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    Lochinvar Knight WHN

    Model Number: WHN

    Commercial-grade condensing boiler bringing industrial reliability to luxury homes.

    96% AFUE
    Condensing Boiler
    55k - 399k BTU

    Technical Specifications

    Efficiency (AFUE)96%
    Boiler Typecondensing
    BTU Output Range55k - 399k BTU
    PSEG Rebate EligibleYes ($500-$1,000)
    Fuel TypeNatural Gas
    Installed Price$7,000 - $13,000

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

    Estimated Annual Savings

    Compared to an 80% efficient boiler

    $233

    per year

    $4660

    over 20 years

    Get Your Custom Quote

    Ideal For

    Large estates in Old Westbury and Brookville over 5,000 sq ft

    Expert Review: Lochinvar Knight WHN

    The Lochinvar Knight WHN brings commercial-grade performance to luxury Long Island residences. With 96% AFUE efficiency and output up to 399,000 BTU, this fire-tube condensing boiler is designed for estates exceeding 5,000 square feet in Old Westbury, Brookville, and Lattingtown. The SMART SYSTEM Plus controls provide the most sophisticated diagnostics in the industry.

    Made in Tennessee, the Knight represents American manufacturing at its finest. The 10:1 turndown ratio ensures efficient operation even at partial loads—critical for maintaining comfort in large homes with multiple zones.

    Commercial heritage shows in every detail—from the stainless steel fire-tube heat exchanger to the comprehensive diagnostic capabilities. Service technicians appreciate the clear error codes and accessible components.

    The 15-year heat exchanger warranty provides exceptional long-term coverage for the premium investment.

    Our recommendation: The Knight WHN is the ultimate choice for estate homes where budget is secondary to performance. The commercial-grade construction and advanced controls justify the premium pricing for homeowners who demand the best.

    Key Features & Technology

    Fire-tube heat exchanger

    SMART SYSTEM Plus controls

    10:1 turndown ratio

    Stainless steel construction

    Made in Tennessee USA

    Advantages

    • Commercial-grade residential performance
    • Best controls in the industry
    • Perfect for large estates
    • Excellent diagnostics

    Considerations

    • Premium pricing
    • Overkill for smaller homes
    • Limited local distributor presence

    Warranty & Protection

    Parts Warranty

    5 years

    Heat Exchanger

    15 years

    Our Guarantee

    100% Satisfaction

    All Lochinvar boiler installations by Homets Air & Heat include our 1-year workmanship warranty, covering labor and any installation-related issues.

    Frequently Asked Questions

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    Get a free, no-obligation quote for Lochinvar Knight WHN installation in Nassau County.

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