Posted 28 September 2013 - 07:22 PM
Need more information
Oxidation, reduction,, what is area of kiln, what is btu output of burner, it there only one burner, pictures of exhaust, pyrometer, did you over load, how many hours, did tanks freeze,? Did you adjust damper.? How was weather there today! Do you load so there a shelf a few inches below exhaust?
I'm going to take a quick stab of and answer. Your kiln is not getting enough air, move burner back an inch at a time and see what pyrometer says.
Your hood is too close to top of kiln. I'll bet you can't reach in and adjust damper.
Wild guess says 1.5 to 2 inches will be solution,
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