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

Gas-fired water boilers offer comfortable, even heat almost silently. What’s more is their exceptional energy efficiency. At Red Dog Cooling, Heating, & Plumbing in Selbyville, several of the Lennox® gas-fired water boilers we sell are ENERGY STAR® qualified.

Read more about the benefits 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. In fact, it carries a 95% AFUE rating.* To boost fuel savings, it features an electronic ignition control that turns on the burner to coordinate with your household demand to ensure it uses only the energy it needs to keep your family cozy.

  • Strong, self-cleaning, stainless steel heat exchanger converts waste energy into usable heat
  • Sealed combustion reduces noise
  • Modulating capability perfectly meets your comfort needs by allowing the burner to fire at as low as 20% of its 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 effortlessly integrates with a traditional radiator system and is ENERGY STAR qualified with an AFUE rating of 90%.* Its cast-aluminum heat exchanger moves heat quickly—potentially three times faster than a traditional 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 oversees water temperature and turns on the burner only when necessary
  • 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

Far more efficient than an older boiler, the GWB8 boiler boasts an 84.4% efficiency rating*—it even works with older 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 engineered for years of durability
  • 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

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
  • Compatible with traditional 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

Reach us at 302-436-2922 or schedule an appointment online so our staff at Red Dog Cooling, Heating, & Plumbing in Selbyville can help you find the right boiler for you, or fix your boiler so it is running as smoothly and efficiently as possible.