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

With a reliable Lennox® oil-fired water boiler from Mr. Air Repair in Shelby Township , you’ll stay warm and snug—even on winter’s harshest days. Also, when you add an optional tankless coil, your high-efficiency boiler can also make hot water for all your household needs, at virtually no cost during the winter months.

Read more about the COWB3 boiler.

COWB3 Boiler

You will enjoy years of ultraquiet performance from the COWB3 boiler. It features the Beckett® oil burner, which sets the bar for predictable fuel-efficient heating.

  • 85.2% AFUE*
  • Optional, domestic tankless hot water coil heats 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 simple 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 professionals at Mr. Air Repair are here for you to take care of all your boiler needs, whether you need a new boiler or boiler maintenance. Call our Shelby Township location at 586-262-4258 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.