Giant Water Heaters Review 2026
Best Canadian water heater
UEF Range
0.65–0.95
Types
3
Price Range
$$
Tank Warranty
8 years
Origin
Canada
2026 Incentive Check
Federal 25C ended after 2025. Current utility or manufacturer eligibility for a Giant heat pump water heater must be confirmed for the exact model and project.
Verify in Writing
Is Giant water heater any good?
Yes — Giant water heaters are a solid mid-range option. Our editorial score is 4.0/5 based on published efficiency, climate fit, warranty, features, and price positioning. Giant is associated with Giant Factories; confirm the exact model platform, parts path, and coverage rather than assuming they are shared. For a Long Island home, compare the exact matched system and written installation scope because design and commissioning can matter as much as the badge on the equipment.
Our Review Process
Ratings are editorial comparison scores—not customer reviews, installation counts, or manufacturer endorsements.
Giant Water Heater Planning for Nassau County & Covered Western Suffolk Areas
A useful Giant comparison starts with the exact indoor and outdoor model pairing—not the brand name alone. Home+ Air & Heat can review Giant water heater 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.
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
NATE-Certified HVAC Technician
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.
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
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
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.
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. Federal 25C ended after 2025; current heat pump water-heater incentives vary by model and program.
Giant Brand History
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
| Metric | Giant | Eemax | Marathon (Rheem) |
|---|---|---|---|
| Rating | 4/5 | 4/5 | 4.2/5 |
| Price (Installed) | $800–$3,500 | $300–$2,000 | $1,500–$3,000 |
| UEF (Max) | 0.95 | 0.99 | 0.95 |
| Tank Warranty | 8 years | Varies | Lifetime |
| Tier | mid-range | mid-range | premium |
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 reach UEF ratings up to 0.95. Federal 25C ended after 2025; verify current utility or manufacturer eligibility in writing.
Giant FAQs
Ready for a Giant Water Heater?
Get a free, no-pressure quote from our certified technicians who install Giant water heaters regularly.
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The brand matters less than the installer
A great water heater installer on Long Island will outperform a premium unit installed poorly. Use the verification checklist and three-estimate worksheet before you sign anything.
Open the contractor comparison guideGiant Heater Types
🔥 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
Writer
Blake Ruwali
NATE-Certified Reviewer
Updated:
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