Around here, copper can be used with propane or natural gas. It is not
allowed to have sweated fittings, nor compression fittings, they all must be
flared. The copper must be flexible, not sure of the grade, but it is the
thicker wall pipe.

"Edwin Pawlowski" wrote in message
news:EkcAf.150$Jn1.122@trndny01...

"Keith Williams" wrote in message
T...
In article ,
says...
I don't think he said natural gas.

Ok, maybe you'd rather sweat copper with propane in there? ;-)

--
Keith

Propane is often done with copper, mostly compression fittings. As for
sweating with propane in it, yes, it can be done. No., it won't explode.
All of our natural gas lines in commercial and industrial are welded.
Yes,
they are sometimes welded with gas in them, but the meter shut off.