OXY-THERM® 300 Series Oil Fired Fuel Burners offer capacities up to 300,000 Btu/hr (88 kW) and provide clean combustion with low NOx levels. This fuel burner is available with choice of two block shapes OXY-THERM® 300 Series Industrial Burners use oxygen for the combustion reaction, removing atmospheric nitrogen as a source for NOx creation. OXY-THERM® Fuel Burners burn any gaseous fuel, and fuels that may be unstable using air for combustion.