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The Goodman B4022700 3-inch in-shot burner is a genuine OEM replacement for the AMVC81005CNBA gas furnace and compatible Goodman/Amana models. Each in-shot burner directs a precise fuel-air mixture into a heat-exchanger tube, producing a stable, evenly distributed flame for efficient combustion. Over time burners can rust, clog with debris, or distort — causing rough ignition, uneven flame, delayed light-off, or sooting. Replacing worn burners restores clean, quiet, efficient heating and helps protect the heat exchanger.
The OEM burner matches the exact venturi, orifice alignment, and slot pattern that Goodman engineered for correct flame characteristics and proper flame-sensor coverage. Generic burners may fit physically but can alter flame shape and combustion tuning. For safe, clean gas combustion, the OEM burner is strongly recommended.
Moderate (3 of 5). Requires removing the burner assembly and manifold. Shut off gas and power, remove the burner box, swap each burner while keeping alignment to the gas orifices, and verify flame carry-over on startup. Best for experienced DIYers or an HVAC technician; 45–60 minutes.
OEM Goodman quality for the AMVC81005CNBA furnace. Ships fast from NationalHVACParts.com.