Where the 2 psi natural gas pipe (black iron) exits the crawlspace I have in sequence a cutoff valve, a sediment/drip trap,and a gas regulator. It is from here, the gas regulator, that I would like to use the flexible gas appliance connector (36 inches) to the exterior gas pack. I have installed a section of black iron through the cabinet so the flexible gas appliance pipe does not enter in to the cabinet itself.
I know you can install this way for an indoor furnace, but I am unsure is the flexible appliance connector can be used outdoors.
Does anyone know if this is allowed?