LENNOX Boilers

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

GWM-IE High-Efficiency, Gas-Modulating Condensing Water Boiler

Design that\’s highly innovative and efficient

• AFUE ratings: Up to 95% for gas water boilers and combi-boilers, 82.7% for gas steam boilers and 85.2% for oil water boilers
• Gas boilers available for water or steam
• Oil boilers available for water heat
• 15-Year Limited Warranty on heat exchanger
• Up to 10-Year Limited Warranty on covered components

GWB9-IH High-Efficiency, Gas-Fired Water Boiler

Engineered for lasting comfort and energy savings.

• AFUE ratings: Up to 95% for gas water boilers and combi-boilers, 82.7% for gas steam boilers and 85.2% for oil water boilers
• Gas boilers available for water or steam
• Oil boilers available for water heat
• 15-Year Limited Warranty on heat exchanger
• Up to 10-Year Limited Warranty on covered components

OWB6 Oil-Fired Water Boiler

Efficient, quiet warmth you can count on.

• AFUE ratings: Up to 95% for gas water boilers and combi-boilers, 82.7% for gas steam boilers and 85.2% for oil water boilers
• Gas boilers available for water or steam
• Oil boilers available for water heat
• 20-Year Limited Warranty on heat exchanger
• Up to 10-Year Limited Warranty on covered components

GWB8-IE Gas-Fired Water Boiler

A reliable way to stay warm and save energy.
• AFUE ratings: Up to 95% for gas water boilers and combi-boilers, 82.7% for gas steam boilers and 85.2% for oil water boilers
• Gas boilers available for water or steam
• Oil boilers available for water heat
• 20-Year Limited Warranty on heat exchanger 
• Up to 10-Year Limited Warranty on covered components

GWB8-E Gas-Fired Water Boiler

Reliable heating performance season after season.

• AFUE ratings: Up to 95% for gas water boilers and combi-boilers, 82.7% for gas steam boilers and 85.2% for oil water boilers
• Gas boilers available for water or steam
• Oil boilers available for water heat
• 20-Year Limited Warranty on heat exchanger 
• Up to 10-Year Limited Warranty on covered components

GSB8-E Gas-Fired Water Boiler

Solid value and superb heating.
• AFUE ratings: Up to 95% for gas water boilers and combi-boilers, 82.7% for gas steam boilers and 85.2% for oil water boilers
• Gas boilers available for water or steam
• Oil boilers available for water heat
• 12-Year Limited Warranty on heat exchanger
• Up to 10-Year Limited Warranty on covered components