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Universal H-Series ASME Gas Heater – 400K BTU – Natural Gas



Universal H-Series gas heaters are designed and certified for commercial use to offer unmatched performance


Hayward Commercial Pool's Universal H-Series ASME gas heaters are designed and certified for commercial use. The flagship of our H-Series line encompasses high-end features and construction materials as standard. They combine industry-leading hydraulics, exceptional performance, energy efficiency and reliability, with planet-friendly low-NOx emissions. Flexible connection options make them ideal for new or existing applications. Choose from 250,000, and 400,000, and 500,000 BTU natural gas or propane models.

* Patented Cupro Nickle Finn Plate™ heat exchanger with bronze header as standard
* Independent left or right side electric, water and gas connections
* 2in x 2 1/2in CPVC flanged connections
* ASME pressure relief valve included as standard
* Electronic lock-out feature prevents unauthorized access to configuration settings
* Easy installation and service via access of single front panel
* Easy gas valve adjustment
* Easy dual voltage conversion with fuse-protected circuit boards
* Texas Heater Kits Available
* 500,000 BTU provides unprecedented speed to heat, with just 2 models delivering 1 million BTU’S while using minimal pump room space
  • EXPERT LINE products can only be purchased through you local pool professional or in-store.
  • 3+ Year Parts and Labor Warranties*

*When sold by a Totally Hayward® partner. Exclusions, other terms and conditions may apply.

Active Defrost No
Boost Mode No
Brand Hayward
Channel Expert Line
Cooling Capability No
GTIN 610377135245
Labor Warranty 3-year
Low Ambient Operation No
Master Carton Qty 1
Parts Warranty 3-year
Pool Type Commercial
Refrigerant No
Shipping Dimensions 29.3 " x 32 " x 38.5 "
Shipping Height 29.3 in
Shipping Length 38.5 in
Shipping Weight 237 lb
Shipping Width 32 in
Silent Mode No
Voltage - Heaters 120/240 Volts