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The Goodman B4022700 is a genuine OEM 3-inch in-shot burner engineered for the Amana/Goodman AMVC80805DXCA 80% AFUE furnace and compatible models. In-shot burners deliver a precisely shaped gas flame into each heat exchanger tube for efficient, complete combustion. Rust, scale buildup, or a distorted burner can cause rough ignition, delayed light-off, sooting, or uneven heating.
Burner port geometry and venturi shape directly control the air-fuel mixture and flame pattern. An OEM B4022700 guarantees the correct flame characteristics your heat exchanger and flame sensor are designed around. Generic burners can produce off-spec flames that trip the flame sensor or promote incomplete combustion and carbon monoxide risk.
Plan for 30–60 minutes. Shut off gas and power, disconnect the gas line and manifold, and remove the burner assembly to swap the affected burner(s). For best results and even combustion, replace all in-shot burners in the manifold as a matched set. A combustion analysis after service is recommended to confirm safe operation.