Description
The Field Controls 46198901 MG1 Barometric Damper 4″ is a draft control component designed to regulate chimney draft by maintaining balanced airflow within venting systems. Its damper door responds automatically to changes in draft pressure, opening or closing as needed to stabilize flue conditions. Regulated draft conditions improve combustion stability, reduce excessive draft fluctuations, and support proper venting while minimizing unnecessary stress on connected heating equipment. Applied in compatible HVAC systems, the damper is fitted into the vent pipe to control the movement of combustion gases before they exit through the chimney.
