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The Goodman 0128F00006 is a genuine OEM chimney transition bottom for the AMVC80805DXBC 80% AFUE gas furnace. This sheet-metal flue transition seats between the furnace's induced-draft outlet and the vent connector, forming the base of the venting path that carries combustion byproducts safely to the chimney. A correctly fitted transition maintains proper draft and a sealed connection — critical for keeping flue gases out of the living space.
The OEM 0128F00006 is stamped to match the exact outlet dimensions and mounting holes of this furnace, ensuring a tight, correctly aligned vent seal. A generic or field-fabricated transition risks leaks, poor draft, and code issues at the vent connection. For a safe, factory-correct fit, use the genuine OEM part.
Rating: Moderate (3/5). Shut off power and gas, disconnect the vent connector, remove the old transition, and secure the replacement with sheet-metal screws. Reseal joints as required and verify proper draft with a combustion analyzer or draft gauge after startup. Venting work is best completed by a licensed HVAC technician.