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help with gas kiln

updated mon 23 sep 02


Jami Jacobson on sun 22 sep 02

I have a question I hope someone can help me with. I have a 12 =
cubic ft gas kiln, that I fire with propane. During the bisque firing, =
I open the door, the peeps, the burner ports and the damper. If I turn =
the gas up and hear that healthy noise, the temperature climbs way too =
fast. If I turn the gas as low as I can, I get a long yellow flame and =
the temperature stays low. The problem is, that there is a small amount =
of black smoke that results in the kiln, and coats some pieces with =
black dust. I suspect that I have black coring because of firing this =
way. Is this a bad way to bisque fire, and if so, is there any other =
way to keep the=20
temperature below 200 degrees in the early stage?

Thank you in advance for any help with this!!

Yreka, CA