Relax with Reliable Comfort Season After Season. With a reliable Lennox® oil-fired water boiler from Schagrin Gas Company in Middletown, you’ll stay warm and toasty—even on winter’s most bitter days. Also, when you add 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 will enjoy years of ultraquiet operation from the COWB3 boiler. It includes 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 almost no cost throughout the cold season Sealed combustion design keeps noise at a minimum Swing-out burner door for painless 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 professionals at Schagrin Gas Company are always ready to help with all your boiler needs, whether you want a new boiler or boiler maintenance. Call our Middletown location at 302-658-2000 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.