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RUUD #57 Liquid Propane Digital Heater 399K BTU
RUUD #57 Liquid Propane Digital Heater 399K BTU
A powerful and energy-efficient propane pool and spa heater designed for high-performance heating with advanced durability and reliability.
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The Ruud #57 Liquid Propane Digital Heater delivers powerful and efficient heating, ensuring a consistently warm pool or spa experience.
Designed for durability and high performance, this 399,000 BTU heater features a polymer header and copper tubing to maximize heat transfer and longevity.
The advanced ProTek Shield technology protects the heat exchanger, extending the life of the heater and improving overall efficiency.
With digital electronic controls, this heater allows precise temperature adjustments, making operation simple and user-friendly.
Engineered to meet federal and state energy efficiency standards, the Ruud #57 is an eco-friendly heating solution for both residential and commercial pools and spas.
Built for reliability, this propane heater operates efficiently at elevations up to 2,000 feet and accommodates a wide range of flow rates.

⭐⭐⭐⭐⭐
Customers appreciate the Ruud #57 for its rapid and efficient heating performance.
Many reviewers highlight the durability of the polymer header and copper tubing, which enhance its longevity.
The user-friendly digital controls make temperature management simple and hassle-free.
Users also praise its energy efficiency, noting significant cost savings over time.
Overall, this heater is considered a top choice for reliable and high-performance pool and spa heating.

- High BTU Output: 399,000 BTU heating power for fast, efficient pool and spa heating.
- ProTek Shield: Innovative technology extends the life of the heat exchanger and enhances durability.
- Digital Controls: User-friendly interface for precise temperature adjustments.
- Durable Construction: Polymer header and copper tubing optimize heat transfer and resistance to corrosion.
- Energy Efficient: Meets federal and state efficiency standards, ensuring cost savings and eco-friendly operation.
- Versatile Application: Suitable for residential and commercial pools and spas.
- Wide Flow Rate Range: Operates effectively between 125 GPM flow rates.
- Indoor & Outdoor Installation: ASME-certified for indoor installation with an optional draft hood.
- Reliable Performance: Designed for smooth operation at elevations up to 2,000 feet.
- Compact Design: Space-saving construction allows easy integration into existing pool setups.

- BTU Input: 399,000
- Voltage: 115V, 230V
- Fuel Type: Propane
- Heat Exchanger Material: Copper
- Header Material: Polymer
- Control Type: Digital Electronic
- Flow Rate: 125 GPM
- Phase: Single
- Cabinet Dimensions: 44.5" x 34" x 30"
- Weight: 233 lbs
- Installation Type: Indoor & Outdoor


Q: Is this heater suitable for high elevations?
Yes, the Ruud #57 operates efficiently at elevations up to 2,000 feet, making it a reliable choice for various locations.
Q: Can this heater be installed indoors?
Yes, it is ASME-certified for indoor installation and requires a proper draft hood for safe operation.
Q: How does the ProTek Shield enhance the heater’s lifespan?
The ProTek Shield protects the heat exchanger from corrosion and wear, ensuring long-term durability and improved efficiency.

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- 🌟 Top-notch products designed by leading pool & spa brands.
- 📦 Proudly ship locally from the USA, ensuring faster delivery.
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