Ideal for homes in northern regions, Lennox® boilers integrate easily with existing radiator or under-floor heating systems for energy-efficient comfort, all winter long. With efficiency ratings of up to 95% AFUE, Lennox boilers can help you save hundreds of dollars each year in utility bills, compared to older and standard- efficiency boilers. Designed for easy installation, and available in many different sizes and fuel options, all Lennox boilers are built with high-quality components for long-lasting operation. Every unit is fire-tested and inspected prior to shipping to insure the highest possible degree of operating reliability. So you can take comfort knowing your Lennox boiler will deliver dependable performance, season after season, year after year.
Select a Model to Learn More:
GWM-IE
GWB9-IH
COWB3
GWB8-IE
GWB8-E
GSB8-E
GWM-IE High-Efficiency, Gas-Modulating Condensing Water Boiler
Design that’s highly innovative and efficient.
Steam heat from the efficiency experts
The GWM-IE boiler offers an efficiency of up to 95% AFUE, meaning it converts up to 95% of its fuel into useable heat. Fuel flexibility lets you use either natural or LP gas as a heat source.
Nothing’s more efficient
With an efficiency of up to 95% AFUE, the GWM-IE boiler can mean several hundred dollars per year in energy savings.This product has been designated as one of the Most Efficient ENERGY STAR certified products in 2018. Products that are recognized as the Most Efficient of ENERGY STAR in 2018 prevent greenhouse gas emissions by meeting rigorous energy efficiency performance levels set by the U.S. Environmental Protection Agency.
Smart design, smarter comfort
Inside the heat exchanger shell of the GWM-IE, specially designed helical tubes optimize condensing, allowing near-complete recovery of useable heat from the fuel source.
Technology with the power to save you money
The modulating capability of the GWM-IE allows the burner to fire at different levels of heat, down to 20% of its full capacity. So your comfort and energy use are always kept in perfect balance.
Quietly innovative
Continuous modulation allows the GWM-IE to maintain a precise temperature without constantly cycling between on and off. This not only reduces operating sound levels, but it also increases reliability.
GWB9-IH High-Efficiency, Gas-Fired Water Boiler
Engineered for lasting comfort and energy savings.
Smart with energy use
With an efficiency rating of up to 90% AFUE, the GWB9-IH Boiler allows you to stay comfortable during even the coldest weather, without worrying about energy costs.
Flexible installation means you have options
The GWB9-IH is designed to integrate easily into a traditional radiator system. Its lightweight and compact design allows flexible installation inside your home. Fuel flexibility lets you use either natural or LP gas as a heat source.
Tested and proven for dependable performance
Every unit is fire-tested and inspected prior to shipping to ensure the highest possible degree of operating reliability. So you can take comfort knowing the boiler will deliver dependable performance, season after season.
Comforting warmth, right when you want it
The cast-aluminum heat exchanger in the GWB9-IH transfers heat three times faster than conventional cast-iron heat exchangers. So you enjoy rapid warmth when you need it.
COWB3 Oil-Fired Water Boiler
Efficient, quiet warmth you can count on.
Efficiency that’s always a warm welcome
The COWB3 offers an efficiency of up to 85.2% AFUE, meaning it can deliver significant energy savings, compared to an older boiler. That means you don’t have to worry about high heating bills, no matter how cold the winter gets.
Hot water at virtually no extra cost
By installing an optional tankless coil, you can enjoy hot water for regular use in your home during winter months, without spending extra money on energy.
Reliable, tested and ready to work for you
The COWB3’s cast-iron heat exchanger offers long life and dependable operation. It also features a Beckett® burner that sets the standard for reliable, fuel-efficient heating.
Made with innovation throughout
The COWB3’s sealed combustion design provides quiet, safe, draft-free heating. It also integrates easily into your home’s existing radiator system for continuous comfort all winter long.
GWB8-IE Gas-Fired Water Boiler
A reliable way to stay warm and save energy.
Reliable, efficient operation in colder climates
The GWB8-IE offers an efficiency of up to 84.4% AFUE, meaning it can deliver significant energy savings compared to an older boiler. So even if winter brings its worst, you’ll stay comfortable without worrying about energy use.
Made tough, to deliver reliable warmth
The GWB8-IE includes extra attention to durability, with features like a cast-iron heat exchanger and corrosion-resistant titanium burners. Thick fiberglass insulation adds to energy efficiency, while reducing on-off temperature cycling.
Integrates easily into your home
The GWB8-IE is available in 6 different sizes for installation nearly anywhere in your home. And if you have a traditional radiator system, the GWB8-IE will integrate perfectly to provide precise heating comfort all winter long.
A flexible fuel source means heat your way
Depending on where you live, different types of fuel can be more expensive than others. That’s why the GWB8-IE gives you a choice of heating with either natural or LP gas.
GWB8-E Gas-Fired Water Boiler
Reliable heating performance season after season.
Efficiency all winter long
The GWB8-E offers an efficiency of up to 83.9% AFUE, meaning it can deliver significant energy savings compared to an older boiler. That means you can enjoy a comfortably warm home all throughout the winter, without worrying about energy use.
Smart design means reliable operation
- An electronic ignition allows the GWB8-E to turn on only when heat is needed.
- An automatic vent damper closes when the GWB8-E shuts off, preventing wasted heat.
- Layers of thick fiberglass insulation minimize heat loss and on-off cycling.
- Factory-installed switch protects against potentially dangerous low-water conditions.
Flexibility is a standard feature
To make it a perfect fit anywhere in your home, the GWB8-E is available in 9 different sizes. It also integrates seamlessly into your home’s existing radiator system, and can use either natural or LP gas.
Built to perform, and built to last
The heat exchanger at the heart of the GWB8-E is also designed for lasting durability, over a range of water flow rates. Burners are made of stainless steel for greater resistance to corrosion and oxidation.
GSB8-E Gas-Fired Water Boiler
Solid value and superb heating.
Worry-free performance
The GSB8-E offers an efficiency of up to 82.7% AFUE, meaning it can deliver significant energy savings, compared to an older boiler. That means you can relax comfortably about your energy use.
Efficient in every possible way
- An electronic ignition allows the GSB8-E to turn on only when heat is needed.
- An automatic vent damper closes when the GSB8-E shuts off, preventing wasted heat.
- Layers of thick fiberglass insulation minimize heat loss and on-off cycling.
Durable, dependable comfort
Long life and reliable operation are part of the GSB8-E’s design. That’s why it uses a cast-iron heat exchanger, titanium burners and an automatic low-water cutoff switch.
Versatility that’s always a perfect fit
The GSB8-E works with your home’s existing radiator or under-floor heating system, and is available in 7 different sizes for a perfect fit nearly anywhere in your home.
Choose your fuel source
The GSB8-E can use either LP gas or natural gas safely and efficiently. So you can choose whichever fuel is most cost-effective in your area.
