"Lighter gas" in the butane blowtorch?
I bought a blowtorch. The manufacturer states, " This product can only be used with butane. " Now I've bought "lighter gas," which is actually a mixture of butane, isobutane, and propane (the mixing ratio isn't specified). As far as I've researched, the pressure of propane is about 4-5 times that of butane, since this…