IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman B4022700 3-inch In-Shot Burner is a genuine OEM gas burner for the AMVC800805CXAA 80% AFUE two-stage furnace. In-shot burners deliver the gas/air mixture directly into the heat exchanger tubes for efficient, even combustion. Furnaces of this size use one burner per heat-exchanger cell — replace as a matched set for balanced flame across all tubes.
The OEM B4022700 guarantees the correct throat diameter and flame geometry to align with the furnace's orifices and flame sensor. Generic burners can cause misalignment, poor flame sensing, and lazy or noisy ignition. OEM ensures proper combustion and safety-circuit compatibility.
Moderate (3/5). Shut off gas and power, remove the burner assembly bracket, slide out the old burner, and index the new one over its orifice. Roughly 30 minutes. Verify clean ignition and flame sensing after reassembly; leak-check all gas connections.