Hayward Universal H-Series 400,000 BTU Propane Low NOx Pool Heater with OmniX | W3HS400FDP

Hayward Universal H-Series 400,000 BTU Propane Low NOx Pool Heater with OmniX | W3HS400FDP

Heat your pool quickly and efficiently with the Hayward Universal H-Series W3HS400FDP. Featuring 400,000 BTUs of liquid propane heating power, OmniX smart controls, and a premium cupro-nickel heat exchanger, this heater delivers dependable comfort for residential pools and spas.

Features

• 400,000 BTU liquid propane heater.
• Integrated OmniX universal controls.
• Cupro-nickel heat exchanger for maximum corrosion resistance.
• Low NOx environmentally-friendly operation.
• Fan-assisted combustion with electronic ignition.
• Patented butterfly bypass supports up to 125 GPM.
• Compact footprint with zero wall-clearance installation.
• Universal plumbing adapters simplify replacement installations.

Description

The Hayward W3HS400FDP combines the trusted Universal H-Series platform with OmniX smart controls to deliver rapid, dependable heating for residential pools and spas. Its compact design fits easily into tight equipment pads while minimizing installation time.

The premium cupro-nickel heat exchanger provides exceptional durability in saltwater and chemically demanding environments. Combined with Low NOx emissions, electronic ignition, and Hayward's industry-leading hydraulic efficiency, this heater provides reliable performance season after season.

Pro Tip

Keep water chemistry properly balanced and clean the filter regularly to improve heater efficiency and maximize the lifespan of the heat exchanger and internal components.

Installation Tips

Install outdoors on a level equipment pad with proper ventilation. Verify propane gas supply, electrical service, and plumbing connections before startup. Follow all local codes and Hayward installation requirements.

We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:

• Pentair Warranty
  
• A&A (Pentair In-Floor) Warranty
  
• Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
  
• Paramount Warranty
  
• BlueSquare Warranty
  
• Hayward Warranty
  
• All Other Manufacturer Warranties
  

Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.