Snail Scott on fri 6 nov 09
Hi-
The undermounted exhaust vent on the college's
only kiln (electric) has overheated and died. I think.
It was too hot to touch when I taught on Wednesday
though the kiln was stone cold, so I do not have high
hopes. I'll be taking the kiln apart today to take a better
look if I can find anyone to help, but I'm hoping to get
budget for a replacement. I want a wall-mounted unit,
which would allow easier maintenance, negative
pressure, and the option of hooking up our forlorn old
donated 8-sided Knightwithout buying a second vent.
(And advance my ulterior plan of getting the Knight
wired in, then looking for a better second kiln to put in
its place. Easier to ask for a little money at a time than t
o ask for the outright purchase of the whole shebang.
First a vent, then wiring, then kiln...then world
DOMINATION! HAAA! (Insert evil cackle here)
In the meantime, I like the Skutt vent, but I'd like to hear
any testimonials for this and other vents, as well as for
vendors.
-Snail
KATHI LESUEUR on fri 6 nov 09
If that vent has died, it's probably the motor. Why not just remove
it and take it to Grainger to get a replacement. Those vents are
really simple devices. The wall vents are just a squirrel cage blower
(also called shaded pole) with tubing to vent. Make it yourself. I
don't often recommend making equipment yourself, but this is just a
simple fix. Even I can change out a motor and rewire a new one in.
KATHI LESUEUR
http://www.lesueurclaywork.com
On Nov 6, 2009, at 2:42 PM, Snail Scott wrote:
> Hi-
>
> The undermounted exhaust vent on the college's
> only kiln (electric) has overheated and died. I think.
> It was too hot to touch when I taught on We
jonathan byler on fri 6 nov 09
we have the bailey vent. I would not buy this again. I could do just
as well buying most of the parts from grainger or another supplier. I
was also not happy with how long the aluminum vent pipe lasted. we
have a high amount of sulfur in our clay (i have been told to suspect
the goldart), and where ever the gases from the electric kiln go, they
eat up metal. infact the top of the kiln is rotting away... bricks
are deteriorating only where in contact with the stainless steel shell.
anyway, I haven't noticed that our vent does much to stop the gases
from leaking out the top of the kiln too, but this may be a problem
with lid fit. will know more when the lid is rebuilt.
to make a long story short, I think an overhead vent hood would do
more good in terms of getting the nasty fumes out of the room. sadly
no one at my fine institution of higher learning can be made to care
enough to pony up the money...
-jon
On Nov 6, 2009, at 1:42 PM, Snail Scott wrote:
> Hi-
>
> The undermounted exhaust vent on the college's
> only kiln (electric) has overheated and died. I think.
> It was too hot to touch when I taught on Wednesday
> though the kiln was stone cold, so I do not have high
> hopes. I'll be taking the kiln apart today to take a better
> look if I can find anyone to help, but I'm hoping to get
> budget for a replacement. I want a wall-mounted unit,
> which would allow easier maintenance, negative
> pressure, and the option of hooking up our forlorn old
> donated 8-sided Knightwithout buying a second vent.
> (And advance my ulterior plan of getting the Knight
> wired in, then looking for a better second kiln to put in
> its place. Easier to ask for a little money at a time than t
> o ask for the outright purchase of the whole shebang.
> First a vent, then wiring, then kiln...then world
> DOMINATION! HAAA! (Insert evil cackle here)
>
> In the meantime, I like the Skutt vent, but I'd like to hear
> any testimonials for this and other vents, as well as for
> vendors.
>
> -Snail
William & Susan Schran User on sat 7 nov 09
On 11/6/09 4:15 PM, "jonathan byler" wrote:
> we have the bailey vent. I would not buy this again. I could do just
> as well buying most of the parts from grainger or another supplier. I
> was also not happy with how long the aluminum vent pipe lasted. we
> have a high amount of sulfur in our clay (i have been told to suspect
> the goldart), and where ever the gases from the electric kiln go, they
> eat up metal. infact the top of the kiln is rotting away... bricks
> are deteriorating only where in contact with the stainless steel shell.
