Transform your swimming experience with the Hayward Natural Gas Pool Heater, offering efficiency and comfort for your pool.
The Hayward Natural Gas Pool Heater is perfect for maintaining optimal water temperatures in your pool or spa. With models like the W3H400FDN, W3H250FDN, and W3H150FDN, you can enjoy fast heating and energy efficiency. These heaters ensure a warm, inviting swimming environment, making them ideal for year-round use.
Whether you’re hosting a summer pool party or enjoying a relaxing evening swim, these heaters cater to various pool sizes and needs. Their compact design and user-friendly controls make them versatile and easy to operate, providing reliable performance every time.
In this review, we’ll cover key features, benefits, and user experiences with Hayward Natural Gas Pool Heaters. You’ll learn how to choose the perfect model for your needs and why these heaters stand out in the market.


Hayward Universal H-Series 400,000 BTU Heater
Hayward W3H400FDN Universal H-Series 400,000 BTU Natural Gas Pool and Spa Heater: 400,000 BTU, cupro nickel heat exchanger, 2-year warranty.
Benefits
- Delivers rapid heating for in-ground pools and spas, ensuring comfortable water temperatures.
- Energy-efficient design reduces circulation pump run time, leading to substantial savings on energy bills.
- Corrosion-resistant construction extends the lifespan of the heater, making it a reliable choice for long-term use.
- Low NOx emissions comply with environmental standards, making it an eco-friendly option.
Drawbacks
- Requires professional installation, which may add to initial costs.
- Noisy operation can be a concern for some users, especially in quiet neighborhoods.
A practical pick for homeowners seeking efficient heating solutions for their pools or spas. The Hayward W3H400FDN stands out for its durability and performance, making it an excellent investment for year-round enjoyment.
To buy this product, click here.
Hayward 250,000 BTU Natural Gas Pool Heater
Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool and Spa Heater: 250,000 BTU, cupro nickel heat exchanger, 2-year warranty.
Benefits
- Delivers rapid heating for in-ground pools and spas.
- Durable construction protects against corrosion and premature failure.
- Energy-efficient design reduces circulation pump run time.
- Front-panel access simplifies operation and maintenance.
- Low NOx emissions meet air quality standards.
Drawbacks
- Installation may require professional assistance for optimal performance.
- Initial cost can be higher than some competitors.
The Hayward W3H250FDN is a robust choice for pool and spa owners seeking efficient heating solutions. Its cupro nickel heat exchanger ensures longevity and reliable performance, even in challenging water conditions. The energy-efficient design not only saves on operational costs but also reduces environmental impact through low NOx emissions. With easy front-panel access, maintenance is straightforward, making it user-friendly.
However, potential buyers should consider that installation might necessitate a professional, which can add to the overall expense. Additionally, the upfront cost is higher compared to some other models on the market.
This heater is ideal for those who prioritize efficiency and durability in their pool and spa heating solutions.
To buy this product, click here.
Hayward Universal H-Series 150K BTU Heater
Hayward W3H150FDN Universal H-Series 150,000 BTU Natural Gas Pool and Spa Heater: 150,000 BTU, cupro nickel heat exchanger, low NOx emissions, 2-year warranty.
Benefits
- Delivers rapid heating for in-ground pools and spas, ensuring comfort in any season.
- Corrosion-resistant materials extend the life of the heater, even in challenging water conditions.
- Energy-efficient design reduces pump run time, leading to significant savings on energy costs.
- Easy access to the front panel simplifies maintenance and operation, making it user-friendly.
Drawbacks
- Requires professional installation, which can add to the overall cost.
- Higher initial investment compared to electric heaters, though it pays off in energy savings.
The Hayward W3H150FDN is ideal for pool owners seeking a reliable and efficient heating solution. Its robust construction and advanced design make it a practical choice for those who prioritize performance and longevity. Perfect for in-ground pools and spas, this heater meets environmental standards while delivering quick heat, ensuring that your swimming experience remains enjoyable throughout the year.
To buy this product, click here.
Hayward H-Series 135k BTU Heater
Hayward W3H135FDN H-Series Pool/Spa Heater: 135k BTU, natural gas model, durable cupro nickel heat exchanger.
