#1  
Old 04-22-2009, 11:04 AM
Serf
 
Join Date: Apr 2009
Location: Up State NY
Posts: 8
Question did i use the wrong mix

First, thanks for this forum -

I downloaded the Pompeii instructions several months ago and started construction on a 1200 sqft fieldstone patio with oven last week.

I poured the base last week for the Stone House oven and now realize that I may have used the wrong mix. I didn't use vermiculite - just regular concrete - is this a total screw up?? I plan on using the fireplace a lot - will it be okay to just use the firebricks on top of the reg. concrete??
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  #2  
Old 04-22-2009, 12:43 PM
james's Avatar
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Join Date: Mar 2005
Location: Pebble Beach, CA
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Default Re: did i use the wrong mix

Hi Mini,

Welcome aboard! I moved this to Getting Started. You should get more help here.

The hearth under the wood oven has two layers. A concrete slab, that holds everything up, and on top of that, a layer of either vermiculite or FB Board insulation. The oven floor rests on top of that.

If you follow the plans, I think you should be OK.
James
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Old 04-22-2009, 12:56 PM
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Join Date: Oct 2007
Location: Michigan
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Default Re: did i use the wrong mix

Don't put the firebrick directly on regular concrete. You need some form of insulation, or you will lose all of your heat, resulting in a cold floor.
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Old 04-22-2009, 01:19 PM
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Default Re: did i use the wrong mix

Insulate! Insulate! Insulate!
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Old 04-23-2009, 04:40 AM
Serf
 
Join Date: Apr 2009
Location: Up State NY
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Default Re: did i use the wrong mix

Whew -

Thanks alot...

Mini
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