Hayward H400FDP Universal H-Series Low Nox 400K BTU Pool and Spa Heater
Hayward H400FDP Universal H-Series Low Nox 400K BTU Pool and Spa Heater
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Hayward H400FDP Universal H-Series Low Nox 400K BTU Pool and Spa Heater

Key item features

  • Efficient Heating: Achieves industry-leading thermal efficiency and can raise an 800-gallon pool's temperature by 30 degrees in under an hour.
  • Environmental Compliance: Features low NOx emissions, meeting current California and Texas air quality standards for environmentally conscious pool owners.
  • Durable Construction: Built with stainless steel burners, corrosion-resistant heat exchangers, and insulated Fire Tile combustion chambers for superior durability.
  • Advanced Controls: Equipped with an LED control panel for monitoring performance and a dependable push-button ignition system.
  • Weather Resilience: Utilizes a forced draft system to eliminate the impact of outside weather variables, such as wind, on heating performance.
  • Flexible Installation: Offers universal fit flexibility with left or right-side electric, gas, and water connections, and 110v or 220v electric hook-up.
  • Compact Design: Features a lightweight, low-profile appearance with front-panel-only access for installation and service.
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Current price is $2,699.00
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4.4 out of 5 stars
stars70 ratings70 reviews
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Showing 1-3 of 70 reviews

Jun 12, 2025
Zach
5 out of 5 stars review

Seller Verified Purchase

Super fast Shipping

I ordered this heater on a Wednesday around noon and it was delivered by the next morning for free. Could not have asked for an easier process!

Review from Doheny's
Helpful?5M3B245SO0KK193989245
Jul 28, 2025
MarkB
5 out of 5 stars review

Seller Verified Purchase

So far so good !

The heater is working fine.

Review from Doheny's
Helpful?5M3B245SO0KK193989245
Jun 23, 2025
John
5 out of 5 stars review

Seller Verified Purchase

No problems - would buy it from you again

Great product - works well

Review from Doheny's
Helpful?5M3B245SO0KK193989245