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The Goodman B4022700 3-inch In-Shot Burner is a genuine OEM component for the GMNT060-3 furnace and other compatible Goodman/Amana gas models. Each burner directs the gas/air mixture into a heat-exchanger tube for clean, even combustion. Over time burners corrode, clog with rust flakes, or develop uneven flame patterns that cause delayed ignition, rollout, or a lazy yellow flame. Replacing worn in-shot burners restores crisp, blue ignition and efficient heating.
The OEM B4022700 matches the exact orifice alignment, venturi shape, and flame-carryover geometry your furnace was designed around, which keeps ignition timing and CO output within spec. Generic burners may light unevenly or misalign with the igniter and flame sensor. Because burners govern combustion quality, OEM is the safer choice.
Easy to Moderate — 20–40 minutes for a full set. Shut off gas and power, remove the burner-box cover, slide out the old burner, and seat the replacement so the ports align with the igniter and sensor. After install, verify a steady blue flame and check for proper carryover across all burners.