ETL certification for commercial and industrial use in the US and Canada.
 Aluminized steel cabinet with duct flanges for easy ductwork connection.
 81% minimum thermal efficiency over 20� to 100�F temperature rise range for fuel savings.
 Patented aluminized steel dimple tube clam-shell heat exchanger for maximum heat transfer (409 stainless steel optional).
 Heat exchanger certified to withstand 3.0� W.C. external static for use in systems with long duct runs or high static accessories.
 Aluminized steel burner with stainless steel separator strip (409 stainless steel optional).
 Factory-installed power venter with differential pressure switch for proof of venting.
 Right-hand control access (left hand optional) with slide-out burner access.
 Single-stage gas controls (two-stage, electronic modulation, or building management controls using a 0-10 Vdc or 4-20 mA input optional).
 Automatic reset high limit safety control (manual reset optional).
 Intermittent pilot ignition with the continuous retry control system.
 Control terminal board and low voltage terminal connections.
 Gas control step-down transformer with 24V gas controls.
 4-point mounting with threaded rod (by others).
 Designed, Engineered & Assembled in the USA