Beckett 5912U L1 Combustion Head Assembly for AFG Oil Burners

The Beckett 5912U is an L1 type flame retention combustion head assembly designed specifically for Beckett AFG series oil burners. This OEM replacement component is a critical part of the burner's combustion system, engineered to optimize fuel atomization and flame pattern for efficient, reliable heating performance.

Key Features:

• L1 flame retention head design for enhanced combustion efficiency
• Compatible with Beckett AFG burner series using MB-style air tubes
• Suitable for firing rates from 0.40 to 1.10 GPH (gallons per hour)
• Precision-engineered for proper flame shape and heat distribution
• Durable construction for long service life in residential and light commercial applications
• Factory Z-dimension setting of 1-3/8 inches for straight shroud air tubes or 1-3/4 inches for conic shroud tubes

The L1 combustion head is designed to work with 8-hole AFG MB series air tubes and is ideal for heating systems including oil-fired boilers, furnaces, and water heaters. This component must be installed by a qualified, licensed HVAC technician using properly calibrated combustion test equipment to ensure safe and efficient operation. The 5912U provides reliable performance in residential heating systems, commercial boilers, and industrial heating applications.