Chris Schafale on tue 30 nov 04
I need to replace the duct on my kiln vent, since it has rotted out. I
seem to remember someone saying they used PVC instead of the flexible
aluminum for longer life. Can you use PVC all the way back to the kiln, or
do you have to use metal for part of the way? Thanks for any advice.
Chris
Light One Candle Pottery
Fuquay-Varina, North Carolina, USA (near Raleigh)
www.lightonecandle.com
Galleries of Pottery Forms by Clayart Potters: www.potteryforms.org
Email: chris at lightonecandle dot com
Taylor from Rockport on wed 1 dec 04
Chris,
I remember talking about this awhile back on the list with others. PVC will
not handle the heat of under the kiln nor the hot gasses. You need to have
a metal initial stage. Then PVC the rest of the way. I plan on making mine
pretty soon. Let us know how it works out with you.
Taylor, in Rockport
On Tue, 30 Nov 2004 20:31:01 -0500, Chris Schafale
wrote:
>I need to replace the duct on my kiln vent, since it has rotted out. I
>seem to remember someone saying they used PVC instead of the flexible
>aluminum for longer life. Can you use PVC all the way back to the kiln, or
>do you have to use metal for part of the way? Thanks for any advice.
...
claybair on wed 1 dec 04
Chris,
I don't know about the PVC but did
switch to the solid venting.
It's more work getting it to fit but
will last much longer.
Gayle Bair
Bainbridge Island, WA
http://claybair.com
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG]On Behalf Of Chris
Schafale
Sent: Tuesday, November 30, 2004 5:31 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: PVC duct for kiln vent
I need to replace the duct on my kiln vent, since it has rotted out. I
seem to remember someone saying they used PVC instead of the flexible
aluminum for longer life. Can you use PVC all the way back to the kiln, or
do you have to use metal for part of the way? Thanks for any advice.
Chris
Light One Candle Pottery
Fuquay-Varina, North Carolina, USA (near Raleigh)
www.lightonecandle.com
Galleries of Pottery Forms by Clayart Potters: www.potteryforms.org
Email: chris at lightonecandle dot com
____________________________________________________________________________
__
Send postings to clayart@lsv.ceramics.org
You may look at the archives for the list or change your subscription
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Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
Gerry Lockhart on wed 1 dec 04
PVC softens at a fairly low temperature.
Chris Schafale writes:
> I need to replace the duct on my kiln vent, since it has rotted out. I
> seem to remember someone saying they used PVC instead of the flexible
> aluminum for longer life. Can you use PVC all the way back to the kiln,
> or
> do you have to use metal for part of the way? Thanks for any advice.
>
> Chris
>
> Light One Candle Pottery
> Fuquay-Varina, North Carolina, USA (near Raleigh)
> www.lightonecandle.com
> Galleries of Pottery Forms by Clayart Potters: www.potteryforms.org
> Email: chris at lightonecandle dot com
>
> __________________________________________________________________________
> ____
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
> melpots@pclink.com.
Steve Slatin on wed 1 dec 04
Gerry's right -- I don't know the temp, but recall
from a non-pottery project heating vegetable oil
until it was warm enough to soften PVC after which
it could be bent. A normal cooking temp (roughly
350 F) was sufficient, and you could bend PVC around a
mold or flare the tube to 2x its normal diameter after
just a few seconds in the hot oil.
Steve Slatin
--- Gerry Lockhart wrote:
> PVC softens at a fairly low temperature.
>
>
=====
Steve Slatin -- Did you know there is schools
Where Bop -- and nothing but
Bop -- are taught?
Well, there am!
Sequim, Washington, USA
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Arnold Howard on wed 1 dec 04
You can use 4" PVC pipe, provided your building code approves. PVC lasts
longer than aluminum duct, especially if you fire clay with a high sulfur
content.
Do not connect the PVC directly to the KilnVent. Instead, use several feet
of flexible aluminum duct between the vent and the PVC. This prevents
fibration of the motor from transferring to the PVC.
Sincerely,
Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
arnoldhoward@att.net / www.paragonweb.com
----- Original Message -----
>I need to replace the duct on my kiln vent, since it has rotted out. I
> seem to remember someone saying they used PVC instead of the flexible
> aluminum for longer life. Can you use PVC all the way back to the kiln,
> or
> do you have to use metal for part of the way? Thanks for any advice.
>
> Chris
Gary Harvey on thu 2 dec 04
Suggestion: How about "stove pipe" you can get at any hardware store. Stove
pipe is the pipe they use to connect the old wood burning stoves/ heater to
the out side exhaust. I may not be using the correct terms but I think most
people will get the idea. Gary Harvey, Palestine TX
----- Original Message -----
From: "claybair"
To:
Sent: Wednesday, December 01, 2004 4:03 PM
Subject: Re: PVC duct for kiln vent
> Chris,
> I don't know about the PVC but did
> switch to the solid venting.
