AF/AFG Oil Burner

The AF & AFG burners utilize the most technically advanced components to meet the performance requirements of high efficiency equipment and meet the demands of biofuels to reduce emissions and meet carbon reduction goals. The AF/AFG burners are certified for traditional home heating oils, biodiesel blends to 20% (B20) and Renewable Diesel blends to 95% (R95) to give consumers reliable performance while reducing the carbon footprint of your heating system.


  • 0.40 to 3.00 gph
  • 56,000 to 420,000 BTU/hr input


  • ASTM D396 for #1 & #2 Heating Oil
  • ASTM D396 for B6 – B20 biodiesel blends
  • D975 for Renewable Diesel to 95% (R95)

Dimensions (standard)

  • Height: 11½”
  • Width: 12⅞”
  • Depth: 6 9/16

Electrical Characteristics

  • Power Supply: 120VAC / 60Hz / 1 Phase
  • Motor: Permanent Split Capacitor (PSC) 3450 rpm, NEMA M-Flange
  • Ignition: Solid State, rated for continuous duty. Uses 75% less energy than traditional ignition transformers
  • Operating Load: 5.8 Amps @ 120VAC
  • Alternate Voltages / Frequencies: Contact Customer Service for availability

Fuel Unit

  • Beckett CleanCut®: Single or Two Stage standard
  • Alternates available – special order

Chassis Plan

  • Models to meet most retrofit applications. Consult your heating professional for specific application information.
  • Replacement chassis carry new burner warranty and current fuel certifications. See Warranty section for additional information.

Performance Capabilities

Nozzle Line Electrode Assembly – Self-centering, delivers oil to the nozzle, high voltage electricity to the electrodes; static plate controls and evens out air flow to the head for smooth, efficient combustion.

Flame Retention Head – One-piece flame retention burner head. Highly stable and intense combustion increases efficiency by as much as 35%.

Drive Motor – Continuous duty, permanent split capacitor, built for daily hard use and years of trouble-free operation. Overload protection included.

Ignition Transformer – 10,000 V/23 mA secondary positively and smoothly ignites fuel. Electrically balanced and shielded. No TV interference. Designed for heavy duty continuous operation.

Connector Tube Fitting – Special Beckett, high quality flare fitting.

Burner Housing – Sturdy die cast, precisely machined aluminum housing aligns pump and motor for smoothest operation and longest coupling life.

Order Burner Chassis

  • Model AF Burner Chassis
  • Type of Fuel Unit
  • Primary Control

Order Air Tube Combination

Air Tube Length (dimension A) and Firing Rate or Air Tube Combination Code (see table).

Order Accessories

  • Specify mounting requirement – Flanges and pedestals listed below
  • Sound Cover available – see Product Sheet
  • Outside Air Kits available – see Product Sheet or your heating professional
  • Spare parts, related controls, etc.

Air Tube Combination Chart

Firing Rate
Min-Max (G.P.H.)
Burner Head Usable Air Tube Length “A”
4½” 5⅜” 6⅝” 7¼” 9″ 10½” 13″ 16″
Less Head Less AF44 AF53 AF65 AF72 AF90 AF104 AF130 AF160
0.40-0.75 F0 AF44XR AF53XR AF65XR AF72XR AF90XR AF104XR AF130XR AF160XR
0.75-1.25 F3 AF44XN AF53XN AF65XN AF72XN AF90XN AF104XN AF130XN AF160XN
0.85-1.65 F6 AF44YB AF53YB AF65YB AF72YB AF90YB AF104YB AF130YB AF160YB
1.10-2.00 F12 AF44XO AF53XO AF65XO AF72XO AF90XO AF104XO AF130XO AF160XO
1.65-2.50 F22 AF44XP AF53XP AF65XP AF72XP AF90XP AF104XP AF130XP AF160XP
2.50-3.00 F31 AF44XS AF53XS AF65XS AF72XS AF90XS AF104XS AF130XS AF160XS

To Determine Air Tube Length

The Air tube Length (Dimension A) is the distance from the front of the burner housing to the end of the air tube.

Optional Supports

No. 5685 Pedestal Kit – For conversion applications where no mounting flange is required.
No. 5606 Pedestal Kit Extended – Provides elevation from 8¼” to 13″.

Adjustable Mounting Flange Kit

No. 5850 or 5432 Adjustable Mounting Flange Kit

No. 5850 is a two-piece split flange. No. 5432 is a one-piece flange. Both kits include a flange mounting gasket.

Flame Retention Heads

AF-AFG Burner Manual | 2020 | B20 Certified

AF-AFG Product Sheet
AF-AFG 240V Product Sheet
AF-AFG Product Sheet | 2020 | B20 Certified

Review Frequently Asked Questions and a list of Affected Products.

Warranty Information