Low-NOx, High-Efficiency Burner for Package Boilers The Industry Leader in Proven NOx Reduction. ■ ■ ■ ■ ■ ■ ■ ■ ■ Reduces NOx, CO, VOC and particulate emissions Predictable and reliable combustion performance High turndown for maximum operating flexibility Stable flame with a wide range of excess air operation Simultaneous gas and oil firing capability For gas- or oil-fired boilers with heat inputs from 30 to 400 MMBtu/hr burner Advanced air-fuel staging and FGR for cost-efficient low-NOx performance Advanced oil tip design with lowest atomizing steam usage of any burner Quick ramp rate provides a rapid response to load swings Rugged. Reliable. Remarkable. The VARIFLAME burner delivers high-efficiency performance in gas-fired package boilers with NOx emissions as low as 20 ppm at 3 percent O2. With thousands of installations to its credit, the VARIFLAME burner uses advanced air-fuel staging techniques and can operate with or without FGR – setting a whole new standard for innovation that’s as simple as it is smart . Clean Combustion Made Simple. With no moving parts to adjust, the VARIFLAME burner is simplified in design but rugged in performance, even in the toughest applications. ■ Venturi Register: turbulence-free axial airflow, venturi shape minimizes pressure loss through the burner and maximizes velocity. ■ Swirler: produces stable flames and enables thorough mixing ■ Throat: precisely matched with the register and swirler design to provide an aerodynamically stabilized flame ■ Gas burner: unique injector orientation provides fuel staging within the flame envelope, reducing thermal NOx formation ■ Oil burner: advanced sprayer plate designs achieve a precisely controlled flame geometry

Dramatic NOx Reduction with Zero FGR Package Boiler Applications with Burner Heat Inputs up to 150 MMBtu/hr. ■ ■ ■ ■ ■ ■ ■ ■ Features breakthrough NOx-reduction techniques Low CO, VOC & particulate emissions Superior flame stability over existing zero-FGR designs Shorter flame length than burner with FGR Wide turndowns No moving parts Eliminates external FGR ductwork Sub-30 ppm NOx on natural gas – without FGR or steam injection COOL Combustion, Dynamic Performance. The VARIFLAME II burner features our breakthrough COOLflame™ NOx-reduction techniques that join forces with the advanced burner...