I wanted to put the flue above the oven door, but put it around 1cm away..

Does this seem better to you??

Thanks,

Karim
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  #13  
Old 03-12-2012, 12:15 PM
david s's Avatar
Il Pizzaiolo
 
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Default Re: Cast Refractory Pizza Oven Build

Quote:
Originally Posted by abulsamman View Post
Not really sure if I wanted to put the flue above the oven door, but put it around 1cm away..

Does this seem better to you??

Thanks,

Karim
Yes, you will be glad you have reduced that long tunnel.
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  #14  
Old 03-13-2012, 11:18 AM
Peasant
 
Join Date: Aug 2011
Location: Amman - Jordan
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Default Re: Cast Refractory Pizza Oven Build

Got the the hearth poured today and bought the ceramic board and blanket

I only found a thickness of 4cm for the board and 2.5cm for the blanket hopefully that would be enough for the insulation..
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  #15  
Old 03-15-2012, 08:35 AM
Peasant
 
Join Date: Aug 2011
Location: Amman - Jordan
Posts: 40
Default Re: Cast Refractory Pizza Oven Build

Drew a diagram of the front view of the oven:

cooking floor diameter : 100cm
oven height (highest point): 42cm
oven sides height: 30cm
outer arch width: 60cm
outer arch mid point height (highest point): 31cm
outer arch sides (lowest point): 21cm
inner arch or door lip is 2.5 cm all round
inner arch width is 45cm
inner arch mid point height (highest point) : 26cm
inner arch sides (lowest point): 20cm

comments suggestion appreciated, really don't want to get anything wrong or regret anything..
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  #16  
Old 03-15-2012, 04:19 PM
Journeyman
 
Join Date: May 2009
Location: Detroit
Posts: 398
Default Re: Cast Refractory Pizza Oven Build

Sorry to be a bit late into this topic, but I do have a bit to add. This page has information of the recommended aggregates for use with ciment fondu based on the temperature it will be used at.

Ciment Fondu®

Silica based aggregates(sand) are good for up to 500C(932F), too low for use in a pizza oven for me. The dome in my oven regularly maxes out my 1100F thermometer when at pizza temperatures.

As for dimensions and shape, it looks to me like you are going for a traditional low dome naples style pizza oven. Is that the goal? If it is I would go a bit lower on the dome and a bit smaller on the door, but I can expand on this into more detail if this is what you are after.
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  #17  
Old 03-16-2012, 12:38 AM
david s's Avatar
Il Pizzaiolo
 
Join Date: Mar 2007
Location: Townsville, Nth Queensland,Australia
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Default Re: Cast Refractory Pizza Oven Build

Karim,
Those numbers look pretty good to me. You have obviously been doing your homework. 45 cm in width for the door should give you plenty of room and the door height to dome height ratio is about right. you've also left about the right amount to fit a door in there nicely.

Good luck,
Dave
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  #18  
Old 03-16-2012, 07:57 AM
Peasant
 
Join Date: Aug 2011
Location: Amman - Jordan
Posts: 40
Default Re: Cast Refractory Pizza Oven Build

Thanks allot Dave and Shuboyje for your input..

I'm still looking for the right aggregates to use, and didn't find the polypropylene fibers yet but there is one company that I'm keeping my fingers crossed for that I still need to check out. If they have a ready mixed castable mortar including fibers that's going to be great!

If that doesn't work, I think I will NOT use sand as an aggregate, but rather crushed clay, crushed red bricks, basalt, or granite depending on what i find.

In regards for the oven dimensions, wasn't sure to chose a high or low vault dome, so dimensions are in between, and according to Forno Bravo's manuals and rule of thumb 63%door height to height of dome..
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  #19  
Old 03-16-2012, 08:05 AM
Peasant
 
Join Date: Aug 2011
Location: Amman - Jordan
Posts: 40
Default Re: Cast Refractory Pizza Oven Build

got a brick sample for the cooking floor. According to the guy I got it from these are Chinese made bricks made for furnaces, and it could withstand temperatures of 1200 c if I recall correctly, and cost about USD 2.11 per brick..
Have no idea of the alumina content, but did see other Spanish made brick that are smaller in size.
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Last edited by abulsamman; 03-16-2012 at 08:08 AM.
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  #20  
Old 03-16-2012, 03:46 PM
david s's Avatar
Il Pizzaiolo
 
Join Date: Mar 2007
Location: Townsville, Nth Queensland,Australia
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Default Re: Cast Refractory Pizza Oven Build

Make sure they are dense fire brick. That is they should be heavy. If they are really light then they are insulating fire bricks. You don't want them.
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