the new future of metal cutting with normal fuel from the pump.fast,effective and safe.7liters of petrol replaces one bottle of aceteylene gas production. R70 versus R900. actual cost saving of 80/90% on gas.for profile cutting and heavy duty.3mm to 300mm thickness of steel can be cut.no grinding of steel needed after cutting with petromax torches.torches are very light and easy to use.can be used to heat steel and for welding.12 years in use in the USA.cuts thick steel 3x faster than gas.