EL297E
Gas Furnaces
High-efficiency, two-stage, constant-torque gas furnace
ENERGY STAR® Qualified
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
Heating Savings
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.
Powerful energy savings.
Annual Fuel Utilization Efficiency, or AFUE, measures how efficiently your furnace uses fuel. An energy rating of up to 97% AFUE means this furnace can lower your energy bills by 20% compared to a standard furnace, while still keeping your home warm and quiet. It may even help you qualify for energy rebates.
Federal Tax Credit Eligible
This product is eligible for the Energy Efficient Home Improvement Credit (Internal Revenue Code Section 25C), a federal tax credit provided to homeowners who install high-efficiency equipment. You can potentially receive hundreds of dollars with tax credits. Consult your tax professional to confirm eligibility.
ENERGY STAR® Certified
ENERGY STAR® Certified
Heating, ventilation and air-conditioning (HVAC) equipment with the ENERGY STAR label meets or exceeds federal guidelines for energy-efficient performance. An ENERGY STAR-certified furnace can reduce heating costs by 15 percent.
Smarten up your system
This furnace is compatible with the Lennox E30 Smart Thermostat, giving you easier access, control, and comfort. And because the E30 works seamlessly with a range of smart home devices, you get the added convenience of perfect comfort being just a tap or voice command away.
Ratings & Reviews
See what other customers are saying about
EL297E Gas Furnace
5/5
5/5
WORKS WELL
May 09, 2026GREAT SO FAR PURCHASED A FEW MONTHS AGO SEEMS THE CONSUMPTION OF GAS IS DOWN
Yes, I recommend this product.
L5L3Z5
Age: Over 65`
Gender: Male
Reason for Replacement: Emergency
4/5
4/5
4/5
4/5
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Resources
Product Literature
Products that add to the performance of EL297E Gas Furnace
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- * Furnace model numbers designated with a ‘K’ (EL297EK) indicate the equipment contains an on board refrigerant detection system. Identical furnace model numbers without a ‘K’ (as shown above) indicate an identical product as to key aspects of the equipment, including rating, performance, and specifications, but specifically exclude an on board refrigerant detection system.
