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The Goodman 22309501 is a genuine OEM flue pipe for the AMV91155DXBC high-efficiency condensing gas furnace. This internal vent pipe carries combustion byproducts from the heat exchanger to the induced-draft blower and vent connection. In a 90%+ AFUE furnace the flue path handles cooled, moisture-laden exhaust, so a cracked, corroded, or loose flue pipe can allow flue-gas leakage, condensate seepage, and pressure-switch faults — a safety-critical component that must match factory spec.
This is the exact-fit Goodman/Amana OEM flue pipe, dimensioned to seal correctly against the heat exchanger and inducer gaskets. Because the flue carries combustion gases, we strongly recommend OEM here — universal pipe with the wrong diameter or gasket surface risks leaks and improper draft. OEM keeps the combustion venting system safe and warranty-compliant.
Best handled by an experienced DIYer or HVAC technician. Requires shutting off gas and power, removing the burner/inducer access panel, replacing gaskets, and verifying a sealed connection. Because it involves the combustion path, a post-install draft and combustion check is recommended.