Hayward Universal H-Series Propane Heater 400K BTU

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The Hayward Universal H-Series Propane Heater 400K BTU is a member of the Hayward Energy Solutions family of products. While all of the heaters in this family of products are energy efficient, this particular heater boost an 83 percent state-of-the-industry thermal efficiency.

To conserve an incredible amount of energy and prevent future erosion damage, this advanced propane heater is equipped with a patented polymer header design that offers unprecedented hydraulic performance. The cutting-edge hydraulic performance conserves energy by drastically reducing the decreasing the circulation time of the pump.

The intuitive LED digital control panel enables you to save time and money with its temperature readouts.

The product boosts low NOx emissions, so the heater is environmentally responsible. Environmental concerned pool owners will love this product since they will be able to enjoy luxury and peace of mind all season long.


  • Totally managed flow provides exceptional corrosion resistance and erosion protection. Ideal for today’s salt-based electronic chlorination systems
  • 83% Thermal efficiency
  • Industry-leading hydraulic performance saves energy by reducing circulation pump run time
  • State-of-the-industry finn plate heat exchanger with special V-groove design for faster heating and longer life
  • Easy to install
  • High and low voltage connections are easy and convenient with left and right side junction boxes
  • Exclusive silicon nitride ignition system for dependable lighting and reliable operation
  • Electronic control display maintains water temperature, monitors heater performance with self-diagnostic capability
  • Unlike older forms of insulation, FireTile securely traps the heat, delivering the most performance from each BTU
  • Environmentally responsible


  • Brand : Hayward
  • Item : Low NOx Pool Heater
  • Series : Universal H-Series
  • Gas Type : Liquid Propane
  • Headers : Polymer
  • Control Type : Digital Electric, Dual Thermostat
  • Tubing Material : Cupro Nickel
  • BTUH Input : 399900
  • Cabinet Width : 36 Inch
  • Cabinet Depth : 29-1/2 Inch
  • Cabinet Height : 24 Inch
  • Flue Diameter : 8 Inch
  • Gas Connection : 3/4 Inch
  • Water Connection : 2 Inch x 2-1/2 Inch Unions
  • Voltage Rating : 110/220 V
  • Frequency Rating : 60 Hz
  • Phase : 1-Phase


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