lightning strikes: Forget Code: CSST gas lines need bonding to reduce the risk of a fire. - 08/27/12 08:08 PM
If you own a newer home or you've recently had gas lines added to your home, there's a good possibility that Corrugated Stainless Steel Tubing, or CSST, was used.  This is a relatively new material that is approved for the distribution of natural gas inside of homes.  The best analogy I can think of to describe this material is that CSST is to steel gas pipes what PEX is to copper tubing, or Romex® is to rigid metal conduit.
CSST needs to be bonded.  The most common issue that home inspectors find with CSST is a system that hasn't been properly bonded. … (18 comments)