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

We understand you want an energy efficient furnace, which is why our Dave Lennox Signature Collection oil furnaces were constructed with variable speed motors. These motors adjust their speed based on the amount of heat needed which helps you reduce the amount of energy used and soften operating sounds. Since we’re on the topic of operating sounds, SilentComfort™ technology is another key feature in these products, keeping your home warm, cozy and quiet – unlike some traditional heating systems.

Find out more about the Dave Lennox Signature Collection oil furnaces we carry at Twin Air LLC in Manassas below. To determine which system will work best in your home, call us at 703-754-1062 or schedule an appointment online.

SLO185V Oil Furnace

It’s nice to be in the warmth of your home when the forecast calls for weather that is not exactly cozy. The SLO185V is made with 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*. Additionally, it’s met EPA guidelines to receive ENERGY STAR® qualification. If you’re looking for an innovative 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 responsible: these features are key to 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 allows for more control of indoor air quality components like humidity, so your air feels fresh all year long. It’s tough to make the wrong choice when you choose the SLO183V.

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

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

  • SilentComfort™ technology produces quiet, consistent heating

  • Beckett burner delivers super-efficient combustion for greater 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? Twin Air LLC in Manassas has you covered. Just give us a call at 703-754-1062 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.