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The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM flue-vent component for Goodman ADVC80805CNBA gas furnaces. This transition piece adapts the furnace's flue outlet to the vent connector/chimney run, channeling combustion byproducts safely out of the home. A corroded, warped, or ill-fitting transition can leak flue gases, so a proper OEM part is essential for safe venting.
This OEM Goodman transition is stamped to the precise collar dimensions and offset of your furnace's vent outlet. Generic or field-fabricated transitions rarely match exactly, leading to gaps, leaks, or improper draft. OEM ensures a tight, code-appropriate connection and correct flue-gas flow.
Replacement requires disconnecting the existing vent connector, removing fasteners and any high-temp sealant, and fitting the new transition to the flue outlet. Verify a proper seal and correct draft after installation. Budget 30–45 minutes. Because this involves flue-gas venting, we strongly recommend a licensed HVAC technician verify the connection and draft.
Ensure safe, leak-free venting on your ADVC80805CNBA furnace with the OEM Goodman 0128F00006 chimney transition bottom.