The industry standard for velocity burners, the low NOx Eclipse ThermJet burner represents a technological leap forward in every area of design and performance. Comparison tests show that the Eclipse ThermJet burner delivers the lowest emissions of any competitive model. Integrated gas and air orifices simplify burner piping, set-up, and adjustment. Air and gas inlets are independently adjustable in 90-degree increments to suit a variety of piping alternatives. The burners are available in 14 sizes with maximum capacities ranging from 150,000 to 20,000,000 Btu/hr. All models are also available for use with preheated combustion air. Installation, operation, and maintenance are simple and cost-effective. The Eclipse ThermJet burner direct fire burners are made to last – with rugged Eclipse dependability and reliability built-in.