shane mickey on sat 23 feb 08
hello allits been awhile since i have posted, when the changeover or new software deal went down i did not reup.now i have the time so i did. anyway all the talk of the expansion diff between k-26 and k-23 is sillyifb expansion is minimal and in now way causes the brick to tear themselves apart. if this was the case allthese 20+ yr old reduction kilns would be gone by now. buying k-25s is extremely expensive, trust me i order materials several times a year throghout the country and i know personally that they are rarely used in industry and therefore not a common in stock item. same with k-20's they are getting harder to find, as they are fragile and not in heavy use.as to the reduciton question i think vince is right inrespect to burner placement andthe trough. although i do not build trough into the floor as this takes more material, thus wasteful. i just prop the shelves up a bit to allow good draft under the shelvesi disagree with vince on not using the burner air
adjustment or primary dial. i think this coupled with a active damper anda good passive damper system allows you to fine tune your reduction and maximize your climb rate. i recentlu built a smallreduction kiln with wards little mr750 burners we used an oxiprobe and set a heavy reduction and withthe help of a fluke meterwe still maintained a really fast climb. we had the damper at half closed, primaries open 1/2" and top to passives out. if we puta small sliver of brick in the passive holes we could watch the oxygen level change significantly. anyway i am so happy to be back onclayart! shane mickeykiln building and design serviceshttp://www.shanemickeypotterslife.blogspot.com/
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