> It's more work getting it to fit but
> will last much longer.
>
>
> Gayle Bair
> Bainbridge Island, WA
> http://claybair.com
>
> -----Original Message-----
> From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG]On Behalf Of Chris
> Schafale
> Sent: Tuesday, November 30, 2004 5:31 PM
> To: CLAYART@LSV.CERAMICS.ORG
> Subject: PVC duct for kiln vent
>
>
> I need to replace the duct on my kiln vent, since it has rotted out. I
> seem to remember someone saying they used PVC instead of the flexible
> aluminum for longer life. Can you use PVC all the way back to the kiln,
or
> do you have to use metal for part of the way? Thanks for any advice.
>
> Chris
>
> Light One Candle Pottery
> Fuquay-Varina, North Carolina, USA (near Raleigh)
> www.lightonecandle.com
> Galleries of Pottery Forms by Clayart Potters: www.potteryforms.org
> Email: chris at lightonecandle dot com
>
>
____________________________________________________________________________
> __
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
> melpots@pclink.com.
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
Paul Herman on thu 2 dec 04
Greetings Ivor,
Your statement below is interesting.
I'm wondering what you wanted to find out, and what you found.
Would you elaborate?
best,
Paul Herman
Great Basin Pottery
Doyle, California US
http://www.greatbasinpottery.com/
----------
>From: Ivor and Olive Lewis
>To: CLAYART@LSV.CERAMICS.ORG
>Subject: Re: PVC duct for kiln vent
>Date: Wed, Dec 1, 2004, 4:46 PM
>
> Many years ago I wished to collect fumes form a small salt kiln and
> thought to use a vacuum cleaner to blow the effluent into the
> collection device .
> The vac ran for about three mins, then the heat got to it. Melted the
> solder on the connections to armature and the commutator. Just died.
> Solved the problem by constructing a ceramic Venturi Extractor.
> Best regards,
> Ivor Lewis.
> Redhill,
> S. Australia.
Ivor and Olive Lewis on thu 2 dec 04
Dear Chris Schafale,
If you are drawing hot gas through this vent heat will do a lot of
damage. If PVC begins to burn it give toxic fumes.
Many years ago I wished to collect fumes form a small salt kiln and
thought to use a vacuum cleaner to blow the effluent into the
collection device .
The vac ran for about three mins, then the heat got to it. Melted the
solder on the connections to armature and the commutator. Just died.
Solved the problem by constructing a ceramic Venturi Extractor.
Best regards,
Ivor Lewis.
Redhill,
S. Australia.
Louis Katz on thu 2 dec 04
I worry about anything near heat and forced air catching fire. A well=20
fanned plastic fire would probably produce lots of smoke and spread=20
fast. The average housefire totals a house in less than 15 minutes. I=20
do not think that smoke detectors are protection enough for a system=20
like this if it is in your house. Please be careful.
Louis Katz
Not a safety expert, not a fireman, had a little training as a=20
volunteer fireman in Rhode Island.
On Dec 1, 2004, at 4:25 PM, Taylor from Rockport wrote:
> Chris,
>
> I remember talking about this awhile back on the list with others. =20
> PVC will
> not handle the heat of under the kiln nor the hot gasses. You need to=20=
> have
> a metal initial stage. Then PVC the rest of the way. I plan on=20
> making mine
> pretty soon. Let us know how it works out with you.
>
> Taylor, in Rockport
>
> On Tue, 30 Nov 2004 20:31:01 -0500, Chris Schafale
> wrote:
>
>> I need to replace the duct on my kiln vent, since it has rotted out. =20=
>> I
>> seem to remember someone saying they used PVC instead of the flexible
>> aluminum for longer life. Can you use PVC all the way back to the=20
>> kiln, or
>> do you have to use metal for part of the way? Thanks for any advice.
> ...KE5CVK
Longitude: 97=B0 23' 46" W (-97.3961=B0)
Latitude: 27=B0 48' 1" N (27.8003=B0)
Grid: EL17
Monitors IRLP Node 3499 Approximately 01 UTC(GMT) to 03 UTC
william schran on thu 2 dec 04
Chris wrote:> I seem to remember someone saying they used PVC instead
of the flexible
aluminum for longer life. Can you use PVC all the way back to the kiln, or
do you have to use metal for part of the way? <
Be safe, stick with metal. If not flexible metal duct, then rigid
galvanized or the best, stainless steel. Use metal duct tape to seal
all seams.
Bill
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