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The Goodman B4022700 is a genuine OEM 3-inch in-shot burner engineered for the ACEC800805CXAA gas furnace and many compatible Goodman/Amana 80% AFUE models. Each burner directs gas from the manifold orifice into the heat exchanger, where it mixes with primary air to produce a stable, blue flame. Over time burners can rust, clog with scale, or distort from years of thermal cycling, causing rollout, delayed ignition, or a yellow, sooty flame. Replacing the burner restores reliable, efficient heating.
This is the factory OEM burner — exact port geometry and inlet dimensions guarantee correct flame shape and clearance to the flame sensor and igniter. Aftermarket generics are typically 20–30% cheaper but can vary in port size, leading to flame impingement or nuisance lockouts. For a combustion component, OEM is the safe choice.
Difficulty: Moderate. Requires shutting off gas and power, removing the burner assembly, and verifying flame alignment on restart. Plan for 30–45 minutes. Burners are usually replaced as a matched set — inspect the others while the assembly is open. Professional installation recommended if you are not comfortable working with gas appliances.