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  • Raypak AVIA natural gas heater front view
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Raypak 018045 Model R404A Avia® Pool & Spa Heater Natural Gas 399 MBTUH 120/240V

Raypak 018045 Model R404A Avia® Pool & Spa Heater Natural Gas 399 MBTUH 120/240V

$4,499.99
$5,401.99 $4,499.99
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Raypak Pool Equipment

Smart, efficient, and durable, the Raypak AVIA 399K BTU natural gas pool and spa heater offers advanced Wi-Fi control and corrosion-resistant performance.
Product Details

Managing your pool or spa has never been more convenient with the Raypak AVIA 018045, which features built-in Wi-Fi and app-based control via the Raymote™ system for seamless remote operation.

Designed for superior performance and durability, this natural gas heater delivers 399,000 BTUs of reliable heat with compatibility for both residential and commercial applications.

Its advanced NiTek heat exchanger offers unmatched corrosion resistance—300% more than copper and 200% more than cupronickel—making it ideal for harsh water conditions.

A compact cabinet size and lightweight build make installation flexible, while the smart control system eliminates the need for a separate pool automation panel.

Built for efficiency and reliability, this model supports wide flow rates between 40 and 100 GPM, helping optimize water circulation in a range of systems.

AI Review Summary ✨

⭐⭐⭐⭐⭐
Buyers are impressed by the heater’s high performance and energy-efficient design.

Pool owners enjoy the convenience of app-based controls that make temperature adjustments quick and easy.

Many appreciate the compact size and easy installation that fits in tight equipment spaces.

Reviewers highlight the heater’s NiTek exchanger for delivering long-lasting durability even in tough water environments.

Customers find excellent value in the advanced tech features typically found in more expensive models.
Features
  • Wi-Fi Enabled Control: Integrated Raymote™ system for remote operation via smartphone or tablet
  • NiTek Heat Exchanger: 300% more erosion-resistant than copper and 200% more than cupronickel
  • High Heating Capacity: 399,000 BTU input for powerful and consistent performance
  • Dual Voltage Compatibility: Operates on 120V or 240V for flexible installation
  • Wide Flow Rate Range: Efficient operation between 40–100 GPM
  • Space-Saving Design: Compact dimensions for easier installation
  • Versatile Applications: Suitable for both residential and commercial use
  • Natural Gas Fuel: Clean-burning and cost-efficient heating solution
  • No Additional Panel Needed: Direct connection to the Raymote app eliminates control panel requirements
  • Durable Cabinet: Built to withstand outdoor conditions with red and gray finish
Specifications
  • Brand: Raypak
  • Model: AVIA® 018045 P-R404A-EN-N
  • BTU Input: 399,000 BTU
  • Amperage: 1.6 A
  • Voltage: 120V / 240V
  • Fuel Type: Natural Gas
  • Flow Rate: 40–100 GPM
  • Cabinet Dimensions: 29" D x 30.38" H x 16.92" W
  • Weight: 135 lbs
  • Application: Pool, Spa
  • Use Case: Commercial, Residential
  • Shipping Dimensions: 38" x 26" x 34"
  • Phase: Single
  • Electrical Input: 120V
  • UPC: 84089109922
User Guides
Frequently Asked Questions

Q: Can I control this heater from my phone?
Yes, the built-in Wi-Fi and Raymote™ app allow you to monitor and control your heater remotely from your smartphone or tablet.

Q: Is the heat exchanger resistant to corrosion from harsh water conditions?
Absolutely, the NiTek heat exchanger is specially engineered to be 300% more erosion-resistant than standard copper and 200% more than cupronickel.

Q: Does this unit require a separate control panel for automation?
No, the AVIA integrates directly with the Raymote™ system, so no external control panel is needed.
Warranty
Warranty URL: https://www.raypak.com/registration_warranty/
View full details
Disclaimer:
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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