what the difference between and acetylene torch and a propane torch
Acetylene runs about 5589'F Propane 4579'F. another reason is when they are moving people and equipment around in shipyards and scrap yards the propane is more stable in all situations than acetylene. The torch is different in the tip and passage design due to the different heating characteristics of the gases. The hottest part of the flame is the skirt or outside in the propane rather than the inner cone. The tip has to be held further away from the metal to preheat well.