American Water Heaters AAP2710030 Flue Damper 7 Inches

Product Description

The AMERICAN WATER HEATERS AAP2710030 is a 7-inch flue damper designed for gas water heaters operating in DCG (demand control gas) mode. The flue damper controls exhaust flow through the vent stack, closing when the burner is off to reduce standby heat loss and improve overall system efficiency. It is installed in the flue outlet of compatible gas water heaters and is typically serviced by licensed plumbers or water heater technicians. The 7-inch diameter matches standard residential and light commercial flue collar sizes used on high-input gas water heaters.

This flue damper is suited for gas water heater installations where DCG mode operation requires an automatic damper to manage vent airflow. The damper mounts at the flue collar of the water heater and connects into the vertical or B-vent exhaust system. It is appropriate for both new installations and replacement service in residential and light commercial settings where reducing flue standby losses is a system requirement.

Key Features

• 7-inch diameter flue opening sized for compatible gas water heater flue collars
• Designed for DCG mode operation, coordinating damper position with burner demand
• Reduces standby heat loss by closing the flue when the burner is inactive
• OEM-style replacement for maintaining factory system performance

Compatibility

Designed as an OEM-style replacement flue damper for gas water heaters equipped with a 7-inch flue collar operating in DCG mode.

Installation Notes

Installation should be performed by a licensed plumber or qualified water heater technician in accordance with local codes and the appliance manufacturer instructions. Shut off the gas supply and allow the water heater to cool completely before beginning any flue or venting work. Ensure the flue damper wiring harness is connected properly to the water heater control circuit before restoring power or gas. Verify that all vent connections are sealed and comply with applicable venting standards before returning the unit to service.

Technical Specifications

• Flue Diameter: 7 inches
• Application Mode: DCG Mode

Standard Information

• Brand: AMERICAN WATER HEATERS
• Manufacturer Part Number: AAP2710030