Relax with Reliable Comfort Season After Season. With a sturdy Lennox® oil-fired water boiler from Assured Appliance and Heating & Air in Genoa, you’ll stay cozy and warm—even on winter’s most bone-chilling days. Also, with the addition of an optional tankless coil, your high-efficiency boiler can also heat water for all your household needs, for only a small cost during the winter months. Read more about the COWB3 boiler. COWB3 BoilerYou will enjoy years of near-silent heating from the COWB3 boiler. It includes the Beckett® oil burner, which sets the bar for predictable fuel-efficient heating. 85.2% AFUE* Optional, domestic tankless hot water coil heats hot water for very little cost throughout the cold season Sealed combustion design keeps noise at a minimum Swing-out burner door for simple cleaning and maintenance Functions with traditional radiator systems Cast-iron heat exchanger for lasting durability 20-year limited warranty on heat exchanger, 1-year limited warranty on remaining covered parts Efficiency Rating (AFUE): up to 85.2 Product Brochure Contact Us to Learn More Our boiler professionals at Assured Appliance and Heating & Air are always ready to assist with all your boiler needs, whether you want a new boiler or boiler maintenance. Call our Genoa location at 847-306-8990 today, or schedule your appointment online. *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.