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

With a dependable Lennox® oil-fired water boiler from PWA Heating & Cooling Inc in Plainfield, you’ll stay warm and snug—even on winter’s harshest days. And, by adding an optional tankless coil, your high-efficiency boiler can also provide you with hot water for all your household needs, for only a small cost during the winter months.

Read more about the COWB3 boiler.

COWB3 Boiler

Expect years of quiet performance from the COWB3 boiler. It features the Beckett® oil burner, which is the standard for reliable 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
  • Works with traditional radiator systems
  • Cast-iron heat exchanger for lasting performance
  • 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 PWA Heating & Cooling Inc are here for you to assist with all your boiler needs, whether you want a new boiler or boiler maintenance. Call our Plainfield location at 815-768-6656 today, or set up 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.