BestNaturalGasPoolHeater.com is supported by readers and may earn an affiliate commission.




Hayward Propane Pool and Spa Heater - 400,000 BTU Universal H-Series

Heat Up Your Pool and Spa with the Powerful and Efficient Hayward W3H400FDP Propane Heater - Perfect for In-Ground Pools and Spas!

- User-Friendly Controls: The heater features an easy-to-use digital control panel that allows you to set the temperature of your pool or spa with precision. The control panel also includes diagnostic codes that help you troubleshoot any issues that may arise.
- Durable Construction: The Hayward W3H400FDP Universal H-Series 400,000 BTU Propane Pool and Spa Heater is built to last. It features a corrosion-resistant heat exchanger and a durable ext

The Hayward W3H400FDP Universal H-Series 400,000 BTU Propane Pool and Spa Heater is the perfect solution to keep your in-ground pool or spa warm and comfortable throughout the year. With its advanced technology and high heating capacity, this heater can quickly and efficiently heat up large pools and spas. The heater is designed with a versatile universal design that allows it to be used with any existing filtration system or pool/spa automation system. Its compact size and easy installation process make it a great option for both new and existing pool and spa owners. The heater is also equipped with a range of safety features, including a rust-resistant heat exchanger and a high-limit pressure switch, ensuring that your pool or spa is always safe and secure. With the Hayward W3H400FDP Universal H-Series 400,000 BTU Propane Pool and Spa Heater, you can enjoy the luxury of a warm and comfortable pool or spa all year round.