James and Sherron Bowen on mon 3 sep 07
You may not be getting enough air in the primary or secondary . Fire it at
night and look at the flame coming out the top. We had this problem on a
similar kiln with exactly that size flue opening when we allowed more air to
be entrained with the flame (secondary air) we could see the flame shrink
back into the kiln and the temperature rise was dramatic.
JB
----- Original Message -----
From: "Mike Gordon"
To:
Sent: Monday, September 03, 2007 1:26 PM
Subject: Raku kiln not reachin temp
> Rosemary,
> My kiln has one opening at the top about 5 1/2", it's a fiber lined
> inside of Hog wire with clay button's to hold the fiber to the wire.
> Maybe too much heat is escaping? Mike Gordon
Mike Gordon on mon 3 sep 07
Rosemary,
My kiln has one opening at the top about 5 1/2", it's a fiber lined
inside of Hog wire with clay button's to hold the fiber to the wire.
Maybe too much heat is escaping? Mike Gordon
Forrest on mon 3 sep 07
Thanks to everyone who responded. I'm going to try to clean out the burners
and will contact Olympic to see how much of the top openings they recommend
leaving open during firing. Then I'll try it again. If it still doesn't
work, I'll replace the burners and put on a high-pressure regulator. I've
tried both opening up the gas line all the way and shutting it down bit by
bit. 500 degrees max no matter what I do. Great for pizza, not so hot for
raku.
Rosemary
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