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Posted by Bob on December 24, 2006, 8:58 am
Hello,
My house is under construction and the plumber just installed the LPG gas
lines. I am suspicious that he might not have this right.
I have a buried gas tank which is not yet connected to the house. It will
be supplying a furnace, a cook-top, a fireplace and a tank-less water
heater. The plumber split the input into two lines just outside the house
with one line going to the water heater and the other line going to a
manifold that splits off to the furnace, cook-top, and fireplace. These
are all done with flex line (except the manifold and the pipes at entry to
the house and to the water heater).
The cook-top specifies minimum 5/8 inch flex line supply and the plumber
has used 3/4 inch from the manifold to the cook-top (about 30 feet).
That's good, but he only has 1/2 inch from the tank to the manifold
(about 15 feet). Seems like this is insufficient for the cook-top alone,
much less the furnace and fireplace as well.
I plan on asking the plumber for details on how he established these line
sizes and contacting the gas company to see if they will inspect the
installation.
Am I seeing this correctly? Any suggestions?
Thanks,
Bob
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Posted by Gary KW4Z on December 24, 2006, 10:24 am
First a disclaimer, I know nothing, myself, about LPG. That said, if it was
me, besides asking in the Newsgroup, as you have done, I would contact the
manufacturer of the equipment (furnace and cook top) as well as talking to a
representative of the local Natural Gas company, if there is one. It's true
Natural Gas and Propane does not use the same orifice size but given
pressure of the gas and the fact it's gas I'm guessing that the delivery
system (i.e. Size of pipes and procedure) would be the same. That way if
there is any local codes you might gain knowledge about them also.
On 12/24/06 8:58 AM, in article pan.2006.12.24.13.58.58.163210@dont.spam.me,
> Hello,
>
> My house is under construction and the plumber just installed the LPG gas
> lines. I am suspicious that he might not have this right.
>
> I have a buried gas tank which is not yet connected to the house. It will
> be supplying a furnace, a cook-top, a fireplace and a tank-less water
> heater. The plumber split the input into two lines just outside the house
> with one line going to the water heater and the other line going to a
> manifold that splits off to the furnace, cook-top, and fireplace. These
> are all done with flex line (except the manifold and the pipes at entry to
> the house and to the water heater).
>
> The cook-top specifies minimum 5/8 inch flex line supply and the plumber
> has used 3/4 inch from the manifold to the cook-top (about 30 feet).
> That's good, but he only has 1/2 inch from the tank to the manifold
> (about 15 feet). Seems like this is insufficient for the cook-top alone,
> much less the furnace and fireplace as well.
>
> I plan on asking the plumber for details on how he established these line
> sizes and contacting the gas company to see if they will inspect the
> installation.
>
> Am I seeing this correctly? Any suggestions?
>
> Thanks,
> Bob
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Posted by Steve Barker LT on December 24, 2006, 1:17 pm
I would be concerned at the use of so much flex pipe. Why not hard pipe for
the long runs?
--
Steve Barker
> Hello,
>
> My house is under construction and the plumber just installed the LPG gas
> lines. I am suspicious that he might not have this right.
>
> I have a buried gas tank which is not yet connected to the house. It will
> be supplying a furnace, a cook-top, a fireplace and a tank-less water
> heater. The plumber split the input into two lines just outside the house
> with one line going to the water heater and the other line going to a
> manifold that splits off to the furnace, cook-top, and fireplace. These
> are all done with flex line (except the manifold and the pipes at entry to
> the house and to the water heater).
>
> The cook-top specifies minimum 5/8 inch flex line supply and the plumber
> has used 3/4 inch from the manifold to the cook-top (about 30 feet).
> That's good, but he only has 1/2 inch from the tank to the manifold
> (about 15 feet). Seems like this is insufficient for the cook-top alone,
> much less the furnace and fireplace as well.
>
> I plan on asking the plumber for details on how he established these line
> sizes and contacting the gas company to see if they will inspect the
> installation.
>
> Am I seeing this correctly? Any suggestions?
>
> Thanks,
> Bob
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Posted by Bob on December 24, 2006, 5:52 pm
On Sun, 24 Dec 2006 12:17:45 -0600, Steve Barker LT wrote:
> I would be concerned at the use of so much flex pipe. Why not hard pipe
> for the long runs?
I will ask about that as well.
Bob
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Posted by Dan Deckert on December 24, 2006, 2:22 pm
: quoted-printable
You might take a look at http://www.missiongas.com/underground-tanks.htm =
to assure buried standards are met as well as supply standards. Your =
area of residence 'should' have a written set of standards for =
compliance with NFPA. The best source should be your local LPG dealer. =
Also take a look at http://www.missiongas.com/images/tank-distances.jpg =
for locating/placing ASME containers. While Mission Gas is located in =
Texas, I believe all states conform to the NFPA standards. Your local =
LPG supplier will probably refuse to fill or service your residence if =
compliance is not met/demonstrated for burial but would undoubtedly =
service you if the supply line is inadequately sized. In essence, that's =
not his problem.
