The Most Efficient and Quietest Oil Furnaces Available: Dave Lennox Signature® Collection Dave Lennox Signature Collection oil furnaces are defined by their quiet and efficient operation. These benefits are made possible by the units’ variable speed motors, which operate at different speeds to better control air flow, limit sound levels and cut down energy costs. In addition, the sound – or lack thereof – on these oil furnaces is outstanding. SilentComfort™ technology enables heat to be produced and distributed without the loud noises typical in standard systems. You can learn more about each Dave Lennox Signature® Collection model below or call Breathe Healthier Air Inc in Stuart to speak with a staff member about the best furnace options for your home. Call us at 772-600-7151 or make an appointment online today. Did you know we do oil furnace repairs and maintenance in Stuart and the surrounding area? Call us at 772-600-7151 for more information 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.