Philip N Deal on thu 7 aug 97
In your experience, what is a reasonable amount of (propane) gas one
might consume in a cone 10 firing in a hard brick kiln? (Details - 20
cubic feet of interior space, 14 cubic feet stacking, sprung arch,
downdraft, 4 burners, ITC coating on inside of kiln, fairly tightly
constructed...)
I've used from 70 to over 100 gallons of propane, and am obviously hoping
that I can bring this down to under 50 gallons per firing. I saw the line
about size of tubing, etc. My first suspicion focuses on my home-made
burners. Maybe commercial burners would greatly improve my gas
consumption (but I don't want to throw money at something that "ain't
broke."). Thanks for your thoughts.
Philip Deal
pdeal@tenet.edu
972.291-3774
WardBurner@aol.com on fri 8 aug 97
Philip,
For that size kiln and construction you should be using 20-30 gallons of
propane. Something ain't right.... Too many variables for email so feel free
to give me a call.
Marc Ward
Ward Burner Systems
PO Box 333
Dandridge, TN 37725
USA
423.397.2914 voice
423.397.1253 fax
wardburner@aol.com
David Woodin Set Clayart Digest on fri 8 aug 97
I have a 24 cuft, 16cuft stacking, 2 forced air burners, downdraft, soft
brick, fiber door and roof. Use 10 to 11 gallons propane. 8 to 9 hr firing,
cone 10 at ten oclock. All coated with ITC 100.
Talbott on fri 8 aug 97
With our IFB 2400/2600 kiln... 40 cubic feet internal space, arched roof.
We usually use 50 gal of propane on a ^10 glaze reduction firing,,, perhaps
you can use insulating fiber to help improve the R-value of your kiln..
Hard bricks are not especially good insulators... We also use two burners
to fire the kiln that were designed by Nil's Lou... they are fantastic..
... Marshall
>----------------------------Original message----------------------------
>In your experience, what is a reasonable amount of (propane) gas one
>might consume in a cone 10 firing in a hard brick kiln? (Details - 20
>cubic feet of interior space, 14 cubic feet stacking, sprung arch,
>downdraft, 4 burners, ITC coating on inside of kiln, fairly tightly
>constructed...)
>
>I've used from 70 to over 100 gallons of propane, and am obviously hoping
>that I can bring this down to under 50 gallons per firing. I saw the line
>about size of tubing, etc. My first suspicion focuses on my home-made
>burners. Maybe commercial burners would greatly improve my gas
>consumption (but I don't want to throw money at something that "ain't
>broke."). Thanks for your thoughts.
>
>Philip Deal
>pdeal@tenet.edu
>972.291-3774
1ST ANNUAL CLAYARTERS' GALLERY - NAPLES, MAINE (Summer 1997)
http://fmc.utm.edu/~dmcbeth/cag/naples.htm
2nd Annual Clayarters' Gallery details will be forth coming!!!
Celia & Marshall Talbott, Pottery By Celia, Route 114, P O Box 4116,
Naples, Maine 04055-4116,(207)693-6100 voice and fax,(call first)
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Baker on sat 9 aug 97
We burn between 25-30 gallons of propane during a Cone 10 firing (12-14
hrs) in our 12-burner Olsen kiln that's appx 50 cu ft (36 cu ft stack
space). The burners are natural draft, the insulation is IFB 25's with
some 23's in the outer wall. The low pressure regulator at the burner
manifold is set at less than 1 psi, and we never need more than 3 inches of
pressure at the burners to get to full temperature -- and we run a
reduction atmosphere from Cone 06 onward (lt to medium), at a rate of about
100'F/hr. We get good, rich colors and our clay bodies don't suffer carbon
core brittleness.
Keeping burners and orifices clean, being a miser when it comes to the
fuel/air mix, and keeping a close watch on the damper through reduction
make all the difference in the world when it comes to saving gas. Exciting
as it may look, great billowing clouds of black smoke during reduction
generally just equals to a great waste of fuel!
Ellen Baker, Orion
orion@telcomplus.com
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