The COWB3 Boiler: Efficient Performance for Years You can’t predict winter weather, so why risk your family’s warmth? Be prepared for the worst – and cozy throughout the season – with a Lennox® COWB3 boiler. This standard-efficiency heating system features a Beckett® oil burner, the product that set the standard for fuel-efficient heating. A domestic hot water coil takes your energy efficiency further by providing hot water at virtually no additional cost. 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 construction. Plus, your heating is both quiet and draft-free. What makes this product even better is its simple integration with traditional radiator systems. When you purchase a COWB3 boiler through your McKinley Heating Service Experts Heating & Air Conditioning in Edmonton, you’ll get reliability, durability and expert furnace installation service. Ready to see what a a COWB3 boiler can do for you? The COWB3 boiler is available in three models so you can choose the best one for your home. Schedule your free appointment with McKinley Heating Service Experts in Edmonton online or call 780-800-7092 to get started.