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The Goodman 22309501 Flue Pipe is a genuine OEM vent component for the GKS90703BXAD gas furnace and compatible Goodman/Amana high-efficiency models. It channels combustion exhaust from the heat exchanger to the inducer and vent system, ensuring the products of combustion are safely evacuated from the cabinet. A correctly fitted flue pipe is essential for safe operation and proper draft.
Because it handles hot combustion gases, the flue pipe must match the furnace's exact diameter, length, and gasket seating. The OEM 22309501 is built to Goodman's factory spec for a proper seal and safe draft. Substitute pipes risk flue-gas leakage, condensation, and CO hazards — this is a part where OEM fit is a safety matter, not just convenience.
Moderate (3/5). Requires removing the vent connections, seating the new pipe with correct gaskets, and verifying a leak-free draft. Recommended for HVAC professionals. Always shut off power and gas, and confirm proper venting before returning the unit to service.