Relax with Reliable Comfort Season After Season.

Farnell Heating & Air Conditioning Inc in Mobile knows the colder months seem to go on forever, but we can help you stay snug and warm. Our reliable Lennox® oil-fired water boiler can help. It will keep your home warm and even has the option of an attached tankless coil to heat water for your showers, laundry and other household requirements for a low additional energy cost.

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

COWB3 Boiler

The Beckett® oil burner sets the bar for reliable, fuel-efficient heating. That’s absolutely why it’s used in the COWB3 boiler. Your family can plan on years of virtually noiseless performance from this boiler.

  • 85.2% AFUE*
  • Optional, domestic tankless hot water coil provides hot water for very little cost throughout the winter months
  • Sealed combustion design keeps noise very low
  • Swing-out burner door for simple cleaning and maintenance
  • Works with traditional radiator systems
  • Cast-iron heat exchanger for lasting reliability
  • 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 are always ready to serve the Mobile area. If you’re looking for a new boiler or need maintenance on your current boiler, call us at 251-471-2674 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.