The Most Efficient and Quietest Oil Furnaces Available: Dave Lennox Signature® Collection

You need an energy efficient furnace, which is why our Dave Lennox Signature Collection oil furnaces were built with variable speed motors. These motors adjust their speed based on the amount of heat needed which helps you save energy and soften operating sounds. Speaking of operating sounds, SilentComfort™ technology is another key feature in this equipment, keeping your home warm, cozy and quiet – unlike some standard heating systems.

Find out more about the Dave Lennox Signature Collection oil furnaces we offer at O'Brien Heating & Air Conditioning in the Main Line below. To a system that will work best for your family, call us at 610-257-7035 or make an appointment online.

SLO185V Oil Furnace

It’s nice to be inside a warm home when the temperature outside is not exactly cozy. The SLO185V uses a Beckett burner, which provides extremely efficient fuel economy. The burner and variable speed motor combine to help the SLO185V oil furnace produce an 85% AFUE rating*. In addition, it has even met EPA guidelines to obtain ENERGY STAR® qualification. If you’re in need of a high quality and efficient furnace that will generate reliable heat for years, the SLO185V is the perfect choice.

SLO185V Oil Furnace
Efficiency Rating (SEER): 85
Price Guide: $$$Energy Star badge

SLO183V Oil Furnace

Quiet, reliable and environmentally responsible: these combined features are key characteristics of the SLO183V oil furnace. A heavy-duty fuel pump and Beckett burner help enable reliable operation and help ensure a long product life. Additionally, the variable speed motor allows for greater control of indoor air quality components like humidity, so your air feels fresh all year long. It’s hard to go wrong when you go with the SLO183V.

  • Efficiency rating of up to 83% AFUE* can save you money on your monthly utility costs

  • Variable-speed motor provides a quiet and consistent flow of air for an ideal balance of temperature and humidity in your home

  • SilentComfort™ technology generates quiet, consistent heating

  • Beckett burner delivers super-efficient combustion for improved fuel economy

  • Lifetime Limited Warranty on heat exchanger

  • 10-Year Limited Warranty on covered components

SLO183V Oil Furnace
Efficiency Rating (SEER): up to 83
Price Guide: $$$

Looking for someone to help with your oil furnace maintenance and repair needs? O'Brien Heating & Air Conditioning in the Main Line can do it all. Just give us a call at 610-257-7035 or use our online scheduler to make an appointment.


* Annual Fuel Utilization Efficiency (AFUE) measures how efficient the appliance is in converting its fuel’s energy into heat over the course of a year.