While barometric dampers are most accurate when installed horizontally to allow the weight to counter gravity predictably

Wide Capability: Certified for use with natural

This 20K Ohm NTC thermistor is engineered for high-accuracy performance within Honeywell Excel series environments

This actuator is intended for replacement on Series B and C dampers only and is not compatible with Series A hardware

Heil Quaker ICP 1172826 Blower Vent Els PW 17895 While barometric dampers are mostThe Heil Quaker ICP 1172826 Blower Vent is a critical combustion air component designed specifically for 90+ AFUE 2 stage gas furnaces. Engineered for high efficiency HVAC systems, this assembly facilitates the precise movement of flue gases required for dual stage heating cycles. As an OEM ICP furnace part, the 1172826 ensures exact fitment and calibration within Heil, Tempstar, and Comfortmaker units, maintaining the pressure switch logic and