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    Flagship Model

    Lennox SL297NV Variable-Capacity Gas Furnace

    Model Number: SL297NV

    The Lennox SL297NV features 97% AFUE efficiency with variable-capacity modulation for the ultimate in comfort and efficiency, operating as quietly as 37 decibels.

    97% AFUE
    Modulating
    37 dB

    Technical Specifications

    Efficiency (AFUE)97%
    Heating StagesModulating
    BTU Output Range40k - 110k BTU
    Blower MotorVariable-Speed ECM
    Sound Rating37 dB
    Smart ThermostatStandard
    Fuel TypeNatural Gas
    Installed Price$6,500 - $9,000

    *Prices include equipment, installation, and standard warranty. Actual cost may vary.

    Estimated Annual Savings

    Compared to an 80% efficient furnace

    $210

    per year

    $3150

    over 15 years

    Calculate for Your Home

    Ideal For

    Luxury homeowners wanting whisper-quiet operation

    Expert Review: Lennox SL297NV Variable-Capacity Gas Furnace

    The Lennox SL297NV delivers 97% AFUE efficiency with variable-capacity modulation, operating as quietly as 37 decibels thanks to SilentComfort technology. This premium model provides near-flagship performance at a more accessible price point.

    For Nassau County homes in established neighborhoods like Jericho and Woodbury, the SL297NV's exceptional quiet operation makes it ideal for installations near bedrooms or home offices. The variable-capacity system adjusts heating output continuously for minimal temperature fluctuation.

    At 97% AFUE, this unit qualifies for substantial PSEG Long Island rebates and potential federal tax credits. Parts availability through Lennox Premier Dealers ensures proper service support.

    The communicating capability integrates seamlessly with Lennox iComfort thermostats for smart home connectivity and remote diagnostics. The 10-year parts warranty covers all major components.

    Best for: Homeowners seeking premium Lennox quality and near-top efficiency who want significant savings over the flagship SLP99V while retaining advanced modulating technology.

    Key Features & Technology

    97% AFUE efficiency

    Variable-capacity modulation

    SilentComfort technology (37dB)

    iComfort S30 compatible

    Carbon monoxide detector ready

    Advantages

    • Exceptionally quiet operation
    • Precise temperature control
    • Premium build quality
    • Smart home integration

    Considerations

    • Premium pricing
    • Requires Lennox dealer
    • Higher maintenance costs

    Warranty & Protection

    Parts Warranty

    10 years

    Heat Exchanger

    Lifetime

    Our Guarantee

    100% Satisfaction

    All warranties require product registration within 60 days of installation. Our team handles registration for you as part of our comprehensive installation service.

    Professional Installation

    What is Included

    • Complete furnace unit and materials
    • Professional NATE-certified installation
    • Permits and inspections
    • Old furnace removal and disposal
    • System testing and calibration
    • Warranty registration

    Installation Timeline

    1

    Free Consultation

    Same-day or next-day

    2

    Installation Day

    Typically 4-8 hours

    3

    Final Inspection

    Ensure perfect operation

    Frequently Asked Questions

    About Lennox

    Lennox logo

    Lennox

    Ranked #2 Overall

    Best Efficiency

    AFUE Range80-99%
    Founded1895
    View All Lennox Models

    Get Your Free Quote

    NATE-certified technicians serving Nassau County with expert Lennox SL297NV Variable-Capacity Gas Furnace installation.

    Get Free Quote(516) 345-3911

    Available 24/7 for emergencies

    Why Homets Air & Heat?

    • NATE-certified technicians
    • Same-day consultations available
    • Financing options available
    • 100% satisfaction guarantee
    • Local Nassau County company

    Ready to Install Your Lennox SL297NV Variable-Capacity Gas Furnace?

    Get a free, no-obligation quote from our NATE-certified technicians. We serve all of Nassau County with expert furnace installation and a 100% satisfaction guarantee.

    Get Free QuoteCompare More Models
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