[cobrashoch]

I use Miller stuff, for my mig, tig, and stick welding. I both swear on them and at them at times. For oxy/acetylene I use a henrob set of torches. Been welding for years but as I stated above I saw a setup once were a guy used natural gas and air from a compressor. (Not to be confused with a plasma cutter) He was using his settup in a small body shop. At the time I wasn't much interested but down through the years the idea sort of grew on me. I know the gas company here in Indy mixes acetylene into our natural gas supplys though. I have a capped natural gas line in my garage. Ohekks question is a good one in my eyes and not one easily dismissed by conventional welding wisdom. I know special torches would be required for example. Its also assumed that LP is different from natural gas too.
cobrashock