Reliability and Comfort Every Cold Season Can Be Yours with an Oil-Fired Water Boiler. Tri County Air Care LLC in Dallas knows the winters seem to go on forever, but we can help you stay comfy and warm. Our dependable Lennox® oil-fired water boiler is just what you need. This boiler will keep you cozy and can accommodate an attached tankless coil to heat water for your showers, laundry and other household uses for a low 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 absolutely why it’s used in the COWB3 boiler. You 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 winter months Sealed combustion design keeps noise very low Swing-out burner door for easy cleaning and maintenance Functions 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 pros are always ready to serve the Dallas area. If you’re looking for a new boiler or need maintenance on your existing boiler, call us at 469-617-3437 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.