I'm reading that a glass kiln with an overhead heating element works better for casting and slumping glass.  I'm hoping to get a kiln that will cover both enameling and casting glass.  Has anyone ever enameled with a clamshell kiln?  Does it work well or does it lose a ton of heat when opening and closing?  Having worked with a Paragon Sc4 with an infinite control for years, I'm hoping to move to a digital controller that will fire both as well.

Thanks,

Karen