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The Goodman 22309501 is a genuine OEM flue pipe / vent component designed for the AMH951155DXAC 95%+ AFUE gas furnace. In a condensing furnace, the flue routes cool, moisture-laden combustion gases from the inducer assembly to the venting system. Because these gases are acidic and near the dew point, the flue must be the correct diameter, length, and material — this factory part matches the cabinet's exact fit so combustion products vent safely and efficiently.
Combustion venting is a safety-critical system. Generic or mismatched pipe risks poor seals, condensate leaks, and improper draft that can trip the pressure switch or, worse, allow flue gas escape. This OEM flue is built to the furnace's engineered specification and gasket profile, ensuring a tight, code-correct connection and reliable draft.
Moderate (3/5) — Because this is a combustion venting part, correct sealing and orientation are essential. Power down and shut off gas, remove the existing flue section, install the new pipe with proper gaskets/clamps, and confirm no leaks. If you are not comfortable working on the exhaust system, have a licensed HVAC technician perform this replacement.