Relax with Reliable Comfort Season After Season.

Arrings A/C & Heating in Humble knows the colder months seem to drag on for months, but we can help you stay comfy and warm. Our sturdy Lennox® oil-fired water boiler can help. This trusty boiler will keep your home comfortable and even has the option of an attached tankless coil to provide hot water for your showers, laundry and other household uses for not much 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 the reason why it’s used in the COWB3 boiler. You can plan on years of almost silent 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 an unnoticeable level
  • Swing-out burner door for easy 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 experts are always ready to serve the Humble area. If you’re looking for a new boiler or need maintenance on your existing boiler, call us at 281-713-8304 today, or make 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.