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

With a sturdy Lennox® oil-fired water boiler from ACS Inc in Metro Atlanta, you’ll stay warm and toasty—even on winter’s most bitter days. Also, with the addition of an optional tankless coil, your high-efficiency boiler can also heat water for all your household needs, for only a small cost during the winter months.

Find out more about what the COWB3 boiler has to offer.

COWB3 Boiler

You can expect years of quiet operation from the COWB3 boiler. It includes the Beckett® oil burner, which sets the bar for dependable fuel-efficient heating.

  • 85.2% AFUE*
  • Optional, domestic tankless hot water coil heats hot water for a very small cost throughout the wintertime
  • Sealed combustion design keeps noise very low
  • Swing-out burner door for simple 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 pros at ACS Inc are always ready to assist with all your boiler needs, whether you need a new boiler or boiler maintenance. Call our Metro Atlanta location at 770-939-7500 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.