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 703-666-8907 or schedule an appointment online. SLO185V Oil FurnaceIt’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. Efficiency Rating (SEER): 85Price Guide: $$$ Product Brochure Contact Us to Learn More 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 703-666-8907 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.