On an additional note, the feed lines/trench from the tank to the house =
have burial marking standards as well. IE: Bedding/wrapping/cathodic =
protection/marking tape above the piping.
Dan =20
> Hello,
>=20
> My house is under construction and the plumber just installed the LPG =
gas
> lines. I am suspicious that he might not have this right.
>=20
> I have a buried gas tank which is not yet connected to the house. It =
will
> be supplying a furnace, a cook-top, a fireplace and a tank-less water
> heater. The plumber split the input into two lines just outside the =
house
> with one line going to the water heater and the other line going to a
> manifold that splits off to the furnace, cook-top, and fireplace. =
These
> are all done with flex line (except the manifold and the pipes at =
entry to
> the house and to the water heater).
>=20
> The cook-top specifies minimum 5/8 inch flex line supply and the =
plumber
> has used 3/4 inch from the manifold to the cook-top (about 30 feet).
> That's good, but he only has 1/2 inch from the tank to the manifold
> (about 15 feet). Seems like this is insufficient for the cook-top =
alone,
> much less the furnace and fireplace as well.
>=20
> I plan on asking the plumber for details on how he established these =
line
> sizes and contacting the gas company to see if they will inspect the
> installation.
>=20
> Am I seeing this correctly? Any suggestions?
>=20
> Thanks,
> Bob
------=_NextPart_000_0013_01C7274D.D5153390
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<BODY>
<DIV><FONT face=3DArial size=3D2>You might take a look at </FONT><A=20
href=3D"http://www.missiongas.com/underground-tanks.htm"><FONT =
face=3DArial=20
size=3D2>http://www.missiongas.com/underground-tanks.htm</FONT></A><FONT =
face=3DArial size=3D2> to assure <STRONG><FONT =
color=3D#ff0000>buried standards=20
are met as well</FONT></STRONG> as supply standards. Your area of =
residence=20
'should' have a written set of standards for compliance with NFPA. The =
best=20
source <U><FONT color=3D#ff0000>should be</FONT></U> your local LPG =
dealer. Also=20
take a look at </FONT><A=20
href=3D"http://www.missiongas.com/images/tank-distances.jpg"><FONT =
face=3DArial=20
size=3D2>http://www.missiongas.com/images/tank-distances.jpg</FONT></A><F=
ONT=20
face=3DArial size=3D2> for locating/placing ASME containers. While =
Mission Gas=20
is located in Texas, I believe all states conform to the NFPA standards. =
Your=20
local LPG supplier will probably refuse to fill or service your =
residence if=20
compliance is not met/demonstrated for burial but would undoubtedly =
service you=20
if the supply line is inadequately sized. In essence, that's not his=20
problem.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>On an additional note, the feed =
lines/trench from=20
the tank to the house have burial <STRONG><FONT=20
color=3D#ff0000>marking standards</FONT></STRONG> as well. IE:=20
Bedding/wrapping/cathodic protection/marking tape above the =
piping.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Dan </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>"Bob" <</FONT><A=20
size=3D2>bob@dont.spam.me</FONT></A><FONT face=3DArial size=3D2>> =
wrote in message=20
</FONT><A =
face=3DArial=20
=20
face=3DArial size=3D2>...</FONT></DIV><FONT face=3DArial size=3D2>> =
Hello,<BR>>=20
<BR>> My house is under construction and the plumber just installed =
the LPG=20
gas<BR>> lines. I am suspicious that he might not have this =
right.<BR>>=20
<BR>> I have a buried gas tank which is not yet connected to the =
house. It=20
will<BR>> be supplying a furnace, a cook-top, a fireplace and a =
tank-less=20
water<BR>> heater. The plumber split the input into two lines just =
outside=20
the house<BR>> with one line going to the water heater and the other =
line=20
going to a<BR>> manifold that splits off to the furnace, cook-top, =
and=20
fireplace. These<BR>> are all done with flex line (except the =
manifold and=20
the pipes at entry to<BR>> the house and to the water =
heater).<BR>>=20
<BR>> The cook-top specifies minimum 5/8 inch flex line supply and =
the=20
plumber<BR>> has used 3/4 inch from the manifold to the cook-top =
(about 30=20
feet).<BR>> That's good, but he only has 1/2 inch from the tank to =
the=20
manifold<BR>> (about 15 feet). Seems like this is insufficient for =
the=20
cook-top alone,<BR>> much less the furnace and fireplace as =
well.<BR>>=20
<BR>> I plan on asking the plumber for details on how he established =
these=20
line<BR>> sizes and contacting the gas company to see if they will =
inspect=20
the<BR>> installation.<BR>> <BR>> Am I seeing this correctly? =
Any=20
suggestions?<BR>> <BR>> Thanks,<BR>> Bob</FONT></BODY></HTML>
------=
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