Designed to deliver more, ThermJet burners represent a technological leap forward in every area of design and performance that counts. ThermJet burners set new standards for velocity, emissions and flexibility. ThermJet has the highest operating velocity of any burner available.Comparison tests with competitive models prove ThermJet delivers the lowest emissions. 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.Installation, operation, and maintenance are simplified and less costly.Made to last - rugged Eclipse Combustion dependability and reliability are built in.Available in fourteen sizes with maxmum capacities from 150, 000 to 20, 000, 000 Btuhr. All models are available for use with preheated combustion air.