Rheem-Ruud AP13145-1 Damper Assembly

The Rheem-Ruud AP13145-1 Damper Assembly is a critical component for maintaining proper exhaust flow and preventing backdraft in power-vented water heaters. As the direct replacement for AP13145, this vent hood damper is engineered for a precise fit on specific residential gas models. It functions by opening to allow combustion gases to escape during the heating cycle and closing to retain thermal energy when the burner is idle. Proper installation of this OEM Rheem water heater part ensures the pressure switch detects correct vacuum levels, preventing nuisance lockouts and ensuring safe flue gas venting. This assembly includes the motor and linkage required for immediate field installation. For contractors servicing power vent water heaters, verifying the damper motor operation is essential for system efficiency and code compliance. This replacement vent damper is built to withstand high-temperature exhaust environments while maintaining rigorous cycling reliability.

Key Benefits

• Direct OEM Replacement: Ensures electrical and mechanical compatibility with AP13145 specifications.
• Improved Thermal Efficiency: Minimizes standby heat loss through the exhaust vent when the unit is not firing.
• Reliable Actuation: Features a high-torque motor designed for high-cycle environments in gas water heater venting.
• Precision Fit: Simplifies installation for technicians by matching existing mounting points and wire harnesses.

Common Questions

Will the AP13145-1 fix a water heater that won't start?
If the blower is running but the burner fails to ignite, a sticking or failed damper assembly may be preventing the pressure switch from closing the circuit. Check for mechanical obstructions or motor failure.

Is this damper compatible with 3-inch or 4-inch venting?
The AP13145-1 is specifically designed for the vent size designated by the original unit's engineering specs; always verify the model number on the water heater rating plate before installation.

Can I replace just the motor on this assembly?
The vent hood damper assembly is typically replaced as a complete unit to ensure internal linkage integrity and proper seal alignment against combustion gases.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.