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The Goodman B4022700 3-inch In-Shot Burner is the genuine OEM gas burner for the AMVC81005CXBC variable-speed furnace. In-shot burners deliver a precisely shaped, self-aspirating flame into each heat-exchanger tube. Over time, rust, spider webs, and scale can distort the flame pattern, causing rollout, delayed ignition, or a rumbling "whoosh" on startup. Replacing worn burners restores clean, quiet, efficient combustion.
The factory OEM Goodman burner is stamped and ported to the exact geometry the AMVC8 heat exchanger was engineered around, ensuring correct flame carry-over and CO performance. Generic burners may vary in port count or venturi shape, which can shift the flame and reduce efficiency. For combustion components, we strongly recommend OEM to protect safety and warranty.
Moderate (3/5). Requires shutting off gas and power, removing the burner assembly retaining screws, sliding out the old burner, and seating the replacement so the flame crossover ports align. Recommended for experienced DIYers or a licensed technician. Always leak-check gas connections and verify a clean blue flame after installation.
Genuine Goodman quality, in stock and ready to ship. Questions on fit? Email info@nationalhvacparts.com with your full model and serial number.