MAPP

WARNING: The increased power and rate of burn will almost certainly turn your PVC chamber into dangerous shrapnel. Do not use in PVC guns. Use with extreme caution. MAPP delivers 30% more power than Propane. Uses the same torch head you may have modified for propane. Available in the plumbing departments of home improvement stores like Home Depot or Lowes. Keep tank upright to prevent liquid fuel from contacting the torch head. Room temperature tank pressure is 94 PSI, but plan your meter pipe for pressures under 50 PSI. Your fuel meter will need to measure roughly double the amount of fuel you were using for propane.

MAPP is a stabilized mixture of Methylacetylene and Propadiene, and is the trademark of BOC Gasses. MAPP gas has a noxious rotten egg odor that your nose can detect from very small leaks.