Burnham 8116322 5" Automatic Vent Damper for 204 and IN4 Boilers

The Burnham 8116322 is a 5-inch automatic vent damper designed specifically for use with Burnham 204 and IN4 series boilers. This aftermarket vent damper automatically opens when the boiler fires and closes when the heating cycle ends, helping to prevent heat loss through the vent system during boiler off-cycles.

Key Features:

• 5-inch diameter flue connection for precise fitment
• Automatic operation - opens during firing, closes when idle
• Direct replacement for Burnham 204 and IN4 boiler models
• Reduces standby heat loss and improves seasonal efficiency
• Helps prevent cold air infiltration down the chimney

This automatic vent damper is an energy-saving accessory that helps maintain boiler efficiency by minimizing heat loss when the system is not actively heating. The motorized damper blade responds to boiler operation, creating a seal in the vent system during standby periods while ensuring proper venting during combustion cycles.