Struggling to maintain the perfect pool temperature? A reliable heater can solve this issue effectively.
The Hayward W3H250FDN Universal H-Series is designed to provide optimal warmth for your pool and spa. This heater offers efficient heating, ensuring you enjoy comfortable swimming conditions year-round.
Standout features include its advanced technology for quick heating and eco-friendly operation, making it a smart choice for any pool owner. The Hayward W3H150FDP and W3H135FDN models also offer versatile heating options, simplifying your pool maintenance.
In our full review, we break down performance, durability, and more to help you choose the best heater for your needs.


Hayward 250,000 BTU Natural Gas Pool Heater
The adjustable valve sets the Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool and Spa Heater apart from its competitors. This feature allows for precise temperature control, ensuring optimal heating efficiency for in-ground pools and spas. Built with a durable cupro nickel heat exchanger, this heater boasts exceptional resistance to corrosion, enhancing its longevity even in challenging water chemistry conditions. The dimensions of the unit are compact enough to fit in various installations, while its robust construction ensures it can withstand the elements.
Key Advantages
- The 316-grade stainless steel components resist corrosion, providing durability and extending the product’s lifespan.
- Its industry-leading hydraulic design minimizes circulation pump run time, resulting in significant energy savings.
- Front-panel-only access combined with an intuitive control pad simplifies operation, service, and maintenance.
- Low NOx emissions comply with air quality standards, making it an environmentally friendly option.
Limitations
- Not compatible with propane systems, limiting its use to natural gas installations.
- Installation may require professional assistance, adding to overall costs.
Best for outdoor enthusiasts needing a reliable and efficient heating solution for their in-ground pools and spas, the Hayward W3H250FDN offers performance and durability that stands out in the market.
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Hayward 150,000 BTU Propane Pool Heater
The adjustable valve sets the Hayward W3H150FDP Universal H-Series 150,000 BTU Propane Pool and Spa Heater apart from its competitors. This feature allows for precise control over the heating output, ensuring optimal performance tailored to specific user needs. Constructed from cupro nickel, the heat exchanger measures 24 x 40 x 30 inches, providing robust protection against corrosion, particularly in environments with unbalanced water chemistry.
Key Advantages
- 316-grade stainless steel components enhance durability and resistance to rust, extending the heater’s lifespan.
- Industry-leading hydraulic design minimizes circulation pump run time, resulting in significant energy savings.
- Front-panel-only access simplifies operation and maintenance, making it user-friendly even for those less experienced with pool equipment.
- Low NOx emissions comply with air quality standards in low-NOx areas, contributing to a reduced environmental footprint.
Limitations
- Not compatible with electric pool heating systems, limiting options for users seeking hybrid solutions.
- Installation may require professional assistance, potentially increasing initial costs.
Best for outdoor enthusiasts needing efficient and reliable heating solutions for in-ground pools and spas, the Hayward W3H150FDP offers a blend of performance, durability, and ease of use, making it a solid investment for long-term comfort and enjoyment.
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Hayward H-Series 135k BTU Pool Heater
The adjustable valve sets the Hayward W3H135FDN H-Series Pool/Spa Heater apart from competitors, allowing for precise control over water flow and temperature regulation. This natural gas model boasts a durable cupro nickel heat exchanger, which enhances its longevity and efficiency. With dimensions of 28.5 x 23.5 x 16.5 inches, it fits seamlessly into most pool setups while delivering a powerful 135,000 BTU output.
Key Advantages
- The 316-grade stainless steel components resist corrosion, ensuring durability in harsh outdoor environments.
- Industry-leading hydraulic performance provides faster speed-to-heat capability, making it ideal for quick pool heating.
- The intuitive electronic panel simplifies operation, allowing users to easily adjust settings.
- Low NOx emissions comply with clean air quality standards, making it an environmentally friendly choice.
Limitations
- Not compatible with propane systems, limiting its application to natural gas setups only.
- Installation may require professional assistance due to its complex nature.
Best for outdoor enthusiasts needing an efficient and reliable heating solution for their inground pools, the Hayward W3H135FDN is a top choice for those who prioritize performance and durability in their pool heating systems.
