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The genuine Goodman B4022700 is a single 3-inch in-shot burner for the WFD18115S5CXCC gas furnace. Each burner directs a precise fuel-air stream into its heat-exchanger tube for clean, efficient combustion. Rust, scale, or a distorted burner causes uneven flames, delayed ignition, and rollout — replacing worn burners restores a crisp blue flame and proper heat transfer. Replace as a matched set for consistent performance.
The OEM Goodman burner matches the exact port pattern, throat size, and length for correct flame carryover and combustion. Generic burners can alter flame characteristics and trigger flame-sensor or rollout faults. For safe, efficient heating, choose OEM.
Easy (2/5) — Burners slide/clip into the manifold after removing the burner assembly. Shut off gas and power, verify flame alignment, and check for correct ignition. About 30 minutes; a combustion check by a technician is recommended.