Enjoy Cozy, Quiet, Efficient Heat for Years to Come with a Gas-Fired Boiler.

Gas-fired water boilers deliver comfortable, even heat almost silently. What’s better is their high-level energy efficiency. At Freed Heating & Air Conditioning in Moline, many of the Lennox® gas-fired water boilers we offer are ENERGY STAR® qualified.

Learn about the details of our high-efficiency boilers.

GWM-IE Boiler

This ENERGY STAR® qualified, gas-modulating condensing water boiler is 40% more efficient than conventional boilers. In fact, it boasts a 95% AFUE rating.* To maximize fuel savings, it features an electronic ignition control that turns on the burner to meet your household demand to ensure it uses only the energy it needs to keep you cozy.

  • Reliable, self-cleaning, stainless steel heat exchanger turns waste energy into usable heat
  • Sealed combustion keeps noise at a minimum
  • To meet your comfort needs, the modulating capacity allows the burner to fire as low as 20% of capacity
  • Stainless steel mesh burner combats corrosion and oxidation
  • CPVC flue condensate collector is corrosion-resistant and erases the use of metal in the venting area.
  • 15-year limited warranty on heat exchanger, 10-year limited warranty on remaining covered components
GWM-IE Boiler
Efficiency Rating (AFUE): up to 95
Energy Star badge

GWB9-IH Boiler

The GWB9-IH boiler effortlessly integrates with a traditional radiator system and is ENERGY STAR qualified with an AFUE rating of 90%.* Its cast-aluminum heat exchanger carries heat quickly—up to three times faster than a conventional cast-iron exchanger.

  • Dependable, heavy-gauge steel cabinet with baked-on paint finish
  • Small design for flexibility in installation
  • Sealed combustion minimizes noise
  • Electronic ignition monitors water temperature and lights the burner only when necessary
  • Burns natural gas or convertible to LP gas
  • 15-year limited warranty on heat exchanger, 10-year limited warranty on remaining covered components
GWB9-IH Boiler
Efficiency Rating (AFUE): up to 90
Energy Star badge

GWB8-IE Boiler

Far more efficient than an older boiler, the GWB8 boiler boasts an 84.4% efficiency rating*—it even works with traditional radiator systems.

  • Electronic ignition monitors water temperature and turns on the burner only when needed
  • Thick fiberglass insulation minimizes off-cycle heat and energy loss
  • Cast-iron heat exchanger and titanium burners constructed for years of reliability
  • Offered in six different sizes for ultimate installation flexibility
  • Burns natural gas or can be converted to LP gas
  • 20-year limited warranty on heat exchanger, 1-year limited warranty on remaining covered parts
GWB8-IE Boiler
Efficiency Rating (AFUE): up to 84.4

GWB8-E Boiler

This standard-efficiency boiler can perform for years to come with its long-lasting cast-iron heat exchanger and durable stainless steel burners.

  • Electronic ignition monitors water temperature and turns on the burner only when needed
  • Thick fiberglass insulation significantly reduces off-cycle heat and energy loss
  • Works with conventional radiator systems
  • Offered in nine different sizes for installation anywhere in your home
  • Burns natural gas or convertible to LP gas
  • 20-year limited warranty on heat exchanger, 1-year limited warranty on remaining covered parts
GWB8-E Boiler
Efficiency Rating (AFUE): up to 83.9

Call us at 309-762-3641 or schedule an appointment online so our team at Freed Heating & Air Conditioning in Moline can help you find the right boiler for you, or ensure your existing boiler is working as well as it should be.