The COWB3 Boiler: Efficient Performance for Years You never know just how harsh the winter will be, so why risk your family’s comfort? Be prepared for the worst – and cozy all winter – 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. 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 takes winter cold to the next level. That’s on reason why we love the COWB3 system’s sealed-combustion style. You’ll even get quiet and draft-free heating. What makes this product even better is its easy integration with classic radiator systems. When you purchase a COWB3 boiler through your Climate Control Service Experts Heating & Air Conditioning in Mobile, you’ll get reliability, durability and expert furnace installation service. Ready to see what a new heating system can do for you? This boiler is available in three models so you can pick the best one for your home. Schedule your free appointment with Climate Control Service Experts in Mobile online or call 251-202-7503 to get started.