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RUUD #57 Liquid Propane Digital Heater 266K BTU
RUUD #57 Liquid Propane Digital Heater 266K BTU
A powerful and energy-efficient liquid propane pool and spa heater with advanced digital controls, durable construction, and superior heat transfer for long-lasting performance.
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The RUUD #57 Liquid Propane Digital Pool and Spa Heater 266K BTU is a high-performance, energy-efficient heating solution designed to keep your pool or spa at the perfect temperature year-round.
Built with a durable PolyTuf powder-coated cabinet, it resists corrosion and weather damage, ensuring long-lasting performance. The all-copper-fin-tube heat exchanger maximizes heat transfer, while the stainless steel tube sheet provides a completely rust-free waterway.
An advanced Fire Tile combustion box enhances efficiency and prevents excess heat retention, making the unit safer and more reliable. The wind-resistant design allows for uninterrupted operation, protecting the heater from outdoor elements like leaves, debris, and downdrafts.
The Unitherm Governor prevents condensation and scale buildup, prolonging the heater’s lifespan and maintaining peak performance. High flow rates of up to 125 GPM ensure smooth operation, while CPVC 2-inch slip-fit connections make installation easy and secure.
With a digital electronic control system for precise temperature adjustments and ProTek Shield technology extending the unit’s life, the RUUD #57 is a smart and dependable choice for pool and spa owners.

⭐⭐⭐⭐⭐
Customers praise the RUUD #57 heater for its exceptional build quality and long-lasting performance, even in harsh outdoor conditions.
Many users appreciate its energy-efficient design, which helps maintain a comfortable pool temperature while keeping operating costs low.
The intuitive digital controls make it easy to adjust settings, providing precise temperature management without any hassle.
Pool owners love the wind-resistant design, which ensures uninterrupted heating even during bad weather.
Reviewers highlight the smooth installation process, with simple water connections that make setup quick and stress-free.
Users find it to be a great value for the price, offering premium features at a competitive cost compared to other high-performance models.

- PolyTuf Powder-Coated Cabinet – Resists rust and corrosion for long-lasting durability
- All-Copper-Fin-Tube Heat Exchanger – Ensures maximum heat transfer efficiency
- Stainless Steel Tube Sheet – Prevents rust and provides a nonferrous waterway
- Fire Tile Combustion Box – Enhances efficiency and prevents excess heat retention
- Wind-Resistant Design – Protects against outdoor elements for uninterrupted operation
- Unitherm Governor – Regulates water flow to prevent condensation and scale buildup
- High Flow Rate – Supports up to 125 GPM for smooth performance
- Digital Electronic Control System – Allows for precise temperature adjustments
- CPVC 2-Inch Slip-Fit Water Connections – Make installation secure and easy
- ProTek Shield Technology – Extends the lifespan of the heat exchanger

- BTUH Input: 266,000
- Gas Type: Liquid Propane
- Control Type: Digital Electronic
- Flow Rate: Up to 125 GPM
- Elevation Rating: 0 - 2000 ft
- Water Connections: 2-inch CPVC slip-fit
- Flue Diameter: 7 inches
- Indoor Drafthood: 62 inches
- Stackless Outdoor Top: 40 inches
- Voltage Rating: 115/230V
- Phase: 1-Phase
- Frequency Rating: 60 Hz
- Gas Connection: 3/4-inch NPT
- Tubing Material: Copper
- Headers: Polymer
- Housing Finish: PolyTuf Powder Coat
- Standards & Approvals: ASME Certified, ANSI Z21.56/CSA 4.7


How efficient is this heater compared to other models?
The RUUD #57 is designed for maximum efficiency, meeting or exceeding all federal and state energy standards while delivering consistent and cost-effective heating.
Can this heater withstand outdoor weather conditions?
Yes, its PolyTuf powder-coated cabinet and wind-resistant design protect it from rain, debris, and other environmental elements, ensuring long-term durability.
Is the installation process difficult?
No, the heater comes with CPVC 2-inch slip-fit water connections and a compact design, making installation quick and straightforward.


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Eagle Ray Digital Water Testing Kit
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