Hayward W3H150FDN Universal H-Series 150,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas

Enjoy reliable, long-lasting comfort with the Hayward Universal H-Series 150,000 BTU Natural Gas Pool and Spa Heater, engineered to deliver premium heating performance season after season. Designed with a durable cupro nickel heat exchanger, this powerful heater provides outstanding resistance to corrosion, making it ideal for pools and spas exposed to varying or unbalanced water chemistry. Its robust construction helps ensure extended equipment life and consistent heating efficiency. The H-Series features an industry-leading hydraulic design that significantly reduces circulation pump run time, helping lower energy consumption and operating costs without compromising performance. With front-panel-only access, routine service and maintenance are fast and hassle-free, while the intuitive control pad allows you to easily adjust temperature settings and monitor system status for optimal comfort. Environmentally conscious, this model produces low NOx emissions that comply with strict air quality standards in low-NOx regions, minimizing environmental impact while maintaining exceptional heating capability. Whether you're warming your pool for early-morning swims or extending your evening relaxation time in the spa, the Hayward Universal H-Series provides the reliable heat, efficient operation, and durable construction you need for a comfortable, enjoyable swimming experience year-round.