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Old 11-14-2009, 10:05 PM
Peasant
 
Join Date: Mar 2009
Location: Colorado
Posts: 25
Default Mineral Wool Insulation

Does anyone have any information on mineral wool and how it compares to the FB ceramic blanket and perlite. I am inclined to go with straight perlite/cement on the dome but I do have some mineral wool that I bought for a masonry heater project that is still laying around. My main area of concern is a section of the dome that is slightly less than 3" away from an adobe wall. I carved out the adobe as far as I dared. Both the adobe wall and the oven are indoors.

Marty
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  #2  
Old 11-15-2009, 04:24 AM
Il Pizzaiolo
 
Join Date: Mar 2009
Location: USA
Posts: 1,436
Default Re: Mineral Wool Insulation

What are the major uses for rock and slag wool insulations?
The physical and chemical properties of mineral wool insulation, also known as rock and slag wool, are major factors in their utility. Because the fibers are non-combustible and have melting temperatures in excess of 1800-2000 F, they are used to prevent the spread of fire. As a primary constituent of ceiling tile and sprayed fire proofing, rock and slag wool products supply fire protection, as well as sound control and attenuation.

The excellent thermal resistance of these wools is a major factor in their use as residential and commercial insulation, pipe and process insulation, insulation for ships, mobile homes, domestic cooking appliances, and a wide variety of other applications
FAQ's About Mineral Wool (Rock and Slag Wool) Insulation Hi Marty and welcome.. I found the above info on the att website.. sounds like pretty good stuff, As far as a comparison, sorry I cant help you there other than saying the FB Products are known reliable items...

Cheers
Mark
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Old 11-15-2009, 09:58 AM
dmun's Avatar
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Join Date: Jul 2005
Location: New Jersey USA
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Default Re: Mineral Wool Insulation

In some places "mineral wool" is a term for what we call domestic fiberglass insulation. These contain organic binders that burn at WFO temps, making a big stink and degrading the insulation.

I suspect, though, that if you bought it for a masonry heater, it's proper refractory insulation blanket and it will be fine. Did you ever build the masonry heater? How's that working out?
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Old 11-16-2009, 07:09 AM
Peasant
 
Join Date: Mar 2009
Location: Colorado
Posts: 25
Default Re: Mineral Wool Insulation

I never built the heater--time and money issues. The space for it glares at me everyday. I bought the mineral wool from Maine Wood Heat Company.

Marty
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