CSST gas lines

[Buck Hartley, CMI]

Would you say these hanging CSST gas pipe were a defect?

Thanks!

[Rick McCullough]

That is a recognized type of interior gas pipe. To small a picture for support locations. May need additional supports.

[Jeffrey R. Pope]

Originally Posted by bhartley

Would you say these hanging CSST gas pipe were a defect?

Not based on anything that I can see in the picture. . .

[Randy A. Hagemo]

From the photo, it does not appear that the gas line is secured to either of the joists. Gastite specifies horizontal runs be support every 6' for 1/2" and 8' for 3/4" line. If its not supported, it should be. If it is, then it is not an issue.

[Buck Hartley, CMI]

I reported they were not supported.

[Gary Reecher]

The Tracpipe installation manual http://www.omegaflex.com/trac/techni..._OmegaFlex.pdf requires vertical support every 10 feet. Horizontal runs must be supported every 4 feet for 3/8th inch diameter, 6 feet for 1/2 inch diameter and 8 feet for 3/4, 1, 1-1/4, 1-1/2 and 2 inch diameters

[Bruce A. King]

More important issues for csst: (we have lots of it around here)

Everyone should know all of the following when inspecting homes with csst.

Did the house have any additional bonding for the gas lines?

If not, did you recommend it as an upgrade?

Do you know if and when the additional bonding was required in your area?

Do you know the difference between basic bonding on gas piping and additional bonding?

Do you know how the basic bonding is achieved?

Do you know how additional bonding is achieved?

[Thomas D. Phillips]

Fill us all in Bruce

[Bruce A. King]

The basic bonding is usually present but not visible unless you remove the furnace cover and also a small cover over the electrical connections. The equipment grounding wire should be attached to the furnace cabinet. This is poor bonding since the connection also relies on the furnace gas valve metal connection to provide the bonding over to the gas piping.

In many areas, it is now required to have "additional bonding" for the regular yellow csst piping. The black "counterstrike csst" piping sold by Omegaflex and TracPipe does not need the additional bonding in my area but I expect this to eventually change.

The additional bonding (equipotential bonding) typically requires a #6 or larger copper conductor between the main black iron gas pipe (with proper type clamp) at the meter and connected to the exisitng electrical ground rod. Some AHJ's are allowing it to connect inside the main panel but this technically does not provide 100 percent equipotential bonding as recommended by all (or some?) of the csst manufacturers.

I always include an upgrade for these also:
http://www.gasbreaker.com/


csst info:
http://www.omegaflex.com/trac/techni..._OmegaFlex.pdf