Jim,

I'm wondering if there should be a jumper attached to both ends of the CSST whereas the lightning current could flow "around" the CSST (basically bypass it) by traveling down the jumper.

In your example, a bare copper conductor attached to the fireplace enclosure and routed to wherever the CSST connects to the black steel pipe system.

I have this exact situation in my own 2 year old house! I'm with you - I'd sure like to hear from some other folks on this one!

__________________
Shane in KC "Deal Killer"? Nope...just an ASP (assisted suicide provider)!
Current favorite quote: "Character is doing the right thing when nobody is looking."