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Or preferably use some hard bricks instead of the IFB's.
You'd have to know someone with a huge diamond saw to cut the castings down I'd imagine. Sounds interesting as far as getting elements lower and more room for them around outside of pot, but wouldn't you be sacrificing space for your soft insulation between the casting and the steel exterior? Unless you expand the steel shell as well I suppose.
Have folks had problems with breaking the crowns on moly furnaces while doing a pot change? If it sounds like the elements and passage bricks need to be removed even if the furnace design is a front-pot access, is it that much more problematic to remove the crown too and stick with the more straightforward top-pot change design which should allow for maximum structural integrity of the furnace?
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