The COWB3 Boiler: Efficient Performance for Years You can’t predict winter weather, 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 features a Beckett® oil burner, the product that raised the bar 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 brings us over the edge. That’s maybe the biggest reason why we love the COWB3 system’s sealed-combustion style. Plus, your heating is both quiet and draft-free. What makes this product even better is its effortless integration with classic radiator systems. When you select a COWB3 boiler through your Parker Pearce Service Experts Heating & Air Conditioning in Gaithersburg, you’ll get reliability, durability and expert furnace installation service. Ready to see what a a COWB3 boiler can do for you? This boiler is available in three models so you can pick the best fit for your home. Schedule your free appointment with Parker Pearce Service Experts in Gaithersburg online or call 301-476-4577 to get started.