Relax with Reliable Comfort Season After Season. With a reliable Lennox® oil-fired water boiler from Strine's Heating & A/C Inc in South Central PA, you’ll stay warm and snug—even on winter’s harshest days. And, when you add an optional tankless coil, your high-efficiency boiler can also heat water for all your household needs, for very little money during the winter months. See what the COWB3 boiler has to offer. COWB3 Boiler You wil enjoy years of ultraquiet heating from the COWB3 boiler. It is made with the Beckett® oil burner, which sets the standard for dependable fuel-efficient heating. 85.2% AFUE* Optional, domestic tankless hot water coil delivers hot water for very little cost throughout the wintertime Sealed combustion design keeps noise at an unnoticeable level 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 professionals at Strine's Heating & A/C Inc are always ready to help with all your boiler needs, whether you’re looking for a new boiler or boiler maintenance. Call our South Central PA location at 717-755-4127 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.