Long Island, NY

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    • Exact brand and model fit confirmed before proposal
    • Warranty and current incentive terms reviewed in writing
    • 5.0 Google rating · 93 reviews
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    Before buying or servicing a Triangle Tube boiler, confirm current parts and warranty support with the manufacturer or your supply house.

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    Triangle Tube Boiler Review

    Amy Milani
    Written byAmy Milani
    Blake Ruwali
    Reviewed byBlake Ruwali
    Updated

    September 27, 2026

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    Quick Facts

    Efficiency95-96% AFUE
    Price Range$5,000-$11,000
    Heat Exchanger10 years
    OriginBelgium/USA
    Founded1947
    Boiler Types:
    Hot Water
    Combi
    Condensing
    Price Range:$5,000-$11,000
    Efficiency:Up to 96% AFUE
    Warranty:10 years

    Triangle Tube specializes in hot water and condensing systems (no steam boilers available).

    Is Triangle Tube boiler any good?

    Before buying or servicing a Triangle Tube boiler, confirm current parts and warranty support with the manufacturer or your supply house.

    Our Review Process

    Ratings are editorial comparison scores—not customer reviews, installation counts, or manufacturer endorsements.

    Triangle Tube Boiler Planning for Nassau County & Covered Western Suffolk Areas

    A useful Triangle Tube comparison starts with the exact indoor and outdoor model pairing—not the brand name alone. Home+ Air & Heat can review Triangle Tube boiler options for homes in our covered Nassau County and western Suffolk service areas, then document whether the proposed equipment, capacity, electrical scope, and installation approach fit the project.

    Before work is authorized, ask for the design method, AHRI match where applicable, installer or dealer qualification required by the manufacturer, registration responsibility, parts coverage, labor coverage, exclusions, and current incentive assumptions in writing. Those details vary by model, project, contractor status, installation date, and current program rules.

    Nassau County & W. SuffolkBrand & Model Fit VerifiedScope & Coverage in Writing
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    About Triangle Tube Boilers

    Key facts about Triangle Tube boilers.

    Up to 96% AFUE

    The highest AFUE rating listed for Triangle Tube boilers.

    About Triangle Tube

    Triangle Tube pioneered the stainless steel fire-tube heat exchanger technology that revolutionized residential boiler efficiency. Our Trotta installation teams have trusted Triangle Tube for demanding Nassau County applications, particularly in homes requiring both heating and domestic hot water.

    The Prestige Excellence and Smart series achieve up to 96% AFUE efficiency with Triangle Tube's signature self-cleaning fire-tube design that minimizes scale buildup. The integrated indirect water heater options provide endless hot water—critical for larger Long Island families.

    For homes in coastal communities, Triangle Tube's stainless steel construction resists salt-air corrosion better than traditional cast iron alternatives. The compact footprint fits easily in tight basement spaces common in older Nassau County housing stock.

    Local parts availability through F.W. Webb in Hicksville and specialized SMART system training ensures our technicians deliver proper installations and service. Triangle Tube's 10-year heat exchanger warranty provides peace of mind.

    PSEG Long Island rebates apply to qualifying Triangle Tube installations, with potential savings of $500-$1,000 on high-efficiency models. The combination of efficiency, reliability, and integrated water heating makes Triangle Tube ideal for whole-home comfort.

    For homeowners seeking proven condensing boiler technology with excellent water heating capabilities, Triangle Tube delivers decades of reliable performance.

    — Blake Ruwali, Home+ Air & Heat

    Pros

    • Innovative fire-tube heat exchanger
    • Self-cleaning technology
    • Excellent integrated water heating
    • 96% AFUE efficiency
    • Stainless steel construction
    • 10-year heat exchanger warranty
    • Compact wall-mount design
    • Strong local parts availability

    Cons

    • Premium pricing
    • Requires trained technicians
    • Some models have complex controls
    • Water quality sensitivity
    • Higher upfront cost than cast iron

    Triangle Tube Boiler Models

    View All Models

    Triangle Tube boiler models with published AFUE, boiler type and typical installed price ranges.

    *Prices are estimates for Nassau County installations. Actual cost depends on home size, system complexity, and model selection.

    Triangle Tube Warranty Coverage

    Understanding what's covered and how to protect your investment.

    Parts Warranty

    5 years

    Covers major components like controls and pumps

    Heat Exchanger

    10 years

    The heart of your boiler—cast iron or stainless steel

    Labor Coverage

    1 year

    Manufacturer coverage for service calls

    Extended Options

    Available through dealer

    Additional protection beyond standard warranty

    Important Warranty Tips

    • •Confirm the registration deadline in the current warranty document for your exact model
    • •Annual professional maintenance is typically required to maintain warranty
    • •Keep all receipts and service records for warranty claims
    • •Home+ Air & Heat can register your warranty and maintain records for you

    Triangle Tube Boiler Costs in Nassau County

    Installed prices for Triangle Tube boilers range from $5,000 to $11,000 in Nassau County. Price varies by model efficiency, home size, and installation complexity.

    Economy
    95% AFUE

    $5,000 - $6,980

    Entry-level models with solid performance

    Mid-Range
    96% AFUE

    $6,980 - $8,960

    Best balance of features and value

    Premium
    96% AFUE

    $8,960 - $11,000

    Top-tier efficiency and features

    Additional Installation Costs

    Standard Installation

    New boiler, same location

    Included in price

    Steam-to-Hot Water Conversion

    Complete system change

    +$2,000-$4,000

    Chimney Liner

    Required for high-efficiency

    +$800-$1,500

    Permit & Inspection

    Nassau County requirements

    +$150-$300

    * Prices reflect typical installed costs in Nassau County as of September 2026. Actual costs may vary based on home size, system complexity, and local factors.

    5.0 / 5 · 93 Google reviews

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    Fully insured

    Installed Price Range:

    $5,000 – $11,000

    *Includes equipment, labor, and permits

    Long Island

    The brand matters less than the installer

    A great boiler installer on Long Island will outperform a premium unit installed poorly. Use the verification checklist and three-estimate worksheet before you sign anything.

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