HAYWARD H-SERIES 400,000 BTU WATER HEATER - NATURAL GAS - H400FDN
H400FDN
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Hayward Universal H-Series Low NOx 400,000 BTU Natural Gas Pool Heater – H400FDN
✅ Powerful, energy-efficient and environmentally friendly heating
Product Description
Enjoy a heated pool quickly and efficiently with the Hayward Universal H-Series Low NOx 400,000 BTU Natural Gas Pool Heater . Designed to deliver 83-84% thermal efficiency , this world-class heater is one of the most efficient on the market, while being environmentally friendly thanks to its low NOx emissions . Compliant with strict California and Texas environmental standards, it is the ideal choice for energy-conscious pool owners.
Featuring stainless steel burners , a corrosion-resistant cupronickel heat exchanger , and a FireTile combustion system , this pool heater maximizes every BTU to deliver rapid heat buildup and increased durability . Its intuitive LED control panel simplifies operation, and its forced draft system prevents weather conditions from affecting its performance.
💡 Heats an 800-gallon pool by 30°F in less than an hour!
Technical Characteristics
- Brand: Hayward
- Model: H400FDN
- Heating type: Natural gas
- BTU Rating: 400,000 BTU
- Heat Exchanger: Cupronickel – Corrosion resistant , ideal for saltwater environments
- Connection: 2 inch male thread
- Voltage: 120 / 240 V
- Maximum altitude: 7700 feet
- Shipping Dimensions: 39.6" x 32.8" x 30.6" (100.5 cm x 83.3 cm x 77.7 cm)
- Weight: 214 lb (97 kg)
Benefits
✔ Exceptional Energy Efficiency : Advanced technology reduces fuel costs.
✔ Environmentally Friendly : Low NOx emissions, complies with strict regulations.
✔ Ultra Fast Heating : Optimized performance for rapid temperature rise.
✔ Maximum Durability : Cupronickel heat exchanger providing superior corrosion resistance.
✔ Universal Installation : Compatible with most pools and spas.
✔ Forced Draft System : Protects against weather variations and improves combustion.
✔ LED Control Panel : Intuitive interface to monitor and adjust temperature easily.
Installation and Security
⚠ ATTENTION:
- Not compatible with soft-sided pools. Installation on these pools voids the warranty .
- Must be installed by an authorized technician to maintain warranty.
- Incorrect water chemistry = Void warranty. Be sure to follow the manufacturer's recommendations.
Guarantee
🛠 1-year limited parts warranty , subject to manufacturer's terms.
Available to order
📦 Contact us for delivery times!
🔥 Extend your swimming season with the Hayward Universal H-Series Low NOx 400,000 BTU pool heater!
🛒 Add to cart now!

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$4,999.99 CAD