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The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM flue/vent component designed for the Goodman ACVC80803BXBD 80% AFUE gas furnace and compatible Goodman/Amana models. This transition piece channels combustion byproducts from the furnace's induced-draft system into the chimney or vent connector, maintaining proper draft and a sealed venting path. A damaged or corroded transition can cause flue gas leaks, draft problems, and pressure-switch faults.
This OEM transition is stamped to the exact dimensions and flange pattern of the ACVC80803BXBD cabinet and induced-draft outlet. Generic sheet-metal substitutes rarely match the mounting holes or gasket surfaces, risking flue leaks and improper draft. For a venting component that carries combustion gases, an exact OEM fit is the safe choice.
Moderate — Requires removing the existing transition, cleaning sealing surfaces, and re-sealing to prevent flue gas leakage. Because it involves combustion venting, replacement is best handled by a qualified HVAC technician who can verify draft after installation.