Relax with Reliable Comfort Season After Season. With a dependable Lennox® oil-fired water boiler from Woody's Sudden Service Inc in Manassas Park, 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. Find out more about what the COWB3 boiler has to offer. COWB3 BoilerYou can expect years of near-silent heating from the COWB3 boiler. It features the Beckett® oil burner, which sets the standard for reliable fuel-efficient heating. 85.2% AFUE* Optional, domestic tankless hot water coil heats hot water for very little cost throughout the wintertime Sealed combustion design keeps noise at a minimum Swing-out burner door for simple cleaning and maintenance Compatible with traditional radiator systems Cast-iron heat exchanger for lasting reliability 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 experts at Woody's Sudden Service Inc are here for you to help with all your boiler needs, whether you need a new boiler or boiler maintenance. Call our Manassas Park location at 703-369-5528 today, or make 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.