The COWB3 Boiler: Efficient Performance for Years You never know just how harsh the winter will be, so why risk your home’s warmth? Be prepared for the worst – and cozy all season – with a Lennox® COWB3 boiler. This standard-efficiency heating system uses a Beckett® oil burner, the product that set the standard 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 maybe the biggest reason why we love the COWB3 system’s sealed-combustion style. Not only is your heating quiet, it’s also draft-free. What makes this product even better is its effortless integration with classic radiator systems. When you select a COWB3 boiler through your Roy Inch & Sons Service Experts Heating & Air Conditioning in London, you’ll get reliability, durability and expert furnace installation service. Ready to see what a new boiler can do for you? This boiler is available in three models so you can pick the best equipment for your home. Schedule your free appointment with Roy Inch & Sons Service Experts in London online or call 226-270-1164 to get started.