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  #11  
Old 09-05-2012, 01:44 AM
Serf
 
Join Date: Mar 2012
Location: Praha, Czech Republic
Posts: 19
Default Re: Retrofitting under floor insulation - insulation thickness and door/dome ratio

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Originally Posted by david s View Post
Yes you could do both those things. Personally I think 60mm is plenty for the floor. 50/50 sand, fire clay is the usual mix for leveling the floor bricks.
Thanks again for the feedback. The 50cm SuperIsol boards are cut, trimmed, and installed. The builders took the 4 floor pieces to trim the flat edges of each floor piece by 0.5-1cm, so that there will be 1-1.5cm of expansion room between the floor and the walls of the dome. Then the floor pieces will be put back in and the curing will continue. I am attaching two pictures. Thanks again for the advice here. Incredibly helpful.

The metal parts of the roof will be painted terracotta color and the oven structure will be covered with stone.
Attached Thumbnails
Retrofitting under floor insulation - insulation thickness and door/dome ratio-oven_floor.jpg   Retrofitting under floor insulation - insulation thickness and door/dome ratio-oven1.jpg   Retrofitting under floor insulation - insulation thickness and door/dome ratio-oven2.jpg  
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  #12  
Old 09-05-2012, 04:20 AM
david s's Avatar
Il Pizzaiolo
 
Join Date: Mar 2007
Location: Townsville, Nth Queensland,Australia
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Default Re: Retrofitting under floor insulation - insulation thickness and door/dome ratio

Looking good. Suggest you bake bread and roast for several firings before taking it to pizza temperature.
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  #13  
Old 09-05-2012, 05:48 AM
Serf
 
Join Date: Mar 2012
Location: Praha, Czech Republic
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Default Re: Retrofitting under floor insulation - insulation thickness and door/dome ratio

Thanks, David. Yes, will be taking it verrrry slowly up to cooking temps. Still have a long way to go on that front.
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  #14  
Old 09-10-2012, 03:50 PM
Serf
 
Join Date: Mar 2012
Location: Praha, Czech Republic
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Default Re: Retrofitting under floor insulation - insulation thickness and door/dome ratio

Quick question. Insulation boards are in place and trimmed floor pieces are installed now too. I was hoping that we could do the alignment such that the seams of the floor pieces would not meet up with the seam of the Super-Isol semicircles. It didn't work out that way, unfortunately. Would you be concerned about the heat loss from the seams nearly lining up? Thanks.

Did my second curing fire today. Woo hoo!
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Retrofitting under floor insulation - insulation thickness and door/dome ratio-p1100773-1.jpg   Retrofitting under floor insulation - insulation thickness and door/dome ratio-p1100777-1.jpg  
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  #15  
Old 09-10-2012, 04:19 PM
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Join Date: Jul 2009
Location: philippines
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Default Re: Retrofitting under floor insulation - insulation thickness and door/dome ratio

those joints will fill with ash and a very small surface area, little or no effect.
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insolation, retrofit insulation, super isol, superisol, under-hearth insulation

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