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In the Studio (4 posts)
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User is offline Oct 04 2012 09:31 PM
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  1. In Topic: gas firing

    Posted 4 Oct 2012

    I should add that we have been firing this same kiln for over 10 years now and it always fires like a dream! I think the humidity is killing the temp rise; that has been my experience when firing on soupy days. Also the stack is tight but we have fired it much tighter with tons of flat shelves. There are a variety of heights.

  2. In Topic: gas firing

    Posted 4 Oct 2012

    I"m actually posting for friends who are firing our studio kiln and it's been stalled for almost 5 hours. Propane gas, firing went well through reduction but at 7 the bottom stalled and now the 9 is down on top and just soft on bottom. The temp wont' rise; they've tried everything. More gas, open damper, close damper. All leaving it be for at least 20 minutes before doing another adjustment. I told them that they lost their combustion and that they need to find the right "mix" of gas, air to get the kiln moving again but nothing is working.

  3. In Topic: gas firing

    Posted 4 Oct 2012

    View PostMarcia Selsor, on 04 October 2012 - 09:12 PM, said:

    I always found low barometric pressure to be good for firing. Whyis it stalling. can you crank it up by opening the damper and increasing the gas?
    What are you using? Propane or natural gas? What is your rating Pounds of pressure etc.?
    Have you ever gotten past Cone 7? is this a new problem? What is different? Did you load anything differently?
    Lots of variables, you need to give more information.
    Marcia

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