The COWB3 Boiler: Efficient Performance for Years You can’t predict winter weather, so why risk your home’s warmth? Be ready for the worst – and cozy throughout the season – with a Lennox® COWB3 boiler. This standard-efficiency heating system includes a Beckett® oil burner, the product that set a benchmark for fuel-efficient heating. The COWB3 includes a domestic hot water coil that also increases energy efficiency. Winter temperatures are one thing, but it’s the wind that really chills our bones. That’s on reason why we love the COWB3 system’s sealed-combustion style. Not only is your heating quiet, it’s also draft-free. What makes the COWB3 even better is its effortless integration with classic radiator systems. When you buy a COWB3 boiler through your Stevenson Service Experts Heating & Air Conditioning in Dayton, you’ll get reliability, durability and expert furnace installation service. Ready to see what a new heating system can do for you? The COWB3 boiler is available in three models so you can select the best equipment for your home. Schedule your free appointment with Stevenson Service Experts in Dayton online or call 937-503-7896 to get started.