Replies

1. 
   ajwat | Nov 18, 2011 08:12pm | #1

   exterior mounted gas line

   You must check with local gas supplier for OK.  In my area it is fine to run gasline outside. It should be painted and if it is the same color as the surface it is mounted to, it will seem to disappear. The pipe should be sized correctly for the distance, since you will want to run the smallest size pipe that will do the job.

1. 
   DanH | Nov 18, 2011 08:36pm | #2

   Of course the pipe needs to be of a variety (eg, iron) that is suitable for exposed installation, and needs to be protected from accidental damage.

2. 
   manhattan42 | Nov 18, 2011 09:47pm | #3

   What Type "gas Line?"

   The answer to your question depends upon what type 'gas line' you propose to run.

   Iron pipe has no special requirements.

   CSST run underground must be in conduit with the conduit vented under normal conditions.

   Plastic gas pipe is only approved for use outside buildings underground.

   You need to provvide more specific criteria for the installation of the "gas pipe" before anyone cn give you any sensible answer.

1. 
   geoffhazel | Nov 20, 2011 08:39pm | #4

   Manhattan42, I'm just wanting to install the insert.  Don't much care what gas line works as long as

   1. gets the job done

   2. meets code

   3. doens't look horrible

   Sounds like black iron will do the trick, now to check with the gas company.

1. 
   MarkH | Nov 21, 2011 06:18am | #5

   I think black iron pipe on the exterior will have to be painted or it will be a rusty mess before long.  I would look into other options.  Look at http://www.gastite.com they have some flexible pipe that may work, and looks easier to install.

1. 
   DanH | Nov 21, 2011 07:04am | #6

   We've had a 20-foot piece of black iron running horizontally, about 18 inches off the ground, from our meter to the outside of the utility room for about 35 years.  Yes, it is painted.  Wasn't originally, but we painted it (with ordinary house paint) when we resided the house 20-odd years ago, and probably again about 8 years ago when we repainted.  No serious rust.

   The OP indicated he WILL paint it, to conceal it.  I see no reason (unless he's a half mile from the ocean) to be concerned about rust.

   As for Gastite:

   Gastite®/FlashShield™ Flexible Gas Tubing has passed all requirements of ANSI LC1, which include testing for suitability for

   exposure of CSST piping systems to outdoor environments.

   a) Outdoors – When installed outdoors, the external jacketing shall remain intact as much as practical for the given installation.

   Any portions of the exposed stainless steel tubing shall be wrapped with tape or sleeved to prevent later threats by

   acid or chloride based cleaning solutions for masonry. Self-bonding silicone tape is recommended here for durability.

   b) Along side a structure – When installed along the outside of a structure (between the ground and a height of 6 ft.) in an

   exposed condition, the Gastite®/FlashShield™ CSST shall be protected from mechanical damage inside a conduit or chase.

   A conduit or chase is not required if the tubing is installed in a location that will not subject the Gastite®/FlashShield™

   CSST to mechanical damage.

1. 
   MarkH | Nov 21, 2011 07:14am | #7

   The black iron pipe on my house (vent pipe from meter in basement) has been a constant problem with rust, even when painted, so I replaced it, and painted it with oil based paint.  No more rusting problems to date.  I don't think all iron pipe is the same, maybe yours is more rust resistant than usual. 

3. 
   rdesigns | Nov 21, 2011 10:45am | #8

   1/2" black iron pipe will do

   1/2" black iron pipe will do the job.

   It can be painted very successfully if you clean the oil from its surface first.

   CSST is viewed very suspiciously by many inspectors, and yours may not approve it for that application. It is also more expensive than black iron, is more easily damaged, can't easily be painted, and requires more support and protection.