I use a Skutt kiln, KM 1227 to do all the firings for my production decal ware. I like the computerized control system, which allows for easy firings to the wide variety of temperatures I fire to. Most of my production ware is fired 4 times in this kiln.
I also use the Skutt KM 614 test kiln for small batches, special projects, and new ideas. This has proven to be a nice addition to my production studio.