(516) 259-1191 (516) 345-3911 (516) 548-0911
    home+ — Home+ Air and Heat
    24/7 Emergency(516) 259-1191
    ESEspañol
    ESEspañol
    Long Island, NY

    Live on Long Island? We install Giant water heaters.

    • Free in-home estimate
    • NATE-certified installers
    • Nassau & W. Suffolk
    (516) 345-3911
    Prefer to read first? See our water heaters installation page →
    Giant logo
    #18 Water Heater BrandMid-range

    Giant Water Heaters Review 2026

    Best Canadian water heater

    4/5• Expert Rating

    UEF Range

    0.65–0.95

    Types

    3

    $

    Price Range

    $$

    Tank Warranty

    8 years

    Origin

    Canada

    IRA Tax Credit

    Qualifying Giant heat pump water heaters with UEF ≥ 2.2 may be eligible for up to $2,000 in federal tax credits.

    Up to $2,000

    Best For:Best Canadian water heater
    Types:Tank, Tankless, Hybrid
    Warranty:8 years tank
    Official:Giant Website ↗
    Share

    Our Review Process

    Our reviews are fact-checked by NATE-certified HVAC professionals with 10+ years of field experience.

    Giant Aater heater Installation & Service Across Nassau County & Western Suffolk

    Home+ Air & Heat installs and services Giant water heater throughout Nassau County and Western Suffolk — from Garden City and Jericho to Massapequa and Huntington. We are a premium HVAC contractor: our pricing reflects white-glove installation standards, not a race to the bottom.

    Every Giant system we install is sized with a live Manual J load calculation, commissioned with digital airflow verification, and backed by a 1-year labor warranty. We do not compete on sticker price. We compete on installation quality, long-term reliability, and the peace of mind that your unit was put in by NATE-certified technicians who treat your home like their own.

    Nassau County & W. SuffolkNATE-Certified Technicians1-Year Labor Warranty

    Expert Review: Giant

    First-hand experience from our Nassau County water heater installation team.

    # Giant Water Heaters: An Expert Review by Homets Air & Heat

    As a family-owned HVAC company serving Jericho, Nassau County, Long Island, NY, Homets Air & Heat has extensive experience with a wide range of water heater brands. Today, we're diving into Giant water heaters, a brand that's steadily gaining traction in the North American market.

    Our Field Experience in Nassau County

    Our team has been installing Giant water heaters in Nassau County homes for several years now, and we've been consistently impressed with their performance. We've found them to be reliable and well-built, especially their tank models. Homeowners appreciate the solid construction and the peace of mind that comes with a good warranty. While not as widely recognized as some of the older, more established brands in the US, Giant has proven to be a dependable mid-range option for our customers.

    Handling Long Island's Unique Conditions

    Long Island's water, particularly in Nassau County, is known for its hardness. This can be a significant challenge for water heaters, as mineral buildup can reduce efficiency and shorten lifespan. Giant water heaters, with their robust tank construction, hold up well against these conditions. We've observed less internal corrosion and sediment accumulation compared to some other brands in the same tier. The coastal environment also brings its own set of challenges, including increased humidity and potential for external corrosion. Giant units, particularly their tank models, are built to last, and we haven't seen any premature failures due to our local climate.

    Best Use Cases

    Giant water heaters are an excellent fit for a variety of homes and budgets. Their mid-range pricing, typically between $800 and $3500 installed in Nassau County, makes them an attractive option for homeowners seeking a balance between quality and cost. For families of 2-4, a standard tank-type Giant water heater is usually sufficient. Larger families or homes with high hot water demands might consider their tankless or hybrid models for increased efficiency and continuous hot water. They are a great choice for suburban homes and even some smaller commercial applications where consistent performance is key.

    Comparison to Competitors

    When we compare Giant to other mid-tier brands, it often stands out for its strong North American manufacturing and good warranty coverage. While brands like Rheem or A.O. Smith have a larger market share and more extensive service networks in the US, Giant offers comparable quality at a competitive price. Their UEF range of 0.65-0.95 is on par with, and in some cases, exceeds, similar offerings from competitors. The main drawback remains their limited US availability and smaller service network, which can sometimes make sourcing parts (though rarely needed) a bit slower than for more ubiquitous brands.

    Specific Model Recommendations

    For most Nassau County homes, we recommend Giant's Espace Series of electric tank water heaters. These models offer excellent energy efficiency and are available in various capacities to suit different family sizes. For those looking for a more energy-efficient solution, the Giant EcoPeak hybrid water heater is a fantastic choice, combining the benefits of a heat pump with traditional electric heating. If space is a concern or continuous hot water is a priority, consider their Giant Tankless electric water heaters. Our team can help you select the precise model and sizing to optimize performance and energy savings for your specific home.

