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

We understand you desire an energy efficient furnace, which is why our Dave Lennox Signature Collection oil furnaces were made with variable speed motors. These motors vary their speed in relation to the amount of heat needed to help you reduce the amount of energy used and soften operating sounds. Now that we’re talking about operating sounds, SilentComfort™ technology is also a key feature in this equipment, enabling your home to stay warm, cozy and quiet – unlike some standard heating systems.

Find out more about the Dave Lennox Signature Collection oil furnaces we carry at Fleming Heating & Air Conditioning Inc. in South Beloit and Belvidere below. To see which system will work best for your family, call us at 877-389-2465 or schedule an appointment online.

SLO185V Oil Furnace

It’s nice to be inside a warm home when the forecast calls for weather that is anything but cozy. The SLO185V uses a Beckett burner, which provides extremely efficient fuel economy. Pair the burner with its variable speed motor, and you’ll find the SLO185V oil furnace produces 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 furnace for you.

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

SLO183V Oil Furnace

Quiet, reliable and environmentally friendly: these three features are key characteristics of the SLO183V oil furnace. A heavy-duty fuel pump and Beckett burner help increase reliable operation and help ensure a long product life. Additionally, the variable speed motor provides more control of indoor air quality components like humidity, so your air feels fresh year round. You can’t go wrong when you choose the SLO183V.

  • Efficiency rating of up to 83% AFUE* can help reduce your monthly utility bills

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

  • SilentComfort™ technology delivers the ultimate in 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? Fleming Heating & Air Conditioning Inc. in South Beloit and Belvidere can take care of it all. Just give us a call at 877-389-2465 or use our online scheduler to set up 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.