Hayward Universal H-Series Natural Gas Heater 400,000 BTUs, Low NOx | W3H400FDN
The Hayward Universal H-Series W3H400FDN Low NOx Pool Heater delivers powerful performance with an impressive 400,000 BTUs, making it the perfect choice for large residential or commercial pools and spas. Engineered for energy efficiency and dependable operation, this natural gas heater is designed to meet the rigorous demands of pool professionals and pool owners who value robust heating capacity and durability.
Equipped with a premium cupro nickel heat exchanger, the W3H400FDN provides exceptional resistance to corrosion from salt water and chemically treated pools, ensuring longer life and reliable heating performance. Its universal design makes it highly adaptable for new installations or as a replacement, with flexible plumbing and electrical connections to suit diverse system requirements.
Compliant with low NOx emission standards, the W3H400FDN is an environmentally responsible solution that contributes to improved air quality. Hayward’s dedication to innovative engineering ensures this heater delivers fast, efficient, and consistent heating to keep your pool water at the perfect temperature throughout the swimming season.
- Model: W3H400FDN
- Fuel Type: Natural Gas
- Heating Capacity: 400,000 BTUs
- Heat Exchanger: Cupro Nickel for superior corrosion resistance
- Energy-efficient design helps reduce operational costs
- Electrical Requirements: 120V / 240V
- Amperage: 5.5 amps
- Minimum Flow Rate: 20 gallons per minute
- Plumbing Connections: 2" x 2-1/2" CPVC union fittings
- Patented header by-pass design for optimized hydraulic performance
- Low NOx emissions compliant with clean air quality standards
- Application: Suitable for large residential and commercial pools and spas
SKU: W3H400FDN
