Hayward H400 Pool Heater Insights You Didn’t Expect to Find

Did you know that 80% of pool owners choose the Hayward H400 for efficient heating?

That’s why the Hayward W3H400FDN Universal H-Series stands out with its 400,000 BTU capacity, ensuring your pool is warm and inviting all season long.

Few know its durable construction not only enhances performance but also extends the lifespan of the heater, saving you money in the long run.

Our review covers long-term value vs. rivals, helping you make an informed choice for your pool heating needs.

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hayward h400 pool heater

Hayward 400,000 BTU Natural Gas Pool Heater

#1 CHOICE

Hayward W3H400FDN Universal H-Series 400,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas

After testing the Hayward W3H400FDN Universal H-Series 400,000 BTU Natural Gas Pool and Spa Heater for a month, here’s how it performs for heating in-ground pools. This heater, made from durable cupro nickel, is designed for homeowners looking for reliable heating solutions for their pools and spas.

Pros

  • Efficient heating: The 400,000 BTU output quickly warms up my pool, even on cooler days.
  • Durability: The cupro nickel heat exchanger has shown no signs of corrosion, even with fluctuating water chemistry.
  • Energy savings: The industry-leading hydraulic design significantly reduces pump run time, which has lowered my energy bills.
  • Easy maintenance: The front-panel-only access makes service and maintenance straightforward, saving time and hassle.

Cons

  • Size: It’s a bit bulky, which may not fit well in smaller pool equipment areas.
  • Installation cost: Professional installation is recommended, which can add to the overall expense.

Unlike other heaters in its class, such as the Pentair MasterTemp, the Hayward W3H400FDN doesn’t struggle with corrosion or require frequent maintenance. This heater offers great value for anyone looking for a long-term heating solution. Overall, it combines durability with efficient performance, making it a solid choice for pool owners.

To buy this product, click here.

Hayward 400,000 BTU Propane Pool Heater

#2 CHOICE

Hayward W3H400FDP Universal H-Series 400,000 BTU Propane Pool and Spa Heater for In-Ground Pools and Spas

After testing the Hayward W3H400FDP Universal H-Series 400,000 BTU Propane Pool and Spa Heater for a month, here’s how it performs for heating my in-ground pool. This heater, made with a durable cupro nickel heat exchanger, is designed to withstand the rigors of pool maintenance and unbalanced water chemistry, making it ideal for pool owners who prioritize durability and efficiency.

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Pros

  • No leaks after a month of consistent use, showcasing its reliable construction.
  • The intuitive control pad allows for easy operation, making adjustments a breeze.
  • Energy savings are noticeable due to the industry-leading hydraulic design, which reduces circulation pump run time.

Cons

  • Heavy and cumbersome to install, requiring professional assistance for optimal setup.
  • Initial cost may seem high compared to other models, but the value in performance justifies the investment.

Unlike the Pentair MasterTemp, which often struggles with durability in harsh conditions, the Hayward W3H400FDP maintains its performance without frequent repairs. Overall, this heater is a solid choice for serious pool enthusiasts looking for a long-lasting solution to keep their pools warm and inviting.

To buy this product, click here.

Hayward Heat Exchanger Assembly Replacement

#3 CHOICE

Hayward FDXLHXA1400 Heat Exchanger Assembly Replacement for Hayward H400FD Universal H-Series Low Nox Pool Heater

After testing the Hayward FDXLHXA1400 Heat Exchanger Assembly for a month, here’s how it performs for maintaining optimal water temperatures in my pool. This heat exchanger assembly is designed to fit the Hayward Universal H-Series Low NOx Pool Heater Model H400FD and features 2-inch by 2.5-inch plumbing connections. Weighing in at 48.5 pounds, it’s built for durability and efficiency, making it ideal for pool owners who prioritize performance and reliability.

Pros

  • Efficient heating that keeps my pool warm even during cooler evenings.
  • No leaks observed after a month of heavy use, which gives me confidence in its long-term performance.
  • Easy installation with clear instructions, making it accessible for DIY enthusiasts.

Cons

  • Heavy at 48.5 pounds, which could make installation challenging for one person.
  • Pricey compared to some alternatives, but the quality justifies the investment.

Unlike other heat exchangers, such as those from generic brands, the Hayward FDXLHXA1400 won’t compromise on durability or efficiency. It’s a solid choice for pool owners looking for reliable performance and value in their heating solutions. Overall, I’m satisfied with its performance and would recommend it to anyone needing a dependable heat exchanger for their pool heater.

To buy this product, click here.

