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The Goodman 22309501 Flue Pipe is a genuine OEM combustion venting component engineered for the GKS91155DXAE gas furnace and related Goodman/Amana 90%+ AFUE models. This flue/vent section safely routes hot combustion byproducts from the heat exchanger toward the exhaust system, and its exact-fit geometry ensures a leak-free seal at every gasket and clamp point.
Unlike universal or fabricated flue sections, this genuine Goodman part matches the original flange spacing, diameter, and draft characteristics of your furnace. That means proper draft pressure, correct pressure-switch operation, and no risk of combustion spillage. Aftermarket substitutes often require field modification and can compromise the venting seal.
Moderate. Replacement involves shutting off gas and power, removing the burner/vent access panel, and reseating the flue with its clamps and gaskets. Because this component handles combustion gases, we strongly recommend installation and a combustion/draft check by a licensed HVAC technician.