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Hayward Universal H-Series Natural Gas Heater 150K BTU 120/240V W3H150FDN
Hayward Universal H-Series Natural Gas Heater 150K BTU 120/240V W3H150FDN
Reliable, energy-efficient, and corrosion-resistant, the Hayward Universal H-Series 150K BTU Natural Gas Heater extends your pool season with powerful heating performance.
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Hayward Universal H-Series W3H150FDN Natural Gas Heater 150K BTU is a high-performance, energy-efficient pool heater designed for in-ground pools, delivering reliable and consistent heating for an extended swim season.
Built with advanced corrosion-resistant technology, this heater ensures long-lasting durability even in harsh pool environments affected by unbalanced water chemistry.
The installation-friendly design supports both new construction and aftermarket setups, making it adaptable to various pool systems and configurations.
With a powerful 150,000 BTU heating capacity, it efficiently warms pools while maintaining energy savings, reducing operational costs over time.
This heater features a compact design with a small footprint, allowing for easy integration without compromising space while maintaining superior heating performance.
Backed by Hayward’s trusted reputation, this model offers a 3-year parts warranty and a 1-year labor warranty, ensuring peace of mind and reliable operation.

⭐⭐⭐⭐⭐
Customers appreciate the Hayward Universal H-Series heater’s fast and efficient pool heating, allowing for an extended swim season.
Many users highlight its durability and corrosion-resistant design, ensuring long-term performance with minimal maintenance.
The easy installation process and compact footprint make it a popular choice for both new and existing pool setups.
Owners also love the cost-effectiveness of this heater, noting its excellent energy efficiency compared to other models.
Overall, this heater is a highly rated option for those seeking reliable and powerful pool heating with great value for money.

- Energy-efficient design minimizes operational costs
- Advanced corrosion-resistant technology extends lifespan
- High-performance 150,000 BTU heating capacity for faster warmth
- Installation adaptable for new construction or renovation projects
- Compact footprint for space-saving convenience
- Reliable operation backed by Hayward’s warranty

- Heating Capacity: 150,000 BTU/hr
- Fuel Type: Natural Gas
- Voltage: 120/240V
- Hertz: 60 Hz
- Kilowatts: 44 kW
- Circuit Amps: 5.5
- Maximum Fuse Breaker Size: 15 Amps
- Water Flow Rate: Min 20 GPM / Max 125 GPM
- Product Dimensions: 24" x 19" x 29.5"
- Shipping Dimensions: 30.6" x 32.8" x 33.3"
- Product Weight: 135 lbs
- Shipping Weight: 150 lbs
- Rear Clearance: 6 inches
- Side Clearance: 12 inches
- Warranty: 3-year parts, 1-year labor


Q: How energy-efficient is this pool heater?
This model is designed with energy efficiency in mind, utilizing advanced heating technology to reduce fuel consumption while maintaining optimal pool temperatures.
Q: Can this heater be used for both new and existing pool setups?
Yes, the Universal H-Series heater is installation adaptable, making it ideal for both new construction and aftermarket pool renovations.
Q: What kind of maintenance does this heater require?
Routine maintenance includes checking for debris buildup, ensuring proper gas connections, and keeping water chemistry balanced to prevent corrosion and extend the unit’s lifespan.


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