Relax with Reliable Comfort Season After Season. Woody's Sudden Service Inc in Manassas Park knows the colder months seem to drag on for months, but we can help you stay snug and warm. Our reliable Lennox® oil-fired water boiler is just what you need. This trusty boiler will keep you and your family comfortable and can accommodate an attached tankless coil to produce hot water for your showers, laundry and other household uses for very little additional energy cost. The COWB3 boiler is an efficient option for your home comfort. COWB3 BoilerThe Beckett® oil burner sets the standard for reliable, fuel-efficient heating. That’s exactly why it’s used in the COWB3 boiler. Your family can plan on years of almost silent performance from this boiler. 85.2% AFUE* Optional, domestic tankless hot water coil provides hot water for almost no cost throughout the cold season Sealed combustion design keeps noise very low Swing-out burner door for simple cleaning and maintenance Works with traditional radiator systems Cast-iron heat exchanger for lasting performance 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 are happy to serve the Manassas Park area. If you’re looking for a new boiler or need maintenance on your current boiler, call us at 703-369-5528 today, or set up 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.