OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman B4022700 is a genuine OEM 3-inch in-shot burner for the ACEC800603BXAA gas/electric package unit. Each in-shot burner directs a precise gas/air mixture into a heat-exchanger tube for clean, stable ignition and efficient combustion. Replacing a corroded, sooted, or misfiring burner restores reliable lighting, even flame distribution, and proper furnace efficiency.
The OEM B4022700 is machined to the exact orifice alignment and venturi geometry the unit was designed for, ensuring correct flame characteristics. Generic burners can alter the air/fuel mix, causing flame rollout, sooting, or limit trips. Because the burner is a combustion-critical safety part, OEM is strongly recommended.
Requires shutting off gas and power, removing the burner box, and aligning each burner to its orifice and heat-exchanger inlet. Best handled by a licensed HVAC technician — budget 30–60 minutes and verify ignition and flame pattern after service.