CSST or Flex connectors thru cabinet

Posted by Petre on June 12, 2008, 7:23 am

KJPRO wrote:

>> Vern Heiler wrote:

>>> Thermo Pride has this statement in the installation. "These furnaces are

>>> set-up to be gas piped through either the left or right side by using a

>>> street elbow and a straight pipe. For the purposes of service, it is

>>> recommended that the gas union be located inside the furnace, when

>>> possible." Do you know if other mfg. have a similar statement?

>> Wow? Not any of the states I have worked in would allow that, even if it

>> is manufacturers listing. That comes under Gas codes. How do you turn off

>> and unhook that beast in a tight enclosure such as in Condo's, Apartments,

>> Trailer houses..etc?

>

> Simple, you turn the gas cock to the off position and break the black union.

> What's so hard about that?

And slide it right out.. ;-) Sure you do. I chatted with the Fire
Marshall yesterday at coffee.. He said absolutely not. He also said
someone should reread the listers instructions as there is no way that
would be acceptable. Also made some snotty comments about service people
from 3rd world states and countries.

>

** Posted from http://www.teranews.com **

Posted by KJPRO on June 12, 2008, 10:56 am

> KJPRO wrote:

>>> Vern Heiler wrote:

>>>> Thermo Pride has this statement in the installation. "These furnaces

>>>> are set-up to be gas piped through either the left or right side by

>>>> using a street elbow and a straight pipe. For the purposes of service,

>>>> it is recommended that the gas union be located inside the furnace,

>>>> when possible." Do you know if other mfg. have a similar statement?

>>> Wow? Not any of the states I have worked in would allow that, even if it

>>> is manufacturers listing. That comes under Gas codes. How do you turn

>>> off and unhook that beast in a tight enclosure such as in Condo's,

>>> Apartments, Trailer houses..etc?

>>

>> Simple, you turn the gas cock to the off position and break the black

>> union.

>> What's so hard about that?

>

> And slide it right out.. ;-) Sure you do. I chatted with the Fire

> Marshall yesterday at coffee.. He said absolutely not. He also said

> someone should reread the listers instructions as there is no way that

> would be acceptable. Also made some snotty comments about service people

> from 3rd world states and countries.

Slide it out, sure do.
Fire marshall said what wasn't acceptable? (Flex through cabinet)

Posted by Petre on June 11, 2008, 9:53 am

Vern Heiler wrote:

> What is the definition of "unprotected knockout"? Does that mean if there

> is a rubber grommet, its ok? Still would not stop lightning arc.

Doesn't make much difference. If you get hit by lightning , your screwed
anyway. Do you really think even a foot of metal is going to stop a few
hundred Billion volts of flash lightning? Have you ever noted the
aftermath of a lightning strike. Yes Virginia yous can use flex to hook
up a G.Furnace by the IMC. But do it right. The concern is sharp edge
damage and kinking is a helluva a no no.

>>> With the problem of lightning burning thru the thin wall of CSST, and

>>> subsequent bonding requirements now enforced by code officials, is

>>> running CSST or flexible gas connectors thru the side of the furnace

>>> allowed by mfg's. installation inst?

>>>

>>> The practice is not a code violation in itself but mfg. instructions

>>> trump code.

>>

>> It *is* against the manufacture's installation instructions and IMC to run

>> a flex line through an unprotected knockout.

>>

>

** Posted from http://www.teranews.com **

Posted by Vern Heiler on June 11, 2008, 4:11 pm

Petre, the problem is with the thickness of the flexible SST. Holes burn
thru easily. With thick schd. 40 black iron pipe, it just makes a black
mark on the exterior of the pipe.

> Vern Heiler wrote:

>> What is the definition of "unprotected knockout"? Does that mean if

>> there is a rubber grommet, its ok? Still would not stop lightning arc.

>

> Doesn't make much difference. If you get hit by lightning , your screwed

> anyway. Do you really think even a foot of metal is going to stop a few

> hundred Billion volts of flash lightning? Have you ever noted the

> aftermath of a lightning strike. Yes Virginia yous can use flex to hook up

> a G.Furnace by the IMC. But do it right. The concern is sharp edge damage

> and kinking is a helluva a no no.

>

>>>> With the problem of lightning burning thru the thin wall of CSST, and

>>>> subsequent bonding requirements now enforced by code officials, is

>>>> running CSST or flexible gas connectors thru the side of the furnace

>>>> allowed by mfg's. installation inst?

>>>>

>>>> The practice is not a code violation in itself but mfg. instructions

>>>> trump code.

>>>

>>> It *is* against the manufacture's installation instructions and IMC to

>>> run a flex line through an unprotected knockout.

>>>

>>

> ** Posted from http://www.teranews.com **

Posted by Zyp on June 11, 2008, 10:03 pm

Vern Heiler wrote:

> Petre, the problem is with the thickness of the flexible SST. Holes

> burn thru easily. With thick schd. 40 black iron pipe, it just makes

> a black mark on the exterior of the pipe.

>> Vern Heiler wrote:

>>> What is the definition of "unprotected knockout"? Does that mean if

>>> there is a rubber grommet, its ok? Still would not stop lightning

>>> arc.

>>

>> Doesn't make much difference. If you get hit by lightning , your

>> screwed anyway. Do you really think even a foot of metal is going to

>> stop a few hundred Billion volts of flash lightning? Have you ever

>> noted the aftermath of a lightning strike. Yes Virginia yous can use

>> flex to hook up a G.Furnace by the IMC. But do it right. The concern

>> is sharp edge damage and kinking is a helluva a no no.

>>

>>>>> With the problem of lightning burning thru the thin wall of CSST,

>>>>> and subsequent bonding requirements now enforced by code

>>>>> officials, is running CSST or flexible gas connectors thru the

>>>>> side of the furnace allowed by mfg's. installation inst?

>>>>>

>>>>> The practice is not a code violation in itself but mfg.

>>>>> instructions trump code.

>>>>

>>>> It *is* against the manufacture's installation instructions and

>>>> IMC to run a flex line through an unprotected knockout.

>>>>

>>>

>> ** Posted from http://www.teranews.com **

If the unit was a package unit, I could understand the "lightening" thing,
but a furnace in a closet, attic, or basement? I also recommend using black
pipe with a union for a solid connection, or flexible gas connector outside
of the appliance. It's required under UMC. What's really intersting is
the UMC also requires a drain leg, but no one does 'em anymore.

--
Zyp