Re: easy/safe to weld exhaust pipe with propane torch?
Propane torch won't cut it, although I've never used it, MAP and oxygen should do the trick.
Silver solder is good for water pipes and A/C, but it is too brittle to use on anything that will move. Anytime I join 2 pieces of copper tube, I use a coupling, unless one tube can be inserted into the other.
Last edited by Al.Fisherman; 04-03-2012 at 08:06 PM.