Did you mean flare fittings?

"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.