OSB - Oil Fired Steam Boiler Series 2

OSB - Oil Fired Steam Boiler Series 2

  • Factory tested
  • Easy service
  • Swing-away burner door
  • Low draft loss
  • Top access cleanout cover
  • Plug-in wiring harness
  • High efficiency oil burner
  • Flame retention head design
  • Solenoid valve
  • PSC motor
  • Solid state ignitor
  • Rear flue outlet
  • Cast iron sections with built-in air separator
  • Insulated heavy-gauge steel jacket
  • Limited lifetime warranty

Additional Information

Efficiency Rating Chart: 
Model AHRI Burner Cap (GPH) Net AHRI Ratings: Steam (Sq. Ft.) Net AHRI Ratings: Steam (MBH) % DOE Seasonal Efficiency (AFUE) - Steam Min. Chimney Size:
Rectangular
(x 15' high)
Shipping Weight
OSB-3 .95 358 86 84.0 8" x 8" 600
OSB-4 1.20 450 108 84.0 8" x 8" 705
OSB-5 1.45 546 131 83.9 8" x 8" 820
OSB-6 1.75 658 158 83.7 8" x 8" 920