O23 Oil Furnace


Lennox O23 Oil Furnace

Elite® Series Clean, Quiet and Comfortable Home Heating

Stay warm for less with the efficient O23 furnace, designed to deliver lasting value and energy savings. High-quality components reliably deliver heat to every room, with little maintenance required.

Energy Efficiency

  • Efficiency ratings of up to 83% AFUE
  • Heavy-gauge steel heat exchanger—air to glide evenly over its smooth surface for maximum heating efficiency

Quiet Operation

  • Insulated blower compartment—minimizes operating sounds
  • Innovative combustion chamber—constructed from alumina-silica ceramic fiber, provides quiet operation and high efficiency

Reliable Performance

  • Beckett AFII burner—delivers super-efficient combustion for greater fuel economy
  • Heavy-duty fuel pump—provides quiet, reliable operation with fast shutoff of oil flow
  • Lifetime Limited Warranty on heat exchanger
  • 5-Year Limited Warranty on covered components
  • This product has earned the prestigious Good Housekeeping Seal