Hayward Pool Heater for Inground Pools Universal H-Series 400,000 BTU (Propane Gas Pool Heater) Pool and Spa Heater W3H400FDP Replacement for H400FDP

The Universal H-Series 400,000 BTU Propane 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.

• EASY TO USE: Intuitive front control panel for easy operation, service, and maintenance on this propane water heater; the digital LED display maintains water temperature, monitoring the heater's performance with self-diagnostic capabilities
• MULTIPLE COVERAGE OPTIONS FOR POOLS AND SPAS: This inground pool heater model supports efficient water warming for in-ground pools and spas up to 1,200 sq ft with a propane gas connection; other models cover 400, 600, or 750 sq ft
• ENERGY SAVING AND BUILT TO LAST: Designed for pool owners, this gas pool heater reduces circulation pump runtime for energy savings. Exceptional protection against corrosion and premature failure caused by unbalanced water chemistry.
• SIMPLE INSTALLATION: This pool heater for inground pools features a 400k BTU heating capacity and allows you to configure water, gas and electric connections on either the right or left side for enhanced installation flexibility
• LOW ENVIRONMENTAL IMPACT: Hayward propane gas spa and swimming pool heaters support low-NOx emissions and are eco-friendly, making for a safe pool heater for inground pools