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The Goodman B4022700 3-inch In-Shot Burner is a genuine OEM gas burner engineered for the ACEC800805CXAB and compatible Goodman/Amana furnaces. In-shot burners deliver a precise, stable flame into the heat exchanger tubes for clean, efficient combustion. Replacing cracked, corroded, or sooted burners restores proper ignition, even flame carryover, and rated heating output.
The OEM B4022700 is matched to your furnace's orifice size and manifold pressure for correct flame geometry and clean burn. Generic burners can alter the air/fuel mix, causing flame rollout, sooting, or poor carryover between burners. For a combustion component, OEM is strongly recommended for safety and efficiency.
Moderate (3/5). Requires removing the burner assembly and aligning the burner over the orifice. Best handled by a confident DIYer or technician; gas furnace work should be done carefully. Shut off gas and power before servicing.