[Clayart] Metal Stacks

[mel jacobson via Clayart]

Don, I hope you are not going to make your kiln stack with double wall metal. It will burn out in a year.
There is a picture of my spiral pipe metal stack lined with Kaowool liners in the kiln book.
It will last the life of your kiln.

Find a spiral pipe dealer in your area.. It comes in any size and length. In most cases you can pick a scrap piece like
10 or 12 inch and buy the liners. The liners come in one foot length. You match your kaowool liners to the
size of pipe you get. One inch increments. If you cannot find the liners, call Fire Brick Supply in Mpls. They can
ship direct.

You can create a metal opening with most standard Home Depot etc metal roofing openings.
A 14 foot spiral pipe lined stack can be carried up a ladder and placed in the roof opening
with you doing the install..

IN the winter we put a kiln shelf on top of the stack, or a plastic pail, or something
of your own design...but then our stacks are reachable. Colleen has designed a long pole
with a hook to place a plastic pail on our Tonka kiln. Remember everyone, Metal Bestos piping
is made for home fire places and small wood stoves...NOT KILNS.
mel

website: www.melpots.com
WWW.clayartarchives.com

[eric ciup via Clayart]

Damn, I've been using prefab insulating chimney for the past 900 cone 10
firings!! However I do have a four or five foot hard brick exit stack to
bring down the flue temperature and i make sure the gas is combusting in
the kiln and not in the chimney. I also agree that a lined stack is
excellent but I have at least 40 feet of spare prefab that I have picked
up at the side of the road over the years.