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Furnaces Lennox SL297NV


 Lennox Furnaces SL297NV /Install and Repair and Services Romaheating





First-in-class, lowest emission furnace on the market*

Price Guide$$$
Efficiency Rating (AFUE)up to 97.5
Energy Star®ENERGY STAR logo ENERGY STAR® Qualified

Lifetime limited warranty on the heat exchanger and a 10-year limited warranty on all remaining covered components.

Furnaces Lennox SL297NV

Furnaces Lennox SL297NV



All Around Comfort

The SL297NV ultra-low NOx gas furnace with our revolutionary design provides reliable comfort, while producing 65% lower NOx emissions than standard low NOx furnaces. So, while you’re staying cozy and warm, you’re also helping to protect the environment.

Furnaces Lennox SL297NV

Furnaces Lennox SL297NV

Energy efficiency that adapts to your needs

The variable-speed motor maintains a consistent temperature in your home using as little fuel as possible. This helps you stay comfortable and reduces your utility costs.

iComfort® S30 ultra smart thermostat compatibility adjusts your heating for energy savings based on your family’s routine.

An energy rating of up to 97.5% AFUE means the SL297NV can potentially save you hundreds of dollars per year, compared to an older furnace.

Consistent Temperatures

A variable-speed blower motor allows for constant and efficient adjustments of air flow speed and gently disperses even heat throughout your home. It also prevents loud blasts of air that can occur when a single-speed system starts up, providing quiet operation for enhanced comfort.

Furnaces Lennox SL297NV

Furnaces Lennox SL297NV

Recognized for supreme efficiency

The supreme efficiency of the SL297NV can save you hundreds of dollars in utility costs every year without sacrificing your comfort. This product has been designated as one of the Most Efficient ENERGY STAR certified products in 2019. Products that are recognized as the Most Efficient of ENERGY STAR in 2019 prevent greenhouse gas emissions by meeting rigorous energy efficiency performance levels set by the U.S. Environmental Protection Agency.

Peace of Mind

The SL297NV has undergone rigorous testing in our research lab to ensure the highest level of reliability. So, you can relax and enjoy the warmth and trouble-free operation.


Furnaces Lennox SL297NV


Furnaces Lennox SL297NV

Furnaces Lennox SL297NV

Furnaces Lennox SL297NV

Furnaces Lennox SL297NV

SL297NV Variable-Speed, Ultra-Low Emissions Gas Furnace

Energy EfficiencyUp to 97.5%
ENERGY STAR® Certified
Stages of HeatingTwo-Stage
Quiet OperationSilentComfort™ Technology and Sound Absorbing Insulation
MotorVariable Speed
Enhanced Humidity Control
Blower CompartmentInsulated
Air Filter and Humidifier Compatible
Ultra-Low Continuous Fan
Dual-Fuel CapableYes
IgnitionSureLight® Silicon Nitride Ignitor
Parts Warranty10-Year Limited Warranty on covered components
Heat Exchanger WarrantyLimited Lifetime Warranty
Tax Credit Eligible








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