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The Goodman B4022700 3-Inch In-Shot Burner is a genuine OEM replacement burner designed for Goodman ADVC80603BNBB gas furnaces and compatible models. In-shot burners deliver a precisely aimed flame into the heat exchanger for efficient, quiet combustion. Corroded, rusted, or clogged burners cause rough ignition, delayed lights, and poor heating — replacing them restores clean, reliable furnace operation.
The OEM B4022700 is manufactured to Goodman's exact venturi and port geometry, which controls the air-fuel mix and flame shape. Generic burners can alter flame characteristics, leading to sooting, flame-sensor faults, or heat-exchanger stress. For combustion components, genuine OEM is strongly recommended.
Moderate — requires removing the burner assembly and accessing the manifold. Shut off gas and power first. Furnaces typically use a matched set of burners; inspect all of them while serviced. Professional installation recommended.