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  1. WOW, thanks for ALL of the wonderful input!!! I will try to answer your questions... It is a gas kiln, which is updraft. It's about 40 years old and a workhorse. It has a Chromalox on it, but it doesn't shut off unless I shut it off...so I have to kiln sit! When I turn it on, both burners go on; I can't operate them independently. It has dampers, which I keep open approximately 3 inches. I do oxidation firings only so far. Once I get the hang of firings I may dabble in reduction! I've tried it with a slow ramp and without. I seem to reach ^6 around 5 pm (starting at 7) no matter what I do. I had some minor warping of pieces so I thought a slower ramp up would prevent that, but it still happens. I'm very lucky that the glazes I'm using have done well in the firings (Mastering Cone 6 Glazes and some other random ones). And when I say "stuck" I mean it; they built the kiln room around the two gas kilns we have! Those puppies are there for good! thanks again! Robyn
  2. Hi there! I'm new to the forum...I kind of nosed around and didn't see anything that could answer my question. Everyone seems so knowledgeable and friendly, so I'm diving right in. I have been put in charge of a school's ceramics program with an old tried-and-true Amaco gas kiln (9 cubic feet) for glaze firing. The previous teacher didn't leave any info or logs behind, so I've had to ask around to see what is best for glaze firing in gas kilns (but everyone seems to have electric kilns at schools these days!). I've been doing fairly well with glaze firings but it's been taking from 7 am to 5 pm to reach ^6 temp, and I'm stuck there after school waiting and waiting...is this a normal time frame for a glaze firing? How long should these glaze firings take? Can anyone out there give me a ballpark estimate as to what the temperature ramp over the length of the firing should be? I would appreciate it! Thanks!

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