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 made with variable speed motors. These motors adjust their speed in relation to the amount of heat needed so you can reduce the amount of energy used and minimize operating sounds. Now that we’re talking about operating sounds, SilentComfort™ technology is also a key feature in these models, enabling your home to stay warm, cozy and quiet – unlike some typical heating systems. Find out more about the Dave Lennox Signature Collection oil furnaces we offer at Northern Comfort Inc in Mankato area below. To a system that will work best for your needs, call us at 507-307-4818 or make an appointment online. SLO185V Oil FurnaceIt’s nice to be surrounded by warmth when the temperature outside is not exactly cozy. The SLO185V includes a Beckett burner, which produces extremely efficient fuel economy. The burner and variable speed motor combine to help the SLO185V oil furnace produce an 85% AFUE rating*. Additionally, it’s met EPA guidelines to earn ENERGY STAR® qualification. If you’re looking for an innovative furnace that will provide 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? Northern Comfort Inc in Mankato area has you covered. Just give us a call at 507-307-4818 or use our online scheduler to book 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.