I have been using an Evenheat 1413 curcible kiln for over a year melting glass in a 38# EC crucible. it works great, and runs off of 15 Amps at 220/240 volt. I also have the GT22, which is a front loading annealer from Evenheat. Both kilns are equipped with Rampmaster II digital controlers.
For more information, follow the link to their web site.
http://www.evenheat-kiln.com/