Hayward 400K BTU Pool Heater
✓ Hayward Pool Products Authorized Dealer
✓ Includes Manufacturer Warranty
✓ Installation Available Upon Request
✓ 30-Day Return Policy Guarantee
The Hayward Pool Heater H400 is the Last Pool Heater You'll Ever Need to Buy
Don't settle for a lukewarm pool experience. The H-Series sets a new standard in the industry, offering unparalleled performance, efficiency, and durability. Perfect for rapidly heating spas and pools of all sizes, even larger than 40K gallons (view our sizing chart in the photos to precisely measure your pool).
The Cupro Nickel Advantage of the Hayward H Series Natural Gas Heater 400,000 BTU
At the core of the Hayward H Series is its state-of-the-art cupro nickel heat exchanger. Unlike other manufacturers who charge a premium for this superior technology, Hayward includes it as a standard feature.
This copper-nickel alloy is the secret behind the heater's exceptional longevity and resistance to corrosion. Here's why cupro nickel makes all the difference:
- Unmatched Durability: Say goodbye to premature failures caused by unbalanced water chemistry. The cupro nickel heat exchanger stands strong against erosion and corrosion, ensuring your heater keeps performing season after season.
- Superior Salt Water Compatibility: For those with salt water pools, the H Series is your ideal companion. Its excellent resistance to salt water corrosion means you can enjoy the benefits of salt water without compromising your heater's lifespan.
- Efficient Heat Transfer: The unique properties of cupro nickel allow for optimal heat transfer, meaning your pool heats up faster and more efficiently than ever before.
How the Hayward Pool Heater H400FDN is Engineered for Peak Performance
- Patented "Totally Managed" Water Flow: Ensures uniform water velocity through all tubes, maximizing heating efficiency and minimizing energy waste.
- Exclusive Header By-Pass Technology: Reduces pump runtime by up to 18%, providing substantial energy savings without sacrificing performance.
- Commercial-Grade Low NOx Emissions: Meets the strictest environmental standards without compromising the robust heating capabilities you demand.
Minimal Maintenance, Maximum Performance with the Hayward H-Series H400 Pool Heater
Understanding that time is valuable, the H400 is designed for straightforward installation and service:
- Universal Junction Boxes: Located on both left and right sides, these make electrical and automation installation a breeze.
- 2" x 2 1/2" CPVC Union Plumbing Connections: Adapt easily to larger plumbing for greater efficiencies, with a common union for hassle-free installation and service.
- Front-Access Service Design: All maintenance and service can be performed from the front, saving time and effort.
- Intuitive Control Panel: With its protective cover, the control panel is always easy to read and operate, even in bright sunlight or low light conditions.
With the Hayward H400 Natural Gas Pool Heater, Peace of Mind is Included
When you choose the Hayward H Series, you're not just getting a heater; you're investing in peace of mind. Our commitment to quality means you can trust your pool to stay at the perfect temperature, no matter the season or conditions.
Hayward 400K BTU Pool Heater Specs
Hayward H400 Manual Downloads
Hayward H400 Parts Diagram
Hayward H400 Troubleshooting
Some common Hayward H400FDN error codes, including Hayward H400 AO Code, Hayward H400 LO Code, and Hayward H400 SF400 Code, are linked here.
