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The Goodman 22309501 is a genuine OEM flue exhaust pipe designed for the AMV91155DXBA 96% AFUE two-stage gas furnace and compatible Goodman/Amana condensing units. This internal flue component carries combustion byproducts from the inducer assembly to the vent connection, and its correct shape and sealing are essential to safe, code-compliant venting. A cracked, warped, or ill-fitting flue pipe can allow flue gas leakage and disrupt the pressure-switch signal that proves proper draft.
Flue components are a safety item — this is not a place for approximate aftermarket parts. The OEM 22309501 matches the furnace's factory venting path, sealing surfaces, and clearances exactly, so draft and pressure-switch operation remain within spec. Generic substitutes risk poor seals, gas leakage, and failed inspections. Installing the genuine part keeps combustion venting safe and protects your Goodman warranty.
Rated Moderate (3 of 5). Because this handles combustion gases, work should follow the furnace service manual: shut off gas and power, access the vent/inducer area, replace the pipe with correct gaskets and sealant, and verify all joints. A combustion-analysis and leak check after startup is strongly recommended. If you are not comfortable with flue work, use a licensed HVAC technician.
Compatibility note: Verify your model and serial before ordering. Fits AMV91155DXBA; email info@nationalhvacparts.com to confirm other models.