Reliability and Comfort Every Cold Season Can Be Yours with an Oil-Fired Water Boiler.

With a reliable Lennox® oil-fired water boiler from A2Z Air Inc in Boynton Beach, you’ll stay warm and snug—even on winter’s most bitter days. And, with the addition of an optional tankless coil, your high-efficiency boiler can also heat water for all your household needs, at virtually no cost during the winter months.

Read more about the COWB3 boiler.

COWB3 Boiler

You will enjoy years of ultraquiet performance from the COWB3 boiler. It includes the Beckett® oil burner, which is the standard for dependable fuel-efficient heating.

  • 85.2% AFUE*
  • Optional, domestic tankless hot water coil provides hot water for almost no cost throughout the cold season
  • Sealed combustion design keeps noise at an unnoticeable level
  • Swing-out burner door for painless cleaning and maintenance
  • Functions with traditional radiator systems
  • Cast-iron heat exchanger for lasting durability
  • 20-year limited warranty on heat exchanger, 1-year limited warranty on remaining covered parts
COWB3 Boiler
Efficiency Rating (AFUE): up to 85.2

Our boiler professionals at A2Z Air Inc are here for you to take care of all your boiler needs, whether you want a new boiler or boiler maintenance. Call our Boynton Beach location at 954-562-0009 today, or schedule your appointment online.


*Annual Fuel Utilization Efficiency (AFUE) measures how efficient the appliance is in converting its fuel’s energy into heat over the course of a year.