- BEST FOR: In-ground pools and spas with a surface area up to 1,200 ft. where natural gas is available. Its low environmental impact makes it ideal for pools and spas located where low-NOx emissions are required.
- PREMIUM PERFORMANCE: The Hayward Universal H-Series 400,000 BTU Natural Gas Heater delivers fast premium heating performance for years of reliable, long-lasting comfort.
- CORROSION PROTECTION: The Universal H-Series boasts exceptional protection against corrosion and premature failure caused by unbalanced water chemistry.
- ENERGY SAVINGS: The efficient, industry-leading design reduces circulation pump run time to provide energy savings.
- EASY-TO-USE: Intuitive front control panel provides easy operation, service and maintenance.
Details: The Universal H-Series 400,000 BTU Natural Gas Pool & Spa Heater from Hayward provides reliable, long-lasting comfort for pools and spas with a surface area up to 1,200 ft. Built with a durable cupro nickel heat exchanger, it offers exceptional protection against corrosion and premature failure caused by unbalanced water chemistry, ensuring you get season after season of premium heating performance. The Universal H-Series boasts industry-leading hydraulic performance coupled with lightning-fast speed-to-heat capability—so you spend less time waiting, and more time swimming. Its low NOx emissions meet air quality standards in all low-NOx areas, so you can rest easy knowing its environmental impact is low, too.