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

PWA Heating & Cooling Inc in Plainfield knows the colder months seem to go on forever, but we can help you stay cozy and warm. Our sturdy Lennox® oil-fired water boiler is the answer. This boiler will keep you and your family cozy and even has the option of an attached tankless coil to provide hot water for your showers, laundry and other household requirements for very little additional energy cost.

Consider the COWB3 boiler as an efficient option for your home comfort.

COWB3 Boiler

The Beckett® oil burner sets the standard for reliable, fuel-efficient heating. That’s the reason why it’s used in the COWB3 boiler. You and your family can plan on years of nearly noiseless performance from this boiler.

  • 85.2% AFUE*
  • Optional, domestic tankless hot water coil provides hot water for a very small cost throughout the winter months
  • Sealed combustion design keeps noise at a minimum
  • Swing-out burner door for painless cleaning and maintenance
  • Functions 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 are always ready to serve the Plainfield area. If you’re looking for a new boiler or need maintenance on your existing boiler, call us at 815-768-6656 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.