Is This a Stupid Idea?

I've moved the Bailey into place and am building a roof. I need to build a exhaust port of some sort to go through the roof. I rejected the idea of purchasing $1000 of insulated pipe, flashing, etc from Burleson's, and John Britt suggested some sort of hood that doesn't touch the chimney, but can  direct the heat through the roof. The kiln has an optional fume hood (top piece in picture with "Bailey" on both ends) which was probably necessary when it was inside, but probably not in the kiln's current location.

How about turning the hood around and raising it above the kiln with some sort of angle iron or something so that the exhaust hole is above the chimney? Since I have absolutely no idea what I am doing, this could be the stupidest idea ever or perhaps I have stumbled onto a clever solution. Any thoughts?

Comments

  1. You could do that. I won't do too much to the kiln in case you want to sell it. The reason it is over the kiln is because there are fumes that it is trying to catch so they they don't go into the room. I would call Bailey and see what they say.

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  2. Why not use the hood as it was designed, right side up? Place the exhaust from the hood under the (larger) opening through the roof. The draft from the kiln should entrain cooler air ( think really BIG venturi) and reduce the temp of the gases going thru the roof. Keep in mind any metal that you put on the roof will eventually have to be replaced due to corrosion fron the kiln gases.

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  3. Own the same kiln. worth every penny to put up hood and chimney as Jim Bailey designed. You could lose everything in a fire started by kiln. Thermal blanket and packing around door and cart when in kiln also made kiln much more efficient. In my state, Massachusetts, we have to have kilns state inspected and certified. no, really. With such a short distance above kiln to roof, probably not that much to put in proper venting, and could save you a whole lot of headaches later. I have had mine 6 years and no corrosion on double walled chimney or vent pipe in hood.
    Lloyd Hamovit
    2 Rivers studios
    Newbury MA

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  4. I am with you Lloyd. Might just bit the bullet and buy the double walled pipe!

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  5. http://www.baileypottery.com/kilns/gasventing.htm

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  6. Why not use the hood as it was designed, right side up?

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