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The Goodman B4022700 3" In-Shot Burner is a genuine OEM burner for the ADSS800804BXAD gas furnace and compatible Goodman/Amana models. In-shot burners deliver the gas/air mixture directly into the heat-exchanger tubes, and this precision stamped-steel unit is shaped to Goodman's exact port and venturi geometry for a stable, blue flame and clean, efficient combustion. Furnaces use one burner per heat-exchanger cell, so order the quantity that matches your unit.
OEM vs. Generic: The genuine B4022700 matches Goodman's port size, venturi, and mounting slot exactly, ensuring correct flame carryover and firing rate. Mismatched aftermarket burners can cause delayed ignition, sooting, or flame-rollout safety issues.
Install Difficulty: Moderate — burners slide onto the manifold orifices behind the burner bracket; replacement requires removing the burner assembly and verifying flame appearance. Recommended for a qualified technician. Plan on 30 minutes.