I don't think you need a bead door. I got a programmable Paragon
which I use for multiple tasks--wax burnout, as well as enameling,
and am getting along just fine without the bead door.
Wouldn’t a bead door help to view progress without opening the kiln
door? When I open the door of my kiln to check the enameling
progress the temperature drops hundreds of degrees, and if I’m a
little too early that adds a whole lot of time to the firing and
throws off any sense I might develop about how long things should
I know all the enameling experts say you get to know how long to
fire, but all I can say to that is I’m still waiting for that to
happen. Check too soon, the temperature drops too much. Check too
late, some colors turn to rubbish. Being able to see without dropping
the temperature would be really nice, it seems to me.