Gas-Fired Water Boilers Provide Years of Efficient Heat.

Gas-fired water boilers deliver comfortable, even heat almost silently. What’s better is their high-level energy efficiency. At J.L. Brady Company LLC in Moline, many of the Lennox® gas-fired water boilers we offer are ENERGY STAR® qualified.

Learn about the features of our high-efficiency boilers.

GWM-IE Boiler

Forty percent more efficient than conventional boilers, this gas-modulating condensing water boiler is ENERY STAR® qualified. Not surprisingly, it carries a 95% AFUE rating.* To maximize fuel savings, it uses an electronic ignition control that turns on the burner to meet your household demand to be sure it uses only the energy it needs to keep your family comfortable.

  • Reliable, self-cleaning, stainless steel heat exchanger changes 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 eliminates 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 integrates easily with a traditional radiator system and is ENERGY STAR qualified with an AFUE rating of 90%.* Its cast-aluminum heat exchanger moves heat quickly—as much as three times faster than a typical cast-iron exchanger.

  • Durable, heavy-gauge steel cabinet with baked-on paint finish
  • Small design for flexible installation options
  • Sealed combustion keeps noise at a minimum
  • Electronic ignition monitors water temperature and turns on the burner only when needed
  • Burns natural gas or can convert 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

With an 84.4% efficiency rating,* the GWB8-IE boiler is significantly more efficient than an older boiler—it even works with conventional radiator systems.

  • Electronic ignition controls water temperature and lights the burner only when needed
  • Thick fiberglass insulation greatly reduces off-cycle heat and energy loss
  • Cast-iron heat exchanger and titanium burners engineered for years of reliability
  • Offered in six different sizes for ultimate installation flexibility
  • Burns natural gas or convertible 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

Built with a long-lasting cast-iron heat exchanger and durable stainless steel burners, this standard-efficiency boiler can perform year after year.

  • Electronic ignition controls water temperature and lights the burner only when needed
  • Thick fiberglass insulation minimizes off-cycle heat and energy loss
  • Will work with conventional radiator systems
  • Comes 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

Reach us at 309-517-7511 or schedule an appointment online so our staff at J.L. Brady Company LLC in Moline can help you find the right boiler for you, or get your current boiler running as smoothly and efficiently as possible.