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

With a reliable Lennox® oil-fired water boiler from Sig Cox Heating and Air Conditioning in Augusta, you’ll stay warm and toasty—even on winter’s most bitter days. And, with the addition of an optional tankless coil, your high-efficiency boiler can also provide you with hot water for all your household needs, for very little money during the winter months.

See what the COWB3 boiler has to offer.

COWB3 Boiler

Expect years of quiet heating from the COWB3 boiler. It includes the Beckett® oil burner, which sets the standard for predictable fuel-efficient heating.

  • 85.2% AFUE*
  • Optional, domestic tankless hot water coil delivers hot water for a very small cost throughout the cold season
  • Sealed combustion design keeps noise at an unnoticeable level
  • Swing-out burner door for easy cleaning and maintenance
  • Compatible 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 Sig Cox Heating and Air Conditioning are always ready to assist with all your boiler needs, whether you want a new boiler or boiler maintenance. Call our Augusta location at 706-722-5304 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.