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The Goodman B4022700 3-inch In-Shot Burner is a genuine OEM replacement engineered for ACES801005CXAA gas furnaces and compatible Goodman/Amana models. Each in-shot burner mixes gas and air and carries the flame into the heat exchanger tube. Over time, rust, scale, and lint can clog the burner ports, causing uneven flames, delayed ignition, sooting, or nuisance flame-sensor lockouts. Installing a fresh OEM burner restores a clean, blue, evenly distributed flame and efficient heat transfer.
This is a factory OEM burner machined to exact port geometry and air-shutter spacing, so flame characteristics and gas/air mixing match factory specs. Generic or universal burners often have slightly different port patterns that can shift flame impingement and reduce efficiency. For furnaces under warranty, OEM parts protect coverage.
Intermediate. Requires shutting off gas and power, removing the burner assembly, and aligning the new burner to the manifold orifice. Most burner sets are replaced together. Roughly 30–45 minutes for a competent DIYer; otherwise use a licensed HVAC technician.