Hayward Universal H-Series Low NOx Pool Heaters
Enjoy energy-efficient and environmentally responsible heating with Hayward’s Universal H-Series Low NOx Pool Heaters. Designed for both in-ground and large above-ground pools, these heaters deliver reliable, high-performance heating with advanced low-emission technology. Whether you're upgrading existing equipment or installing new, the Universal H-Series adapts easily to your setup.
Each model features a durable cupronickel heat exchanger with Totally Managed Flow for superior protection against corrosion and erosion—perfect for use with modern salt-based chlorination systems. The silicon nitride ignition system ensures fast, dependable start-ups every time. Built with efficiency, durability, and ease of use in mind, the H-Series is a trusted choice for pool owners seeking consistent heating performance.
Key Features:
- Low NOx emissions—ideal for environmentally conscious pool owners
- Efficient heating for in-ground and large above-ground pools and spas
- Cupronickel heat exchanger resists corrosion from saltwater systems
- Advanced ignition system for reliable lighting
- Compatible with new or existing pool equipment
- Available in 150K, 200K, 250K, and 400K BTU models
Note: For elevations above 6,000 ft, please request a high-altitude compatible model.
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H-Series Size Chart
| Model | Recommended Pool Surface Area |
|---|---|
| H150 | 450 sq ft |
| H200 | 600 sq ft |
| H250 | 750 sq ft |
| H400 | 1400 sq ft |
For technical support, contact Hayward at 1-800-HAYWARD or visit www.hayward-pool.com.
The Hayward Universal H-Series gas heaters are a reliable, energy-efficient solution for heating both in-ground and large above-ground pools and spas. Designed for new installations or system upgrades, these heaters combine strong performance with environmentally responsible low NOx emissions.
Built with an advanced hydraulic and combustion design, the H-Series helps reduce circulation pump run time, which can lower overall operating costs while improving efficiency. The durable cupronickel heat exchanger provides excellent resistance to corrosion—especially in saltwater systems—ensuring long-lasting performance.
With fast, dependable ignition and smart water flow management, the Universal H-Series delivers consistent, even heating when you need it. Flexible installation options make it easy to integrate into a wide range of pool setups, making it a trusted choice for long-term comfort and performance.
Note: For elevations above 6,000 ft, please request a high-altitude compatible model.
Key Features
- Energy-efficient heating - Advanced hydraulic design can reduce pump run time and lower operating costs
- Low NOx emissions - Designed to meet clean air standards and reduce environmental impact
- Durable cupronickel heat exchanger - Provides superior resistance to corrosion and erosion, especially in saltwater pools
- Totally Managed Flow system - Ensures consistent water velocity through all tubes for faster, more efficient heating
- Patented header bypass design - Improves overall heating efficiency and system performance
- Forced draft combustion system - Maintains precise airflow for reliable operation without a high-wind stack
- Fast, reliable ignition - Silicon nitride ignition system ensures consistent start-ups
- Easy installation - 2" x 2½" CPVC union connections simplify setup and replacement
- Flexible compatibility - Works with new or existing pool and spa systems
- Multiple size options - Available in 150K, 200K, 250K, and 400K BTU models to fit different pool sizes
Model Recommended Pool Surface Area
H150 450 sq ft
H200 600 sq ft
H250 750 sq ft
H400 1400 sq ft
For technical support, contact Hayward at 1-800-HAYWARD or visit www.hayward-pool.com.
