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The B4022700 is a genuine OEM 3-inch in-shot burner for the Goodman/Amana ADV80703BXBB gas furnace. Each in-shot burner directs the gas/air mixture into a heat-exchanger tube where it ignites and carries the flame across the section. Over time burners corrode, distort, or clog with rust and debris, producing lazy or yellow flames, delayed ignition, roll-out, and reduced efficiency. Replacing worn burners restores crisp blue flames and reliable, complete combustion. Furnaces use one burner per heat-exchanger cell, so match the quantity to your model.
Genuine Goodman in-shot burners are dimensioned for the exact port size, venturi, and heat-exchanger inlet of this furnace, preserving the factory air/fuel mixture and flame pattern. Generic burners may differ in port orifice or length, causing improper combustion, sooting, or nuisance flame-sensor faults. For safe, efficient heating, OEM burners are strongly recommended.
Moderate (3/5). Requires removing the burner assembly, transferring burners while keeping orifice alignment, and verifying flame pattern on startup. Roughly 45–60 minutes. Shut off gas and power before servicing; a combustion check afterward is recommended.