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The Goodman B4022700 is a genuine OEM 3" in-shot burner for Goodman/Amana AMV80704BXA 80% variable-speed gas furnaces. Each in-shot burner mixes gas and air and directs a clean, stable flame into its heat-exchanger tube. Warped, rusted, or clogged burners cause uneven flames, delayed ignition, roll-out, and flame-sensor lockouts. Furnaces typically use one burner per heat-exchanger cell, so inspect the full burner assembly and replace any that show corrosion or flame distortion.
The OEM B4022700 is dimensioned and ported to match this furnace's manifold pressure and orifice sizing, producing the correct flame pattern and clean combustion. Generic burners can misalign with the heat exchanger or alter the air/fuel mix, risking sooting, noise, or CO issues. For combustion components, OEM is the safe choice.
Moderate (2 of 5). Shut off gas and power, remove the burner box/manifold, slide the old burner off its orifice, seat the new one, and reassemble. Requires basic tools and care in alignment. A visual flame check after startup is recommended; when in doubt, use a licensed HVAC technician for gas work.
Compatibility note: verify your model and part number before ordering. Fits Goodman and Amana equipment.