MAPP Gas or Propane - Bernzomatic TS8000 Torch Kit

MAPP Gas or Propane? Which burns hotter? Searching the internet will return all kinds of speculation about the two fuels, still leaving you/us scratching heads. The Home Depot sent us the Bernzomatic TS8000 Torch with a can of MAP/Pro fuel. We thought that we&end the confusion, or some of it, by testing the MAP/Pro and the Propane. First of all, MAPP gas is not available any longer. The new fuel in the yellow bottle is now called MAP/Pro, which is just Propylene. Word on the streets has always been that MAPP (or MAP/Pro) burns hotter than propane, so you want MAPP gas. We wanted to see for ourselves, and then bring the data to you. We used our Bernzomatic TS8000 Torch with the MAP/Pro fuel, then we used a Propane tank with an older Bernzomatic broader tip. With a piece of 1/4" thick steel bar stock in the vice, we used each torch for 30 seconds to heat up the steel. Then we used our thermal imager to check the temps. In between torches, we quenched and cooled the steel back to ~85F. After the 30-second round, we did a 60 round as well. Results: Propane: 158F (30s) . 254F (60s) . 418F (60s w/TS8000 tip) MAP/Pro: 257F (30s) . 402F (60s) Those were pretty big differentials in temperature between the Propane and MAP/Pro, and I knew the geometry of the tips were much different. We then decided to switch the Bernzomatic TS8000 tip to the Propane cylinder and test again. The results were much different, after 60 seconds, the Propane with the TS8000 tip produced 418F.