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The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM venting component for the Amana/Goodman AMVC81005CNCA gas furnace. This transition piece routes combustion byproducts from the furnace outlet into the flue/chimney connector, maintaining the correct draft path so exhaust gases exit safely. A properly fitted transition prevents flue-gas spillage and keeps the induced-draft system operating within spec.
Venting components must match the furnace's exact outlet dimensions and clearances. This OEM transition guarantees a leak-free, code-compliant fit. Generic substitutes risk gaps, flue-gas leakage, and draft problems that can trip pressure switches or create safety hazards.
Easy to Moderate — Usually secured with sheet-metal screws to the flue collar and vent connector. Ensure all seams are tight and the joint is sealed per code. Power and gas off before servicing. A confident DIYer can complete this; verify draft after install or call a technician.