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Posted by Existential Angst on November 3, 2009, 9:51 am
Awl -
I'm doing some demo on my 50's kitchen, which was done pretty well,
overall -- 3/4 black pipe to a 6 burner stove, etc.
Except, they tee'd off underneath for the gas line to the oven, using 1/2 or
5/8" copper, flare fitting.
I've been told copper gets brittle with natural gas, and is therefore
against many codes. Is this accurate? Is this a recent discovery? Seems
odd that the original installers would use 3/4" black pipe, and then wimp
out at the end.
Are there similar restrictions with copper and propane? Other gases?
If this restriction is only with nat gas, I assume it's because of the
sulfer additive (smell) that reacts with the copper.
tia
--
EA
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Posted by charlie on November 3, 2009, 11:18 am
> Awl -
> I'm doing some demo on my 50's kitchen, which was done pretty well,
> overall -- 3/4 black pipe to a 6 burner stove, etc.
> Except, they tee'd off underneath for the gas line to the oven, using 1/2
> or 5/8" copper, flare fitting.
> I've been told copper gets brittle with natural gas, and is therefore
> against many codes. Is this accurate? Is this a recent discovery? Seems
> odd that the original installers would use 3/4" black pipe, and then wimp
> out at the end.
> Are there similar restrictions with copper and propane? Other gases?
> If this restriction is only with nat gas, I assume it's because of the
> sulfer additive (smell) that reacts with the copper.
> tia
> --
> EA
it's different in different parts of the country. call up and ask your local
inspector; they would know what is happening in your area.
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Posted by on November 3, 2009, 2:55 pm
On Tue, 3 Nov 2009 09:18:22 -0700, "charlie"
>> Awl -
>> I'm doing some demo on my 50's kitchen, which was done pretty well,
>> overall -- 3/4 black pipe to a 6 burner stove, etc.
>> Except, they tee'd off underneath for the gas line to the oven, using 1/2
>> or 5/8" copper, flare fitting.
>> I've been told copper gets brittle with natural gas, and is therefore
>> against many codes. Is this accurate? Is this a recent discovery? Seems
>> odd that the original installers would use 3/4" black pipe, and then wimp
>> out at the end.
>> Are there similar restrictions with copper and propane? Other gases?
>> If this restriction is only with nat gas, I assume it's because of the
>> sulfer additive (smell) that reacts with the copper.
>> tia
>> --
>> EA
>it's different in different parts of the country. call up and ask your local
>inspector; they would know what is happening in your area.
LOTS of soft copper used for both Propane and natural gas, but the new
stainless steel flex line appears to be the "now" thing.
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Posted by Jules on November 3, 2009, 3:34 pm
On Tue, 03 Nov 2009 14:55:30 -0500, clare wrote:
> LOTS of soft copper used for both Propane
Yeah - I've said it before, but I was surprised when I uncovered* my
propane line and it was 6" down at best and just soft copper - I'd
expected something better, or even double-walled, and buried a lot deeper.
* intentionally, having called the propane company and had the site marked
out, before anyone wonders ;-)
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Posted by Bob F on November 3, 2009, 11:47 am
Existential Angst wrote:
> Awl -
> I'm doing some demo on my 50's kitchen, which was done pretty well,
> overall -- 3/4 black pipe to a 6 burner stove, etc.
> Except, they tee'd off underneath for the gas line to the oven, using
> 1/2 or 5/8" copper, flare fitting.
> I've been told copper gets brittle with natural gas, and is therefore
> against many codes. Is this accurate? Is this a recent discovery? Seems odd
> that the original installers would use 3/4" black pipe, and
> then wimp out at the end.
> Are there similar restrictions with copper and propane? Other gases?
> If this restriction is only with nat gas, I assume it's because of the
> sulfer additive (smell) that reacts with the copper.
It depends on the content of your natural gas. The inspector's office told me
copper was OK now here in Seattle, FWIW. If you are concerned, talk to the
inspector locally, or your gas supplier.
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> I'm doing some demo on my 50's kitchen, which was done pretty well,
> overall -- 3/4 black pipe to a 6 burner stove, etc.
> Except, they tee'd off underneath for the gas line to the oven, using 1/2
> or 5/8" copper, flare fitting.
> I've been told copper gets brittle with natural gas, and is therefore
> against many codes. Is this accurate? Is this a recent discovery? Seems
> odd that the original installers would use 3/4" black pipe, and then wimp
> out at the end.
> Are there similar restrictions with copper and propane? Other gases?
> If this restriction is only with nat gas, I assume it's because of the
> sulfer additive (smell) that reacts with the copper.
> tia
> --
> EA