Lennox Boilers

Lennox
COWB3 Boiler

Built with the finest quality components, including a Beckett® oil burner and a durable cast iron heat exchanger, the COWB3 boiler delivers quiet, efficient performance year after year.

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Product Features

Energy Efficiency

- Beckett® oil burner—sets the standard for reliable, fuel-efficient heating.Domestic hot water coil—optional tankless coil provides hot water for virtually no cost throughout the colder months

Home Comfort

- Sealed-combustion design—provides quiet, healthy and draft-free heating.Easy integration—works with traditional radiator systems to provide precise heating comfort, regardless of outdoor temperatures

Reliable Performance

- Cast iron heat exchanger—designed for long-lasting durability