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The Goodman 22309501 is a genuine OEM flue pipe designed for the AMV90905DXBB 90%+ AFUE condensing gas furnace. In a high-efficiency furnace, the flue pipe channels cooled exhaust gases from the inducer to the vent system. Because condensing furnaces run cooler, correct flue geometry and sealing are critical — a damaged or corroded flue pipe risks flue-gas leakage, inducer strain, and combustion faults. This factory replacement restores a safe, sealed exhaust path.
Aftermarket flue components often differ in diameter and gasket seating, creating exhaust leaks that are both dangerous and code-failing. This OEM Goodman flue pipe matches factory dimensions for a proper, gas-tight seal.
Moderate (2 of 5). Requires removing fasteners and reseating the vent connection; plan 20–40 minutes. Because this is a combustion-venting component, we strongly recommend a licensed HVAC technician verify the seal. Always shut off power and gas before servicing.