Hayward W3H400FDP Propane, 400,000 BTU Universal Propane Pool and Spa Heater
Available Options
For pool owners who want to extend their swim season without high energy bills, the Hayward Universal H-Series propane heater keeps your in-ground pool or spa warm and inviting. Imagine enjoying a comfortable dip on a crisp fall evening—this heater makes that possible with efficient, reliable performance.
Its cupro nickel heat exchanger resists corrosion from unbalanced water, so you avoid premature failures and costly repairs. The industry-leading hydraulic design cuts pump run time, saving you money on electricity. With front-panel-only access and an intuitive control pad, setup and adjustments are straightforward, letting you focus on relaxation.
Low NOx emissions meet strict air quality standards, making it an eco-friendly choice for any backyard. Compatible with propane systems, it delivers consistent heat even in cooler temperatures, ensuring your pool or spa is always ready when you are.
Features
- Premium heating performance for reliable comfort
- Cupro nickel heat exchanger for corrosion protection
- Industry-leading hydraulic design for energy savings
- Front-panel access and intuitive control pad
- Low NOx emissions for environmental compliance
Product details
General specs
- Brand: Hayward
- Model: W3H250FDN
- heat_exchanger_material: Cupro nickel
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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Price History for seller Amazon
| Date | Price |
|---|---|
| 11/9/25 | $4,499.00 |
| 5/10/25 | $4,199.00 |
Shipping options
United States
Available Options
|
Natural Gas, 250,000 BTU | Amazon | $3,699.00 | Available | View |
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Propane, 400,000 BTU | Amazon | $4,499.00 | Available | Current |
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