What is CSST and do you have it in your home?

If you have a newer home or just recently added gas, there is a good possibility that Corrugated Stainless Steel Tubing, or CSST was used.  This is a relatively new material that is approved for distribution of natural gas inside homes.

The most common issue with CSST is that it has not been properly bonded.  When CSST is installed without being properly bonded to current standards, there is an increased risk for damage to the material from a nearby lightening strike. When CSST is damaged, it can leak gas and cause a fire or explosion. Weather conditions in Oklahoma make our homes highly susceptible to lightening strikes.  The Governor of Oklahoma has just implemented an emergency order with regards to CSST and bonding.

The new emergency rule, at OAC 158-70-1-3(f), adds a requirement to a home inspection if the inspector observes yellow CSST.  The emergency rule directs all home inspectors to notify their client in writing that only a licensed electrical contractor can determine if the yellow CSST is properly bonded and grounded as required by the manufacturer’s installation instructions.

How would you identify CSST in a home?

Look for flexible tubing with a yellow jacket that covers the ridges.  It does not have to be yellow, Counterstrike has a black jacket, but the majority of the CSST in Oklahoma has a yellow jacket.  You would be able to see it in your attic connecting to your furnace and/or water heater.

What should I do if I have CSST?

If you think your home or business may have CSST, the Oklahoma Construction Industries Board recommends contacting a licensed electrician for an inspection.  CSST that has not been properly grounded should be bonded to the building’s electrical grounding system according to the manufacturer’s instructions and National Electrical Code.

For CSST or any home inspection questions, call our office at 405-301-3321 or send us a message at jan@nsohi.com.