EL297EK
Gas Furnaces
High-efficiency, two-stage, constant-torque gas furnace compatible with 2025 Compliant Refrigerant
For eligible Elite series models, homeowners have the opportunity to obtain the default 5-year parts only extension (for a total of 10-years parts only coverage) or, in lieu of that option, they have the opportunity to receive 3 years of labor coverage and 2 years of parts coverage (for a total of 3 years labor coverage and 7 years parts coverage). Other terms, conditions, and exclusions apply. For more information, visit www.Lennox.com/WarrantyYourWay.
Features
Balanced comfort and efficiency
While most furnaces are single stage, meaning they're either on or off, this furnace can heat at two different speeds. Most of the time the unit will meet heating needs at its lower speed, resulting in balanced and consistent temperatures with lower energy use.
Constant torque, constant efficiency
The Power Saver™ constant-torque motor adjusts airspeed based on demand. This helps the furnace use less energy in both heating and cooling modes.
The perfect amount of quiet.
Made with a fully insulated cabinet, special sound-absorbing materials and sturdy burners to reduce noise, this furnace is designed to operate extremely quietly, so you can relax in peaceful warmth.
A refrigerant that’s better for the environment.
This product is compliant with 2025 EPA regulations for lower global warming potential (GWP) refrigerants. The Lennox choice of 2025 Compliant Refrigerant has a lower GWP than its predecessor and is formulated to provide excellent, reliable performance of your system for years to come.
Ratings & Reviews
See what other customers are saying about
EL297EK Gas Furnace
Top quality product
May 26, 2026Off to a great start with our new AC and furnace. Installation team was great. But that is why I once again bought Lenox. Also, New digital thermostat is easy to use.
Yes, I recommend this product.
Pittsburgh
Age: Over 65`
Gender: Male
Reason for Replacement: Planned


