Reliability and Comfort Every Cold Season Can Be Yours with an Oil-Fired Water Boiler. C-N-O Comfort Zone in Saint Peters knows the cold seasons seem to be endless, but we can help you stay snug and warm. Our sturdy Lennox® oil-fired water boiler is just what you need. It will keep you and your family cozy and can be equipped with an attached tankless coil to provide hot water for your showers, laundry and other household requirements for not much additional energy cost. Consider the COWB3 boiler as an efficient option for your home comfort. COWB3 BoilerThe Beckett® oil burner sets the example for reliable, fuel-efficient heating. That’s the reason 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 very little cost throughout the cold season Sealed combustion design keeps noise at a minimum Swing-out burner door for painless 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 pros are happy to serve the Saint Peters area. If you’re looking for a new boiler or need maintenance on your current boiler, call us at 636-578-1777 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.