Benefits
- Industry-leading hydraulic performance with faster speed-to-heat capability.
- Intuitive electronic panel for easy operation.
- Low NOx emissions—meets clean air quality standards.
Drawbacks
- Requires professional installation, which can add to overall costs.
- Not suitable for very large pools—best for moderate sizes.
The Hayward W3H135FDN is an excellent choice for homeowners seeking a reliable pool heater. With its durable construction and efficient heating capabilities, it stands out in the market. The cupro nickel heat exchanger ensures longevity and resistance to corrosion, making it a smart investment for pool maintenance.
Its intuitive electronic panel simplifies operation, allowing users to adjust settings with ease. Furthermore, its low NOx emissions make it an environmentally friendly option, aligning with contemporary standards for air quality.
However, prospective buyers should note that professional installation is necessary, which may lead to higher initial costs. Additionally, while effective for moderate-sized pools, this model may not be ideal for larger installations.
A practical pick for small spaces, the Hayward W3H135FDN H-Series Pool/Spa Heater combines efficiency and user-friendly features, making it a top contender for those looking to enhance their outdoor experience.
To buy this product, click here.
DRELD Natural Gas Pilot for Hayward Pool Heater
DRELD HAXPLT1931 Natural Gas Pilot: 12” long, stainless steel and copper, 6-month warranty.
Benefits
- Fast thermal response ensures quick heating, enhancing pool comfort.
Drawbacks
- Limited compatibility may not fit all pool heater models.
The DRELD HAXPLT1931 Natural Gas Pilot is a reliable replacement for Hayward H-Series Ed1 pool heaters, including models H150, H200, and H400. Made from durable stainless steel and copper, it promises high sensitivity and precision, ensuring safety and reliability. The pilot assembly features a fast thermal response, allowing it to heat pool water efficiently and effectively, making it a practical choice for pool owners.
One of the standout benefits is its ability to provide 750 millivolts of power, which is sufficient for most heating needs. The installation process is straightforward, requiring no advanced skills, making it accessible for DIY enthusiasts. This ease of installation is a significant advantage for those looking to replace their pilot assembly without professional help.
However, potential buyers should note that the DRELD HAXPLT1931 may have limited compatibility with certain models outside the specified range. It’s essential to verify compatibility with your specific heater model before purchasing. Overall, this pilot assembly is a solid option for anyone looking to maintain their Hayward pool heater, providing reliable performance in a compact design.
A practical pick for pool owners seeking an efficient heating solution.
To buy this product, click here.
Faq about Hayward Natural Gas Pool Heater:
1: What is a Hayward natural gas pool heater?
A Hayward natural gas pool heater is a heating system designed to warm swimming pool water using natural gas as its energy source, ensuring comfortable swimming temperatures.
2: How does a Hayward natural gas pool heater work?
This heater uses a heat exchanger to transfer heat from burning natural gas to the pool water, circulating it through the system to achieve the desired temperature.
3: What are the benefits of using a Hayward natural gas pool heater?
Benefits include quick heating times, energy efficiency, and the ability to maintain consistent water temperatures, making it ideal for year-round pool use.
4: Is installation of a Hayward natural gas pool heater complicated?
Installation typically requires professional assistance to ensure proper gas connections and compliance with local codes, making it essential to hire a qualified technician.
5: How do I maintain my Hayward natural gas pool heater?
Regular maintenance includes checking gas connections, cleaning filters, and inspecting the heat exchanger to ensure optimal performance and longevity.
6: What size Hayward natural gas pool heater do I need?
Heater size depends on your pool’s volume, desired temperature, and climate; consult a professional for the best size recommendation based on your specific needs.
Conclusion
The Hayward Universal H-Series 400,000 BTU Heater exemplifies unparalleled efficiency and robust performance, making it an optimal choice for larger aquatic environments. Its advanced technology ensures rapid heating, thereby enhancing user experience while minimizing energy consumption.
Conversely, the Hayward 250,000 BTU Natural Gas Pool Heater offers a commendable balance of power and affordability, catering to medium-sized pools with remarkable reliability. Both products reflect Hayward’s commitment to innovation and quality, ensuring that users enjoy their swimming experiences with optimal comfort and convenience.




