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.

Here are some of the top features of the COWB3:

  • BeckettĀ® oil burner sets the standard for reliable, fuel-efficient heating.
  • Cast iron heat exchanger designed for long-lasting durability.
  • Easy integration with traditional radiator systems to provide precise heating comfort, regardless of outdoor temperatures.
  • Swing-out burner door provides complete, easy access for cleaning and maintenance.
  • Beckett® oil burner
  • Optional tankless coil
  • Sealed-combustion design
  • Easy integration, works with traditional radiator systems to provide precise heating comfort, regardless of outdoor temperatures
  • Cast iron heat exchanger
  • 20-year limited warranty on heat exchanger, 1-year limited warranty on remaining covered parts
  • Publications:

    https://resources.lennox.com:443/fileuploads/0ddece30-025b-4b7c-9223-3f0d028491eaLennox_COWB3_Boiler.pdf

    Certifications:

    AHRI Certified C

    ASME (H)

    CSA Approved (C)(US)

    Warranty:

  • 20-Year Limited Warranty on heat exchanger
  • 5-Year Limited Warranty on covered components
  • This product may be eligible for valuable 10-year Limited Extended Warranty coverage with product registration