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Raypak R408A Natural Gas Professional Digital Heater 2-6' 399K BTU 13744
Raypak R408A Natural Gas Professional Digital Heater 2-6' 399K BTU 13744
A high-efficiency, durable natural gas heater designed for commercial pools and spas, featuring advanced digital controls and corrosion-resistant construction.
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The Raypak R408A Natural Gas Professional Digital Heater is a high-performance 399K BTU heater designed for commercial and professional use, ideal for pools, spas, and coastal conditions.
Its LCD digital display ensures precise temperature control and monitors operational status with service diagnostics.
Built for durability, it features corrosion-resistant headers, high-wind resistance, and a Unitherm governor to prevent condensation.
Combining smart design with efficiency, this heater exceeds federal and state fuel standards, offering high flow rates and long-lasting performance.

⭐⭐⭐⭐⭐
Customers praise the Raypak R408A for its robust construction and reliable performance in commercial settings.
The digital display and diagnostic features are highlighted for their ease of use and accuracy.
Many users appreciate its corrosion-resistant design, making it ideal for coastal environments.
The heater’s high efficiency and compliance with fuel standards are frequently mentioned.
Reviewers also commend its durability and ability to withstand harsh weather conditions.

- LCD Digital Display: Provides accurate temperature control and operational monitoring
- High-Wind Resistance: Designed to withstand harsh coastal conditions
- Corrosion-Resistant Headers: Ensures durability and longevity.
- Unitherm Governor: Prevents condensation for optimal performance.

- Application: Pool, Spa
- Use Type: Commercial, Professional
- Product Weight: 274 pounds
- Shipping Dimensions: 38 x 29 x 28 inches
- Flue Diameter: 9 inches
- Gas Connection: 0.75 inches (NPT)
- Elevation Max: 6000 feet.

Q: Is the Raypak R408A suitable for coastal areas?
A: Yes, its corrosion-resistant headers and high-wind resistance make it ideal for coastal environments.
Q: What type of maintenance does this heater require?
A: Regular inspections and cleaning of the burner and heat exchanger are recommended to ensure optimal performance.
Q: Can this heater be used for both pools and spas?
A: Absolutely, it is designed for versatile use in pools, spas, and other commercial water applications.


Pool heaters and heat pumps are not returnable once installed or connected. Double-check fuel type, voltage, and sizing before installation.

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Raypak is a trusted name in pool and spa heating, offering energy-efficient gas heaters and heat pumps built for long-lasting performance. Whether you're warming up your pool for year-round use or extending your swim season, Raypak delivers reliable temperature control. At AquaDoc, we offer a wide selection of Raypak pool heaters to help you enjoy comfortable water—whenever you want it.
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