>
> anyway, I haven't noticed that our vent does much to stop the gases
> from leaking out the top of the kiln too, but this may be a problem
> with lid fit. will know more when the lid is rebuilt.
>
> to make a long story short, I think an overhead vent hood would do
> more good in terms of getting the nasty fumes out of the room. sadly
> no one at my fine institution of higher learning can be made to care
> enough to pony up the money...
I have a Bailey vent and it's holding up well after 10 years of use.
Have replaced the flex pipe once.
Sulfur is indeed a nasty metal attacking substance.
Our bisque kilns at school show the effects of it.
You'll never be able to exhaust all gases from the kiln only with a direct
vent. There will always be a small amount escaping from openings in the
kiln.
I had a overhead vent before the direct vent.
It also will not exhaust all gases from the kiln.
The overhead also has an overheat cutoff, that shuts off the vent if the
motor gets too hot. It cut off every time the kiln reached 2000F.
I'd have to raise the vent to let it cool off before lowering it again, but
not low enough to collect all the fumes.
Maybe a combo of both for your bisque firings.
Bill
--
William "Bill" Schran
wschran@cox.net
wschran@nvcc.edu
http://www.creativecreekartisans.com
Eleanora Eden on thu 12 nov 09
>Date: Thu, 12 Nov 2009 07:40:10 -0500
>To: KATHI LESUEUR
>From: Eleanora Eden
>Subject: Re: exhaust vent
>Cc:
>Bcc:
>X-Attachments:
>
>It seems to me I remember that we replaced the Bailey vent motor with
>one from Grainger and it was the very same item, just with a different lab=
el.
>
>Certainly this Bailey vent is just put together from various parts people
>could get themselves. Once you see it you say, oh, yeah, but then a lot o=
f
>stuff is like that.
>
>Eleanora
>
>
>
>>If that vent has died, it's probably the motor. Why not just remove
>>it and take it to Grainger to get a replacement. Those vents are
>>really simple devices. The wall vents are just a squirrel cage blower
>>(also called shaded pole) with tubing to vent. Make it yourself. I
>>don't often recommend making equipment yourself, but this is just a
>>simple fix. Even I can change out a motor and rewire a new one in.
--
Bellows Falls Vermont
www.eleanoraeden.com
jonathan byler on thu 12 nov 09
the only thing that makes one of these vent kits special is
determining the gap where the vent tube mounts to the kiln. direct
mounting and you get full temp air coming out of the kiln and melting
your aluminum vent tube. too much gap and you don't get enough draw
from the kiln. the gap is made by sticking a small stack of washers
on each of the three screws that hold the galvanized or stainless
steel collar to the kiln wall. ours is maybe 1/8 - 1/4" wide on a
piece of 4" diameter vent tube.
it is not rocket science.
On Nov 12, 2009, at 6:40 AM, Eleanora Eden wrote:
>> Date: Thu, 12 Nov 2009 07:40:10 -0500
>> To: KATHI LESUEUR
>> From: Eleanora Eden
>> Subject: Re: exhaust vent
>> Cc:
>> Bcc:
>> X-Attachments:
>>
>> It seems to me I remember that we replaced the Bailey vent motor with
>> one from Grainger and it was the very same item, just with a
>> different label.
>>
>> Certainly this Bailey vent is just put together from various parts
>> people
>> could get themselves. Once you see it you say, oh, yeah, but then
>> a lot of
>> stuff is like that.
>>
>> Eleanora
>>
>>
>>
>>> If that vent has died, it's probably the motor. Why not just remove
>>> it and take it to Grainger to get a replacement. Those vents are
>>> really simple devices. The wall vents are just a squirrel cage
>>> blower
>>> (also called shaded pole) with tubing to vent. Make it yourself. I
>>> don't often recommend making equipment yourself, but this is just a
>>> simple fix. Even I can change out a motor and rewire a new one in.
>
> --
> Bellows Falls Vermont
> www.eleanoraeden.com
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