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)
 Gravity vented with 45� angled round vent connection for tighter ducting
 Blocked vent safety switch to verify proper 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 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