Hayward 400K BTU H-Series OmniX Natural Gas Heater, W3HS400FDN, Cupronickel, Low NOx
Hayward Universal H-Series Heater 400,000 BTU - Natural Gas w/ OmniX
Universal H-Series pool and spa gas heaters are engineered for easy drop-in replacement, with direct compatibility to Hayward plumbing adapters. At the center is Hayward’s Universal Display, delivering a consistent, intuitive control experience across Omni®, OmniX®, and competitive automation systems. With OmniX embedded intelligence, the heater provides enhanced programmability, advanced diagnostics, and seamless remote connectivity.
Features:
- Cupro-nickel heat exchanger offers exceptional protection against corrosion and premature failure caused by unbalanced water chemistry
- Totally managed water flow boasts industry-leading hydraulic performance coupled with lightning-fast speed-to-heat capability
- A universal junction box allows either left or right electrical installation
- Front-panel-only access provides easy service and maintenance, avoiding the problems and costs associated with front-and-back-panel access heaters
- Low NOx emissions meet clean air quality standards
- Backwards Compatible OmniX Retrofit Kits available for existing Universal H-Series gas heaters 2016 or newer with the current bezel cutout
Optional OmniX Gateway: The OmniX Gateway is an add-on that connects the heater to Hayward’s OmniX app for remote monitoring and control from a smartphone. Without it, the heater can still be operated locally or through compatible wired automation.
Specifications:
- Active Defrost: No
- Application: New Construction, Renovation
- Boost Mode: No
- Brand: Hayward
- Circuit Amps: 5.5
- Compressor Speed: N/A
- Cooling Capability: No
- Fuel Type: Natural Gas (NA)
- GTIN: 610377469159
- Heating Capacity (BTU/hr): 400,000
- Hertz - Heaters: 60 Hz
- Kilowatts: 117 kW
- Labor Warranty: None
- Low Ambient Operation: Yes
- Maximum Breaker Size (Amps): 15
- Parts Warranty: 1-year
- Phase Heaters: 1
- Pool Type: In-Ground
- Rear Clearance - Heaters: 6"
- Refrigerant: No
- Series Heaters: OmniX
- Shipping Dimensions: 30.6 " x 32.8 " x 39.5 "
- Shipping Weight: 213.5 lb
- Side Clearance - Heaters: 12"
- Silent Mode: No
- Voltage - Heaters: 120/240V
Support Documents:
- Brochure
- Energy Guide Label
- Owner's Manual
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Hayward Universal H-Series Heater 400,000 BTU - Natural Gas w/ OmniX
Universal H-Series pool and spa gas heaters are engineered for easy drop-in replacement, with direct compatibility to Hayward plumbing adapters. At the center is Hayward’s Universal Display, delivering a consistent, intuitive control experience across Omni®, OmniX®, and competitive automation systems. With OmniX embedded intelligence, the heater provides enhanced programmability, advanced diagnostics, and seamless remote connectivity.
Features:
- Cupro-nickel heat exchanger offers exceptional protection against corrosion and premature failure caused by unbalanced water chemistry
- Totally managed water flow boasts industry-leading hydraulic performance coupled with lightning-fast speed-to-heat capability
- A universal junction box allows either left or right electrical installation
- Front-panel-only access provides easy service and maintenance, avoiding the problems and costs associated with front-and-back-panel access heaters
- Low NOx emissions meet clean air quality standards
- Backwards Compatible OmniX Retrofit Kits available for existing Universal H-Series gas heaters 2016 or newer with the current bezel cutout
Optional OmniX Gateway: The OmniX Gateway is an add-on that connects the heater to Hayward’s OmniX app for remote monitoring and control from a smartphone. Without it, the heater can still be operated locally or through compatible wired automation.
Specifications:
- Active Defrost: No
- Application: New Construction, Renovation
- Boost Mode: No
- Brand: Hayward
- Circuit Amps: 5.5
- Compressor Speed: N/A
- Cooling Capability: No
- Fuel Type: Natural Gas (NA)
- GTIN: 610377469159
- Heating Capacity (BTU/hr): 400,000
- Hertz - Heaters: 60 Hz
- Kilowatts: 117 kW
- Labor Warranty: None
- Low Ambient Operation: Yes
- Maximum Breaker Size (Amps): 15
- Parts Warranty: 1-year
- Phase Heaters: 1
- Pool Type: In-Ground
- Rear Clearance - Heaters: 6"
- Refrigerant: No
- Series Heaters: OmniX
- Shipping Dimensions: 30.6 " x 32.8 " x 39.5 "
- Shipping Weight: 213.5 lb
- Side Clearance - Heaters: 12"
- Silent Mode: No
- Voltage - Heaters: 120/240V
Support Documents:
- Brochure
- Energy Guide Label
- Owner's Manual
