The Hayward Universal H-Series 150,000 BTU Low NOx Propane Heater (W3H150FDP) is ideal for most pool types and sizes, providing efficient and reliable heating. It is compatible with any sanitizing system, including saltwater systems, and features an easy-to-read L.E.D. control panel for digital temperature readouts and diagnostics. This heater boasts industry-leading hydraulic performance, reducing circulation pump run time to save energy. With a “Totally Managed” cupro-nickel heat exchanger, it offers superior corrosion and erosion resistance, making it perfect for saltwater pools. Environmentally friendly and compliant with air quality standards, it comes with a 3-year limited manufacturers warranty.