Hi. I do everything..but..

ThorsgaardFoundry

Mostly, as a hobby, I cast.
I was looking for Flexible Yellow Propane Line on Google and it brought me here, so I registered. (I'm hooking up a big Reznor hanging furnace in my shop/foundry).

Will continue reading some posts, but looks more like a HOME DIY forum.. Doesn't look like there's any real interest in casting, metalwork, or Building shop tools and equipment.., but I'll lurk..

majakdragon

Although this is "basically" a home repair Forum, there are experts here that do commercial work also. You really should post in the Plumbing section for more answers. Not sure what type "flexible" gas line you are referring to. There is flex line for underground use and coated flex line for hooking up appliances that is metal underneath. Most interior gas service lines are hardpiped.

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ThorsgaardFoundry

Yeah, uh, I know.. plumbing. I was just sayin' Google brought me here, and why Google brought me here. That is all.

mdshunk

Often called "trac pipe", the real name is CSST (corrugated stainless steel tubing). Last I knew, you need to take a little class and get a certification card before the supply house is permitted (by the manufacturers of the stuff, not the government) to sell you pipe and fittings.