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The Goodman B4022700 is a genuine OEM in-shot burner sized for the Goodman/Amana DMP150-52AB gas furnace. In-shot burners inject a precise fuel-air mixture into the heat exchanger tubes. Rust, scale, or a warped venturi causes rough ignition, yellow flames, and delayed light-off — all corrected by replacing the affected burner(s).
Aftermarket burners frequently differ in venturi bore and orifice-to-port distance, which shifts the flame pattern and can trip the flame sensor. The OEM Goodman B4022700 holds the factory burner geometry, delivering a crisp blue flame and correct sensor rectification for safe, efficient operation.
Easy–Moderate (2/5). Shut off gas and power first. Burners slide out of the manifold assembly after removing the burner-box retaining screws; align the new burner over the correct gas orifice on reassembly. Replace burners as a matched set if several show corrosion. Typical job time is 20–30 minutes.
Keep combustion clean and quiet with the genuine Goodman B4022700.