The high blast torches are compact heating burners that deliver higher capacities than normal heating torches. These are a complete assembly with modified FR burner tip, mixers and valves. It uses small amounts of high pressure air (100-700 kPa) to pick up incoming gas at a modified mixer. The gas pressure is elevated and the resulting mixture of air/gas is delivered to the orifice in the inspirator, where large quantities of air required for combustion are induced. It is used for mould drying, ladle heating, crucible heating, metal melting, and general heating applications.