[Clayart] Kiln Chimney extension of Metal

Vince Pitelka vpitelka at dtccom.net
Tue Jul 4 21:09:59 EDT 2017

Hi Helen - 
Above the top of the kiln on both our salt and soda kiln we use ordinary galvanized steel corrugated culvert pipe for the chimney extension.  We probably get six or eight years out of a piece of pipe on the salt kiln, and ten or more on the soda kiln.
- Vince

Vince Pitelka
Appalachian Center for Craft
Tennessee Tech University
vpitelka at dtccom.net  

-----Original Message-----
From: Clayart [mailto:clayart-bounces at lists.clayartworld.com] On Behalf Of Helen Stone
Sent: Tuesday, July 4, 2017 7:59 AM
To: Clayart international pottery discussion forum <clayart at lists.clayartworld.com>
Subject: [Clayart] Kiln Chimney extension of Metal

Hi folks, on my new soda kiln the chimney is made of dense firebrick up to above the firebox, then made of IFB up to the arch.  Above the arch |I would like to use either a metal piece or use regular house building red
bricks.   If I use the metal extension, do I have to line it with
insulating material?  For me it is not a viable option as only ceramic fibre would be available here in Ecuador.  Any advice would be appreciated.\

Helen at Rio Yambala, southern Ecuador
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