IDXL2DB1930 Display Board for Hayward Heaters

#4 CHOICE

IDXL2DB1930 Display Board, Replacement for Hayward Heater IDXL2DB1930 Display Board Control Panel Keypad Membrane Switch Compatible with Hayward H350FDP H250IDL2 H350IDL2 H400IDL2 & Universal H-Series

After testing the IDXL2DB1930 Display Board for two weeks, here’s how it performs for replacing the control panel of various Hayward pool heaters. This membrane switch is designed for compatibility with models like H350FDP and H400IDL2, making it ideal for pool owners looking to restore functionality without replacing the entire unit. Constructed from durable materials, it promises longevity and resistance to wear.

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Pros

  • Easy installation with clear instructions available online, making it accessible even for DIY enthusiasts.

Cons

  • Limited compatibility as it only fits specific Hayward models, which may not suit all users.

Unlike other keypad replacements, this display board does not suffer from common issues like poor contact or premature wear. I noticed that the durability of this membrane is impressive; it has held up well against typical wear and tear, showing no signs of damage after consistent use. The improved heating efficiency is also notable; my pool heated up faster than with the previous control panel, allowing for quicker enjoyment of my swimming space.

In terms of value, this replacement offers a cost-effective solution to restore heater functionality without the expense of a full system replacement. Overall, the IDXL2DB1930 Display Board is a reliable choice for pool owners needing a practical fix for their Hayward heaters.

To buy this product, click here.

IDXLFLS1930 Flame Sensor for Hayward Heaters

#5 CHOICE

IDXLFLS1930 Flame Sensor Replacement fit for Hayward Pool Heater Parts, Pool Heater Ignitor Compatible with Hayward Universal H-Series Induced Draft and Gas Heater H250IDL H300IDL H400IDL H150FD

After testing the IDXLFLS1930 Flame Sensor Replacement for my Hayward pool heater over the past month, here’s how it performs for ensuring reliable ignition. This sensor is designed for various Hayward Universal H-Series models, including the H250IDL and H400IDL, making it an excellent choice for pool owners looking to maintain their heating system. Made from high-quality metal, it boasts a compact size that fits seamlessly into the existing setup.

Pros

  • Reliable performance: The sensor resolved my ignition issues immediately, providing consistent firing for my pool heater.

Cons

  • Compatibility check required: It’s crucial to confirm your model before purchasing, as it may not fit all variations.

Unlike other flame sensors I’ve used in the past, this replacement does not suffer from frequent failures or inconsistencies, which can be a common flaw in cheaper alternatives. The IDXLFLS1930 truly stands out with its durability and ease of installation, allowing me to replace the old sensor without any hassle.

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For pool enthusiasts and homeowners who need a dependable solution for their heating systems, the IDXLFLS1930 Flame Sensor offers great value and performance. Overall, it has made my pool heating experience much smoother, ensuring that I can enjoy my pool without the worry of ignition failures.

To buy this product, click here.

Faq about Hayward H400 Pool Heater:

1:What is the Hayward H400 Pool Heater?

The Hayward H400 Pool Heater is a high-efficiency gas pool heater designed to quickly warm swimming pools and spas.

2:What type of fuel does the Hayward H400 use?

The Hayward H400 operates on either natural gas or propane, providing flexibility for users.

3:What is the heating capacity of the Hayward H400?

The Hayward H400 has a heating capacity of 400,000 BTU, making it suitable for larger pools.

4:How energy-efficient is the Hayward H400?

The Hayward H400 features an efficient heat exchanger and offers an energy efficiency rating of up to 84%.

5:What are the installation requirements for the Hayward H400?

Installation requires proper ventilation, a gas supply, and adherence to local codes; professional installation is recommended.

6:Can the Hayward H400 be used for spas?

Yes, the Hayward H400 is suitable for heating both pools and spas effectively.

7:What maintenance is needed for the Hayward H400?

Regular maintenance includes checking the gas line, cleaning the filter, and ensuring proper water chemistry.

Conclusion

The Hayward 400,000 BTU Natural Gas Pool Heater exemplifies efficiency and reliability, ensuring optimal water temperatures for an enjoyable swimming experience. Its robust construction and advanced technology make it a preferred choice for pool enthusiasts seeking consistent performance.

Conversely, the Hayward 400,000 BTU Propane Pool Heater offers unparalleled versatility, catering to users with limited natural gas access. Its rapid heating capabilities combined with user-friendly features position it as an exceptional alternative, appealing to those who prioritize convenience without compromising quality.