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The Goodman B4022700 3-inch In-Shot Burner is a genuine OEM combustion component for Goodman and Amana gas furnaces, including the AMEH800805DNAB. In-shot burners direct the gas-air mixture into the heat exchanger tubes for clean, efficient ignition. Rust, corrosion, or a distorted burner face causes rough ignition, delayed light-off, and sooting — this factory burner restores a crisp, correct flame pattern.
The OEM B4022700 matches the original burner-port drilling and orifice alignment, which is critical for a stable flame and proper carryover between burners. Generic burners can shift the flame pattern, leading to hot spots, incomplete combustion, and CO risk. For a combustion part, OEM is strongly recommended.
Rating: Moderate to Advanced — HVAC technician recommended. Requires gas and power shutoff, removal of the burner assembly, correct orifice/burner alignment, and a post-repair combustion and flame-sense check. Replace burners as a matched set when possible.
Genuine Goodman quality. Verify quantity and model fit before ordering.