The Hayward Universal H-Series Gas Heater is the universal solution for reliable and energy-efficient heating in any new or existing pool or spa. Designed with an industry-leading hydraulic system, it reduces circulation pump run time and can deliver energy savings of up to 18% compared to less efficient models.

Built with a standard cupro nickel heat exchanger, the H-Series provides excellent protection against corrosion from salt water and harsh pool chemicals, ensuring long-lasting performance. Its exclusive “Totally Managed” water flow technology maintains the same velocity through all tubes for faster, more even heating.

The patented header by-pass design further improves efficiency, while the forced draft system constantly moves air through the combustion chamber at a precise rate, eliminating the need for a high-wind stack and ensuring reliable operation in all conditions. Environmentally conscious, the Universal H-Series delivers low NOx emissions, meeting clean air quality standards.

With flexible 2in × 2½in CPVC union plumbing connections and robust durability, the Universal H-Series combines efficiency, versatility, and responsible heating—making it a dependable choice for years of poolside comfort.