Besides the bars you will need a holder for the bar, oxygen hose and fittings, a supply of high pressure oxygen, and a high pressure regulator. You can source these from most welding supply shops. It is recommended that the Oxy-Gun Burning Bars be operated with a minimum 100 to 200 psi to cut most metals and with a minimum 180 to 250 psi to cut concrete. PGE's SuperHOT Bars require a minimum of 200 psi but operate most effectively at 250 psi. Oxy-Gun Burning Bar will consume approximately 100 cubic feet of oxygen in the course of normal usage, or approximately 1200 cubic feet during each hour of operation.
Many operators find liquid oxygen more convenient to use as their fuel source than oxygen gas.
Liquid oxygen can be used as your oxygen source as long as you have vaporizers capable of supplying the required volume and pressures without freezing up. PGE's Oxy-Gun Lever Action holder is the quickest, tightest holding, and most cost effective handle available. In general the larger the diameter of the bar, the wider the cut. Cut width allows for improved flow of the melted material. This prevents the material from re-solidifying in the cut.