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SLO185V Oil Furnace

Dave Lennox Signature® Collection

SLO185V Oil Furnace

Variable speed means superior comfort

The SLO185V furnace works at different speeds to maximize comfort, while minimizing sound levels and energy costs. Quality components inside and out give you the assurance of long-lasting performance.


Here are some of the top features of the SLO185V:

vs. 65% AFUE vs. 55% AFUE

Efficiency rating of 85% AFUE can save you over hundreds of dollars each year* compared to older furnaces.

Variable Speed Motor quietly controls flow of air for added humidity control, indoor air quality and comfort.

SilentComfort™ technology delivers the ultimate in quiet, consistent heating.

High-Efficiency Beckett Burner delivers super-efficient combustion for greater fuel economy.


Features and Benefits

Energy Efficiency

  • Efficiency ratings of 85% AFUE
  • Heavy-gauge steel heat exchanger—allows air to glide evenly over its smooth surface for maximum heating efficiency

Quiet Operation

  • Variable speed operation—assures comfort, efficiency and considerable noise reduction
  • SilentComfort™ technology—ensures quiet operation
  • Innovative combustion chamber—constructed from alumina-silica ceramic fiber, provides quiet operation and high efficiency

Reliable Performance

  • High-Efficiency Beckett Burner—delivers super-efficient combustion for greater fuel economy
  • Heavy-duty fuel pump—provides quiet, reliable operation with fast shutoff of oil flow

Warranty and Specs

Warranty and Specs

  • Lifetime Limited Warranty on heat exchanger
  • 10-Year Limited Warranty on covered components

SLO185V Product Literature

Product Brochures


SLO185V Oil Furnace Product Brochure


*This chart depicts potential energy savings you can expect from the SLO185V furnace, versus older furnaces with lower efficiency ratings. Criteria used in this example are 2,000 full-load heating hours, with a 85,000 Btuh heating design load and $1.90 per gallon for oil. Your actual savings may vary, depending on the weather patterns in your local area, local fuel rates and your individual lifestyle.

Recognitions and Certifications

EnergyStar AHRI Certified ETL Listed U.S. (C) Intertek HRAI Canada

© 2015 Lennox International Inc.