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

Dave Lennox Signature Collection oil furnaces have two outstanding qualities: quiet and efficient operation. These features stand out thanks to the models’ variable speed motors, which work at different speeds to better control air flow, minimize sound levels and cut down energy costs. Have you heard? The sound – or lack thereof – on these oil furnaces is remarkable. SilentComfort technology enables heat to be produced and distributed without the loud noises typical in standard systems.

You can read more about each Dave Lennox Signature® Collection product below or call Farnell Heating & Air Conditioning Inc in Mobile to speak with a staff member about the ideal furnace for your home. Call us at 251-471-2674 or schedule an appointment online today.

SLO185V Oil Furnace

Energy efficiency is an important feature in any appliance. The SLO185V oil furnace is ENERGY STAR® qualified for meeting or exceeding efficiency requirements determined by the EPA. That means that you could save a significant amount of money each year on your utility bills, which is a good incentive if you’re already looking at an oil furnace replacement. The other features you’ll find below help the SLO185V’s durability and reliability, which helps keep your home comfortable even on the coldest days.

  • Efficiency rating of 85% AFUE* can help lead to lower utility costs
  • ENERGY STAR® qualified
  • SilentComfort technology delivers heat so quietly, you may not even hear it
  • Variable speed motor quietly helps improve air flow for added humidity control, indoor air quality and comfort
  • High-Efficiency Beckett Burner delivers super-efficient combustion for improved fuel economy
  • Lifetime Limited Warranty on heat exchanger
  • 10-Year Limited Warranty on covered components
SLO185V Oil Furnace
Efficiency Rating (SEER): 85
Price Guide: $$$Energy Star badge

SLO183V Oil Furnace

The SLO183V furnace works at varying speeds to maximize comfort and minimize sound levels and energy costs. The SLO183V contains multiple features that will help it operate smoothly for a long time. For starters, the Beckett burner produces highly efficient combustion so you get the most out of the fuel. Additionally, this system includes a heavy-duty fuel pump that helps provide quiet, reliable operation with quick oil shutoff options. A number of features are packed into this product, making it one of the best systems around.

  • Efficiency rating of 83% AFUE* can help contribute to lower monthly utility expenses
  • Variable speed motor provides a quiet and consistent flow of air for an ideal balance of temperature and humidity in your home
  • SilentComfort technology delivers the ultimate in quiet, consistent heating
  • Beckett Burner delivers super-efficient combustion for increased 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: $$$

Did you know we also take care of oil furnace repairs and maintenance in Mobile and the surrounding area? Call us at 251-471-2674 for more details or to set up a service visit.


* 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.