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Old 02-07-2003, 08:03 PM
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Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
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This does presume a three inch thick crown and I do think thicker might be better, by one inch. Mass is important in electric furnaces although it is a tradeoff with strength. The brick does just sit in the well.

My castable will be Morocast 99 % alumina. II was really impressed with the Morocast 95 and Tom suggested I try this stuff too. I will be using 18 inch by eighteen inch by one inch paver tile from Engineered ceramics as well.

This furnace will open from the side with a giant refrigerator door to remove the pots.
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