Rheem-Ruud AP13147 Damper Assembly

The Rheem-Ruud AP13147 is a heavy-duty 5-inch vent hood damper assembly engineered for induced draft gas water heaters and commercial ventilation systems. This metal-constructed damper assembly functions by mechanically regulating airflow, effectively preventing energy-robbing backdrafts and ensuring that combustion byproducts like carbon monoxide are safely expelled from the building. Designed for compatibility with 5" diameter Rheem replacement parts, the unit utilizes a 120V drive motor configuration (often superseded by the AP13147-1) to modulate the flue opening. This HVAC ventilation damper is a critical component for maintaining high combustion efficiency and preventing the re-entry of toxic fumes into the mechanical room or living space. Pros frequently specify this draft hood assembly for its rugged durability in high-cycle commercial kitchen exhausts and industrial process ventilation scripts where atmospheric integrity is non-negotiable.

Key Benefits

• Ensures peak efficiency by preventing heated air from escaping through the flue during burner standby cycles.
• Provides a mechanical barrier against backdrafts, protecting the system from downdrafts and external debris.
• Rugged metal housing designed to withstand the corrosive exhaust environments typical of gas-fired appliances.
• Direct OEM part fitment ensures standardized mounting with existing 5-inch ductwork ventilation.

Common Questions

Is the AP13147 a direct replacement for my 5-inch heater flue?
Yes, this draft hood damper is specifically designed for systems requiring a 5-inch diameter connection. Always verify the part number on your existing assembly as modern units may require the updated AP13147-1 variant for specific wiring harness compatibility.

Can I install this damper assembly myself?
Because this component manages the expulsion of combustion gases, it should only be installed by a qualified HVAC technician. Improper installation of the exhaust vent damper can lead to flue gas spillage or dangerous pressure imbalances.

What is the primary function of the drive motor on this model?
The motor acts as the actuator, opening the damper blade before the burner ignites to allow for proper drafting and closing it once the heating cycle is complete to retain ambient heat.

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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.