Burnham 8116321 Automatic Vent Damper for Boilers - 4

The Burnham 8116321 is a 4-inch automatic vent damper designed specifically for Burnham 202, 203, and IN3 series boilers. This safety and efficiency device automatically opens when the boiler fires and closes when the heating cycle ends, preventing heat loss through the vent pipe during boiler off-cycles.

Key Features:

• 4-inch diameter flue connection for proper fit on compatible Burnham boiler models
• Automatic operation improves boiler efficiency by reducing standby heat loss
• Electrically operated damper mechanism for reliable performance
• Factory-specified replacement part for Burnham 202, 203, and IN3 boilers
• Helps maintain optimal draft control and combustion efficiency

This automatic vent damper is an OEM Burnham component engineered to meet the exact specifications of your heating system. By preventing warm air from escaping up the chimney when the boiler is not operating, it can help reduce fuel consumption and lower heating costs while maintaining safe and efficient boiler operation.