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The Goodman 0128F00006 chimney transition bottom is a genuine OEM flue and vent component for the AMVC800805CXAA gas furnace and compatible Goodman and Amana models. This transition piece channels hot combustion gases from the furnace's collector box and induced-draft blower into the vent connector, forming a properly sealed, correctly shaped path for exhaust. A warped, rusted, or ill-fitting transition can allow flue-gas leakage, condensation damage, or draft problems — making a factory-correct replacement important for safe, code-compliant venting.
Flue transitions must match the furnace's collector-box outlet and vent-pipe dimensions precisely to maintain proper draft and gasket sealing. The OEM 0128F00006 is stamped to exact factory dimensions. Generic or shop-fabricated substitutes risk gaps, poor draft, and flue-gas spillage. For venting components, genuine OEM is the safe choice.
Moderate. Shut off power, disconnect the vent connector, remove the fasteners and any old gasket or sealant, and fit the new transition using the correct high-temperature gasket. Reseal and secure per the installation instructions. Typically 20–40 minutes. Because improper venting can lead to carbon monoxide exposure, have the completed vent inspected if you are unsure.
Compatible with Goodman/Amana AMVC800805 furnaces. Confirm your OEM part number before ordering.