    Local Pricing Context for Nassau County

    In Nassau County, the installed price for a Giant water heater typically ranges from $800 to $3500. This price includes the unit itself, necessary plumbing and electrical work, and proper disposal of your old water heater. Factors influencing the final cost include the type of water heater (tank, tankless, or hybrid), its capacity, the complexity of the installation, and any required permits. Our team at Homets Air & Heat provides transparent, detailed quotes, ensuring you understand all aspects of the investment. We believe Giant offers excellent value within this price range, providing a durable and efficient solution for your home's hot water needs.

    Giant Water Heaters: FAQs by Homets Air & Heat

    Blake Ruwali

    Blake Ruwali

    NATE-Certified HVAC Technician

    Was this section helpful?

    Pros

    • Strong North American manufacturing
    • Good warranty coverage
    • Reliable tank construction
    • Growing US market

    Cons

    • Limited US availability
    • Less brand recognition
    • Smaller service network

    Giant Key Specifications

    UEF Range

    0.65–0.95

    Price (Installed)

    $800–$3,500

    Tank Warranty

    8 years

    Types Available

    3

    Giant Water Heater Models We Install

    Detailed specs and pricing for Giant models available for Nassau County installation.

    ★ Top Pick
    Tank
    Value

    Giant 50-Gallon Residential Gas Water Heater

    Installed Price

    $800–$1,300

    Reliable Canadian-made gas tank water heater at an affordable price.

    UEF

    0.63

    1st Hr Rating

    79 gal

    Capacity

    50 gal

    BTU

    40k

    Pros

    • Canadian-made quality
    • Good value for money
    • Reliable performance

    Cons

    • Limited US distribution
    • Basic feature set
    • Lower efficiency
    Tank: 6 yearsParts: 6 yearsBest for: Budget installations and rental propertiesView Details
    Tank
    Mid-range

    Giant Cascade 50-Gallon Power Vent Gas

    Installed Price

    $1,400–$2,100

    Higher-efficiency power vent gas tank with flexible venting options.

    UEF

    0.7

    1st Hr Rating

    86 gal

    Capacity

    50 gal

    BTU

    50k

    Pros

    • Power vent flexibility
    • Higher efficiency
    • Electronic ignition

    Cons

    • Higher cost than atmospheric
    • Requires electricity
    • Noisier operation
    Tank: 8 yearsParts: 8 yearsBest for: Homes needing flexible ventingView Details
    Was this section helpful?

    Giant Warranty Coverage

    Tank

    8 years

    Parts

    8 years

    Labor

    1 year

    Warranty terms require professional installation and product registration. We handle all warranty registration for our customers.

    Was this section helpful?

    Giant Cost & Pricing

    Price Range (Installed)

    $800–$3,500

    Price Tier

    $$

    Tier

    Mid-range

    Prices reflect typical Nassau County installations including labor, materials, and permits. Heat pump water heaters may qualify for up to $2,000 in federal tax credits.

    Was this section helpful?

    Giant Brand History

    1915
    Now

    Founded in 1915

    Giant has been manufacturing water heaters for over 111 years. Headquartered in Canada.

    Part of Giant Factories

    Giant Factories focuses on the Giant brand for residential water heaters.

    How Giant Compares

    MetricGiantEemaxMarathon (Rheem)
    Rating4/54/54.2/5
    Price (Installed)$800–$3,500$300–$2,000$1,500–$3,000
    UEF (Max)0.950.990.95
    Tank Warranty8 yearsVariesLifetime
    Tiermid-rangemid-rangepremium

    Who Should Choose Giant?

    Large Families

    Giant tank models deliver high first-hour ratings for back-to-back showers.

    Small Homes

    Compact Giant units save space — ideal for Nassau County Cape Cods and ranches.

    Energy Savings

    Giant heat pump models qualify for up to $2,000 in IRA tax credits with UEF up to 0.95.

    Giant FAQs

    Ready for a Giant Water Heater?

    Get a free, no-pressure quote from our certified technicians who install Giant water heaters regularly.

    Explore More HVAC Resources

    In-depth guides, brand comparisons, and local service pages to help you make the right decision.

    Get a Giant Quote

    4/5Expert Rating
    Price Range:$800–$3,500
    Tank Warranty:8 years
    Max UEF:0.95
    Types:3
    Licensed & Insured Installers

    Free estimates • Same-day service available

    Giant Heater Types

    Tank
    Tankless
    Hybrid

    🔥 Water Heater Buying Guide

    Tank vs tankless vs heat pump — find the right water heater for your Nassau County home.

    Read the Guide →

    About This Review

    Amy Milani

    Amy Milani

    Writer

    Blake Ruwali

    Blake Ruwali

    NATE-Certified Reviewer

    Updated:

    Previous

    #17 Eemax

    ← All Water Heater Brands

    Next

    #19 Marathon (Rheem)

    Use ← → arrow keys to navigate between brands