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kiln building questions...

updated wed 6 jun 12

 

Vinod Chettur on mon 4 jun 12


Sorry. I meant to write side arch bricks (9"x4.5"x?) laid on the 9" length =
=3D
with an overall arch thickness of 4.5" like the walls.Vinod

From: vchettur@hotmail.com
To: clayart@lsv.ceramics.org
Subject: Kiln Building Questions...
Date: Mon=3D2C 4 Jun 2012 18:22:33 -0400





Hi folks=3D2C
I'm getting ready to build a couple of kilns this summer. I will be buildin=
=3D
g the soda kiln (Plan 2) and gas kiln (Plan 3) from Joe Finch's book. These=
=3D
designs use IFB and hardbricks (upto the firebox level) in a single layer =
=3D
along with 2" fibre blanket backing. The blanket is also used on the base b=
=3D
etween the concrete blocks and hardbricks. I have the following questions:
I'm having some difficulty trying to figure out what arch bricks to order. =
=3D
The distributor sent me the list of K26 3" series IFBs that Thermal Ceramic=
=3D
s makes and it's quite confusing. 4 varieties of arch bricks and a bunch of=
=3D
other types of bricks like skew=3D2C key=3D2C wedge. The book says get sid=
e ar=3D
ch bricks (9"x3"x?). I don't know if the following helps but I calculated t=
=3D
he dimensions of the kilns.
Kiln 1 Arch Dimensions - Span (outer end to outer end) =3D3D 45"=3D2C Rise =
(to =3D
inside of arch) =3D3D 7.5"=3D2C Depth =3D3D 45"=3D2C Estimated Total Number=
of Bric=3D
ks =3D3D 110 (as per plan)Kiln 2 Arch Dimensions - Span (outer end to outer=
e=3D
nd) =3D3D 27"=3D2C Rise (to inside of arch) =3D3D 4.5"=3D2C Depth =3D3D 31.=
5=3D2C Estim=3D
ated Total Number of Bricks =3D3D 46 (as per plan
For now=3D2C I will fire to Cone 7. I was going to go with Superwool but th=
e =3D
distributor suggested going with Cerachem if I ever choose to do any Cone 1=
=3D
0 firings. Any suggestions given that Superwool has a lower bio-persistence=
=3D
.
Thanks a lot=3D2C
Vinod =
=3D

Vinod Chettur on mon 4 jun 12


Hi folks=3D2C
I'm getting ready to build a couple of kilns this summer. I will be buildin=
=3D
g the soda kiln (Plan 2) and gas kiln (Plan 3) from Joe Finch's book. These=
=3D
designs use IFB and hardbricks (upto the firebox level) in a single layer =
=3D
along with 2" fibre blanket backing. The blanket is also used on the base b=
=3D
etween the concrete blocks and hardbricks. I have the following questions:
I'm having some difficulty trying to figure out what arch bricks to order. =
=3D
The distributor sent me the list of K26 3" series IFBs that Thermal Ceramic=
=3D
s makes and it's quite confusing. 4 varieties of arch bricks and a bunch of=
=3D
other types of bricks like skew=3D2C key=3D2C wedge. The book says get sid=
e ar=3D
ch bricks (9"x3"x?). I don't know if the following helps but I calculated t=
=3D
he dimensions of the kilns.
Kiln 1 Arch Dimensions - Span (outer end to outer end) =3D3D 45"=3D2C Rise =
(to =3D
inside of arch) =3D3D 7.5"=3D2C Depth =3D3D 45"=3D2C Estimated Total Number=
of Bric=3D
ks =3D3D 110 (as per plan)Kiln 2 Arch Dimensions - Span (outer end to outer=
e=3D
nd) =3D3D 27"=3D2C Rise (to inside of arch) =3D3D 4.5"=3D2C Depth =3D3D 31.=
5=3D2C Estim=3D
ated Total Number of Bricks =3D3D 46 (as per plan
For now=3D2C I will fire to Cone 7. I was going to go with Superwool but th=
e =3D
distributor suggested going with Cerachem if I ever choose to do any Cone 1=
=3D
0 firings. Any suggestions given that Superwool has a lower bio-persistence=
=3D
.
Thanks a lot=3D2C
Vinod =3D

Vinod Chettur on tue 5 jun 12


Thanks=3D2C Eric. I'm going to look into these options. I found the AP Gree=
n =3D
catalog on Mark Peter's site and know how many of each type of arch brick t=
=3D
o get.Vinod

> Date: Tue=3D2C 5 Jun 2012 13:19:50 -0400
> From: eciup@gmx.com
> To: vchettur@HOTMAIL.COM=3D3B Clayart@LSV.CERAMICS.ORG
> Subject: Re: Kiln Building Questions...
>=3D20
> I'm afraid this is one of my favorite bugaboos. Ceramic fibre has very=3D=
20
> low thermal mass but lower insulating value than insulating firebrick.=3D=
20
> An argument can be made for lining the inside of a kiln with it=3D2C but =
in=3D
=3D20
> my opinion lining the outside is a waste of money. More insulting value=
=3D20
> can be had at lower cost with an 1800 degree insulating board or fill=3D2=
C=3D
=3D20
> vermiculite or k20 insulating brick. Check the data sheets.
>=3D20
> Eric

=3D

Eric Ciup on tue 5 jun 12


I'm afraid this is one of my favorite bugaboos. Ceramic fibre has very
low thermal mass but lower insulating value than insulating firebrick.
An argument can be made for lining the inside of a kiln with it, but in
my opinion lining the outside is a waste of money. More insulting value
can be had at lower cost with an 1800 degree insulating board or fill,
vermiculite or k20 insulating brick. Check the data sheets.

Eric
> Hi folks,
> I'm getting ready to build a couple of kilns this summer. I will be build=
ing the soda kiln (Plan 2) and gas kiln (Plan 3) from Joe Finch's book. The=
se designs use IFB and hardbricks (upto the firebox level) in a single laye=
r along with 2" fibre blanket backing. The blanket is also used on the base=
between the concrete blocks and hardbricks. I have the following questions=
:
> I'm having some difficulty trying to figure out what arch bricks to order=
. The distributor sent me the list of K26 3" series IFBs that Thermal Ceram=
ics makes and it's quite confusing. 4 varieties of arch bricks and a bunch =
of other types of bricks like skew, key, wedge. The book says get side arch=
bricks (9"x3"x?). I don't know if the following helps but I calculated the=
dimensions of the kilns.
> Kiln 1 Arch Dimensions - Span (outer end to outer end) =3D 45", Rise (to =
inside of arch) =3D 7.5", Depth =3D 45", Estimated Total Number of Bricks =
=3D 110 (as per plan)Kiln 2 Arch Dimensions - Span (outer end to outer end)=
=3D 27", Rise (to inside of arch) =3D 4.5", Depth =3D 31.5, Estimated Tota=
l Number of Bricks =3D 46 (as per plan
> For now, I will fire to Cone 7. I was going to go with Superwool but the =
distributor suggested going with Cerachem if I ever choose to do any Cone 1=
0 firings. Any suggestions given that Superwool has a lower bio-persistence=
.
> Thanks a lot,
> Vinod