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The genuine OEM Goodman 22309501 flue pipe channels combustion gases from the heat exchanger through the induced-draft venting system on the GMS950453BXA 95% AFUE gas furnace. The flue is a safety-critical component: cracks, corrosion, or a poor seal can allow flue-gas leakage and disrupt the pressure-switch signal that proves proper draft. Using the exact factory flue pipe keeps your furnace venting safely and passing draft-proving checks.
The OEM 22309501 is formed to the exact diameter, length, and connection geometry of your furnace's induced-draft assembly, ensuring gas-tight, code-compliant venting. Because the flue handles combustion byproducts, we strongly recommend the genuine part — an ill-fitting generic substitute risks leaks, draft errors, and a failed safety inspection.
Moderate (3 of 5). Involves the sealed combustion path, so precision matters. Shut off power and gas, replace the flue with correct gaskets/clamps, and verify a leak-free seal. If you are not comfortable working on venting, have a licensed HVAC technician perform the swap.