Gas-Fired Water Boilers Provide Years of Efficient Heat.

If you’re looking for cozy, even heat from an energy-efficient source, Thornberry Bros Inc in Winchester would like to find a gas-fired water boiler to meet your needs. With many ENERGY STAR® qualified options, we’re confident we have the Lennox® gas-fired water boiler that will meet your needs.

Look at the many features of our high-efficiency boilers.

GWM-IE Boiler

With a 95% AFUE rating,* The GVM-IE boiler is ENERGY STAR® qualified and up to 40% more efficient than conventional boilers. It features an electronic ignition control, which matches power to the burner to your household’s usage to help ensure it gets you the most fuel savings possible while helping your home stay comfortable.

  • Reliable, self-cleaning, stainless steel heat exchanger converts waste into usable heat
  • Minimized noise from sealed combustion
  • Modulating power aligns with your comfort needs by allowing the burner to fire at as low as 20% of its capacity
  • Stainless steel mesh burner resists corrosion and oxidation
  • CPVC flue condensate collector is corrosion-resistant and makes unnecessary 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

Painless to integrate with an existing, traditional radiator system, the GWB9-IH boiler is ENERGY STAR qualified. Even better, it boasts an AFUE rating of 90%.* It also carries heat as much as three times more quickly than a traditional cast-iron exchanger, thanks to its cast-aluminum heat exchanger.

  • Durable, heavy-gauge steel cabinet with baked-on paint finish
  • [Compact|Condensed|Small]38] design for installation flexibility
  • Sealed combustion minimizes noise
  • Electronic ignition monitors water temperature and lights the burner only when needed
  • Burns natural gas or can be converted 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

So much more efficient than an older boiler, the GWB8-IE boiler carries an 84.4% efficiency rating.* What makes it even better is its ability to work with traditional radiator systems.

  • Electronic ignition controls water temperature and ignites the burner only when needed
  • Thick fiberglass insulation significantly 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 can convert 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 will last year after year because it’s made from quality materials, including a long-lasting cast-iron heat exchanger and durable stainless steel burners.

  • Electronic ignition monitors water temperature and ignites the burner only when needed
  • Thick fiberglass insulation significantly reduces off-cycle heat and energy loss
  • Compatible with traditional radiator systems
  • Offered in nine different sizes for installation anywhere in your home
  • 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-E Boiler
Efficiency Rating (AFUE): up to 83.9

Our team at Thornberry Bros Inc in Winchester is ready to help you find the right gas fired water boiler for you, or help you maintain your existing boiler. Schedule your appointment online, or by calling us at 859-745-1564.