Ao Smith 100110800 Motorized Flue Damper 8 Inches

Product Description

The AO SMITH 100110800 is a motorized flue damper designed for use in heating applications where controlled flue gas venting is required. The damper uses an electric actuator to open and close the flue passage, improving system efficiency by preventing standby heat loss through the flue when the burner is not firing. It is sized at 8 inches in diameter, making it suited for mid- to large-capacity water heater or boiler venting systems. Installation is typically performed by a licensed plumber or HVAC technician familiar with gas appliance venting requirements.

This motorized flue damper is used on select AO SMITH BTR and BTRC model water heaters. It is intended for residential and light commercial heating applications where automatic flue closure between firing cycles is specified. The damper integrates with the appliance control circuit to sequence operation, ensuring the flue is open before ignition and closed during standby periods.

Key Features

• Motorized actuator opens and closes the flue passage automatically with burner sequencing
• 8-inch diameter flue connection matches mid- to large-capacity venting configurations
• Designed for heating applications on select BTR and BTRC model units
• Reduces standby heat loss by closing the flue when the burner is off
• OEM-style replacement part for compatible AO SMITH appliances

Compatibility

Compatible with select AO SMITH BTR and BTRC model water heaters as stated by the manufacturer. Verify the specific model number and venting configuration against the appliance installation manual before ordering.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician in accordance with local codes and the appliance manufacturer instructions. Shut off gas supply and disconnect power to the appliance before removing the existing damper or making any wiring connections. Confirm the damper interlock circuit is properly wired so the appliance cannot fire until the damper reaches the fully open position. Refer to applicable IFGC and local jurisdiction requirements for venting system standards.

Technical Specifications

• Type: Motorized
• Application: Heating
• Flue Size: 8 inches

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100110800