High Heat Insulation for fireboxes!!!
 

Just wanted to let you all know if you are interested in finding some high heat insulation at a reasonable price, here ya go. http://www.sheffield-pottery.com


SUPERWOOL 607 HT BLANKET: 8 lb. Density : 1" Thick One Square Foot NON-TOXIC!!! (Sq Ft and Whole Cartons)

SQUARE Foot = 12" x 12"

DESCRIPTION
Superwool 607 HT Blanket is made of Superwool 607 HT long fibers. It exhibits outstanding insulating properties at elevated temperatures. Superwool 607 HT Blanket has an excellent thermal stability and retains its original soft fibrous structure up to maximum continuous use temperature.
Blanket contains neither binder nor lubricant and does not emit any fume or smell during the first firing. It is flexible, easy to cut and shape and easy to install.

TYPE
Blanket made from high temperature insulation wool.

CLASSIFICATION TEMPERATURE 1300°C (2372°F) (ENV 1094-3)
The maximum continuous use temperature depends on the application. In case of doubt, refer to your local Thermal Ceramics sales representative for advice.

BENEFITS
• Excellent thermal insulating performances
• Free of binder or lubricant
• Thermal stability
• Low heat storage
• Flexible and resilient
• Immune to thermal shock
• No reaction with alumina based bricks in application
in the range of the typical use temperature
• Exonerated from any carcinogenic classification
under nota Q of directive 97/69 EC European Union

The less expensive stuff comes only in 12"x12"X1" panels at $10.50 a panel but its better than paying for a whole 50' roll for over $200. Especially if you doing a small project.

my source for insulation is the big yellow book (McMasterCarr). They have everything from rock wool to ceramic...fair prices and FAST deliv.