The bigger issue with a pottery vs glass kiln is that pottery kilns typically have “kiln sitters” but don’t have controllers. To properly fused anything in glass larger than about 2″ square, you are going to need (or at least will greatly appreciate) a digital controller.
Pottery is a “throw it in the kiln, bring it to temp, turn it off” kind of process. Glass needs to be ramped at a certain rate, held for periods of time at different points during the firing schedule, and allowed to cool slowly enough to keep the glass from thermal shocking or stress fracturing. This is very difficult to dowithout a digital controller.
Fused Glass Designs
dba Jester’s Baubles