The COWB3 Boiler: Efficient Performance for Years You can’t predict winter weather, so why risk your home’s warmth? Be prepared for the worst – and cozy throughout the season – with a Lennox® COWB3 boiler. This standard-efficiency heating system uses a Beckett® oil burner, the product that set a benchmark for fuel-efficient heating. Thanks to a domestic hot water coil that provides hot water at almost no extra cost, you’ll see greater energy efficiency. Winter temperatures are one thing, but it’s the wind that really chills our bones. That’s why we love the COWB3 system’s sealed-combustion construction. Not only is your heating quiet, it’s also draft-free. What makes this product even better is its simple integration with classic radiator systems. When you select a COWB3 boiler through your Gordon's Service Experts Heating & Air Conditioning in Oklahoma City, you’ll get reliability, durability and expert furnace installation service. Ready to see what a new boiler can do for you? The COWB3 boiler is available in three models so you can select the best one for your home. Schedule your free appointment with Gordon's Service Experts in Oklahoma City online or call 405-432-2197 to get started.