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Growin' Granny

Member Since 31 Mar 2010
Offline Last Active Jan 21 2016 06:57 PM

Topics I've Started

Underfire, what next?

06 June 2012 - 12:44 AM

I have a new (to me) kiln and today I did my first glaze fire in it and it seems to have shut off quite early compared to other electric kilns I've used. The kiln is an Evenheat, over 10 years old but never fired when I bought it, and I've fired one bisque in it with no problems. I used the automatic setting to fire to ^6. I started the kiln at 1:00pm and checked it intermittently, logging the following times/temps: 2:30 / 728, 4:00 / 1360, 5:30 / 1774, 6:30 / 1900. I then got busy and didn't check it again until 8:00 when I found it off and cooled down to 1400. Although it was packed pretty loosely, it doesn't seem likely to me that it could have reached ^6 and cooled off that much between 6:30 and 8:00. I do have witness cones in it (which I wasn't able to see), so if they show that it didn't reach temperature, would I refire to ^6 as if I were firing the ware for the first time? I'd appreciate any comments or suggestions. Thanks, Sheila