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07-24-2008, 02:36 PM
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Member
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Join Date: Mar 2007
Location: Raleigh, North Carolina
Posts: 147
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Exposed CSST full length of wall
1 year warranty inspection this morning. It looks like the house was built for an electric dryer but the buyers wanted gas. Someone punched a hole in the laundry room ceiling, ran CSST down the wall, secured the CSST to the cabinet and drywall. When the CSST reached the floor, installed a rigid elbow and shutoff valve, then back to CSST behind the dryer.
Since CSST is so fragile, it seems that there is probably some requirement that it not be exposed on the interior. Did not find anything in Code Check under plumbing that helped. Any pointers?
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07-24-2008, 02:44 PM
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Join Date: Mar 2007
Location: Philadelphia PA
Posts: 1,334
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Re: Exposed CSST full length of wall
I don't think CSST is "that fragile", but it's clearly an amateur job. And, I don't see no drip leg, neither. I would call for a professional to come in and do it right.
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07-24-2008, 03:21 PM
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Join Date: Mar 2007
Location: Ormond Beach, Florida
Posts: 7,732
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Re: Exposed CSST full length of wall
While being butt ugly and having several 'questionable' routing practices shown in the photo, I don't see anything in the manufacturer's installation instructions 'prohibiting' "exposed work".
In fact, you can even have "exposed work" on a roof, and that is specifically addressed, so I would suspect that "exposed work" inside would also be allowed.
If the homeowner had it installed, I would just advise them that, when they go to sell, it may well come up, and that if they had the installed come back and fish it down the inside of the wall, the top and bottom could be enclosed, making that future problem not be a future problem.
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07-24-2008, 03:28 PM
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Join Date: Mar 2007
Location: Spring City/Surrounding Philadelphia area
Posts: 762
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Re: Exposed CSST full length of wall
John, my Code Check Plumbing book says clothes dryers are an exception for sediment traps on the gas line along with ranges, gas lights, and gas grills.
IRC 2419.4
According to this, it should be OK w/o the drip leg/sediment trap.
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07-24-2008, 04:57 PM
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Join Date: Jun 2007
Location: Oregon
Posts: 228
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Re: Exposed CSST full length of wall
John, my Code Check Plumbing book says clothes dryers are an exception for sediment traps on the gas line along with ranges, gas lights, and gas grills.
IRC 2419.4
According to this, it should be OK w/o the drip leg/sediment trap.
I agree with Nick that it is allowed to be installed without the trap. Under the commentary that Jerry posted a while back, they recommend a sediment trap, but do not require one. |
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07-24-2008, 05:00 PM
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Join Date: Mar 2007
Location: Connecticut
Posts: 837
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Re: Exposed CSST full length of wall
It should however be protected from damage. If that is in an area where large items are stored or moved around a puncture is possible.
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07-24-2008, 08:12 PM
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Join Date: Aug 2007
Location: Memphis TN.
Posts: 1,623
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Re: Exposed CSST full length of wall
.
Surely those Conduit Straps Cannot be Approved for this Application.
__________________
It Might have Choked Artie But it ain't gone'a choke Stymie!
Billy J. Stephens HI Service
Memphis TN.
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07-24-2008, 08:59 PM
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Join Date: Mar 2007
Location: Ormond Beach, Florida
Posts: 7,732
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Re: Exposed CSST full length of wall
Originally Posted by Billy Stephens
.
Surely those Conduit Straps Cannot be Approved for this Application.
Actually, they are.
From the 2008 Gastite Design and Installation manual. (underlining is mine)
f) Supporting CSST - Tubing shall be supported in a workmanlike manner with pipe straps, bands or hangers suitable for the size and weight of the tubing, at intervals not to exceed those shown in Table 4-2. A proper support is one which is designed as a pipe hanger, does not damage the tubing during installation, and provides full support. “J” Hooks may not be used as they may damage the CSST. Zip Ties/Cable Ties are not to be used as a primary support but may be used to organize or bundle CSST. See Table 4-5 for supporting CSST in a rooftop application.
That is their only requirement "suitable for the size and weight", I called them years ago and they said sure, EMT straps a okay, although at the time they said they "prefer two hole EMT straps over the one hole EMT straps".
If you have the 2008 manual, look at Fig 4-24 (page 49), you will see what looks like 1 one hole EMT strap and 1 two hole EMT strap securing the ends of the CSST. |
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07-24-2008, 09:32 PM
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Member
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Join Date: Aug 2007
Location: Memphis TN.
Posts: 1,623
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Re: Exposed CSST full length of wall
Originally Posted by Jerry Peck
Actually, they are.
From the 2008 Gastite Design and Installation manual. (underlining is mine)
f) Supporting CSST - Tubing shall be supported in a workmanlike manner with pipe straps, bands or hangers suitable for the size and weight of the tubing,
.
THANKS.
__________________
It Might have Choked Artie But it ain't gone'a choke Stymie!
Billy J. Stephens HI Service
Memphis TN.
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