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Hayward H-Series Pool Heater Beige
The Hayward W3H135FDP H-Series Pool Heater stands out with its durable cupro nickel heat exchanger, which ensures longevity and efficient heat transfer. This heater is designed for inground pools and operates at a maximum input of 135,000 BTU, making it suitable for various pool sizes. The unit measures 29.5 x 21.5 x 15.5 inches and is constructed with high-quality materials for enhanced durability.
Key Advantages
- The cupro nickel heat exchanger resists corrosion and is ideal for saltwater pools, ensuring a longer lifespan.
- Its industry-leading hydraulic performance allows for faster heating, reducing wait times for pool enjoyment.
- The intuitive electronic panel simplifies operation, making it accessible for users of all experience levels.
- Low NOx emissions meet clean air quality standards, promoting environmental responsibility.
Limitations
- Not compatible with above-ground pools, limiting its use to permanent installations.
- Higher initial investment compared to standard heaters may deter budget-conscious buyers.
In summary, the Hayward W3H135FDP H-Series Pool Heater is best for outdoor enthusiasts needing efficient and reliable heating solutions for their inground pools. Its advanced features and durable construction make it a top choice for those seeking performance and longevity.
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Hayward HeatPro 100,000 BTU Heat Pump
The adjustable valve sets the Hayward W3HP31005T HeatPro Heat Pump apart from competitors, offering precise control over water temperature for in-ground pools. Constructed with 316-grade stainless steel and featuring a Gold Fin evaporator coil, this heat pump ensures exceptional corrosion resistance and durability, even in harsh coastal environments. With dimensions of 40 x 24 x 32 inches, it fits seamlessly into most pool setups.
Key Advantages
- The titanium tube heat exchanger enhances longevity and efficiency, making it ideal for regular pool usage.
Limitations
- Not compatible with above-ground pools, limiting its use to in-ground models only.
Best for outdoor enthusiasts needing a reliable, energy-efficient solution for heating and cooling their in-ground pools, the Hayward W3HP31005T HeatPro is designed for those who prioritize performance and durability. Its economical operation, leveraging surrounding air for temperature control, positions it as a superior choice compared to traditional propane or electric heaters. With over 80 years of experience, Hayward continues to lead the industry with innovative and trusted pool equipment.
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Faq about Hayward Inground Pool Heater:
1: What is a Hayward inground pool heater?
A Hayward inground pool heater is a heating system designed to warm the water in inground swimming pools, ensuring comfortable swimming temperatures year-round.
2: How does a Hayward inground pool heater work?
This heater uses gas or electricity to heat the water. It circulates pool water through a heat exchanger, where it absorbs heat before returning the warm water to the pool.
3: What are the benefits of using a Hayward inground pool heater?
Benefits include extended swimming seasons, energy efficiency, and reliable performance. Hayward heaters are known for their durability and ease of use.
4: How do I maintain my Hayward inground pool heater?
Regular maintenance includes cleaning the filter, checking for leaks, and ensuring proper ventilation. Annual professional servicing is also recommended.
5: Can I install a Hayward inground pool heater myself?
While some homeowners may attempt DIY installation, it is advisable to hire a professional for safety and to ensure proper setup and compliance with local codes.
6: What size Hayward heater do I need for my pool?
The size depends on your pool’s volume and desired temperature increase. A professional can help determine the appropriate heater size for optimal performance.
Conclusion
Both the Hayward 250,000 BTU Natural Gas Pool Heater and the Hayward 150,000 BTU Propane Pool Heater exemplify superior engineering and efficiency, catering to diverse heating requirements. The former stands out for its robust performance and rapid heating capabilities, making it ideal for larger pools, while the latter offers flexibility and convenience for users favoring propane as an energy source.
Ultimately, selecting either model ensures a luxurious swimming experience year-round, underpinned by Hayward’s commitment to quality and reliability. These heaters not only enhance comfort but also optimize energy consumption, reflecting an astute investment for any pool owner.





