• Raypak Avia P-R404A-EN-N Pool & Spa Heater – 399,000 BTU | Natural Gas 018045
  • Raypak Avia P-R404A-EN-N
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Raypak

Raypak Avia P-R404A-EN-N Pool & Spa Heater – 399,000 BTU | Natural Gas 018045

Raypak Avia P-R404A-EN-N Pool & Spa Heater – 399,000 BTU | Natural Gas 018045

$4,769.00 USD
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The Raypak Avia 399K BTU heater delivers fast, consistent heating for large pools and spas with the industry’s smartest control system. Additionally, its advanced Wi-Fi platform, durable design, and precise temperature control create a premium heating experience. Specifically, the P-R404A-EN-N model installs cleanly in most equipment pads and brings efficient, year-round comfort.

What makes the Raypak Avia P-R404A-EN-N one of the most reliable natural-gas pool heaters for large residential pools?

The Avia 399K pairs high output with intelligent gas modulation that adapts to wind, temperature, and system flow. Furthermore, its built-in Raymote Wi-Fi control delivers precise temperature management from any device. Therefore, the Raypak Heater helps reduce wasted runtime and fuel costs. ShastaPoolSupply.com supports every Avia heater with expert product guidance. So, you get the correct model and long-lasting performance.

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Raypak Heaters

Key Features

  • 399,000 BTU heating power for fast heat-up times on large pools and attached spas.
  • Raymote Wi-Fi control provides remote access, scheduling, and real-time heater status.
  • NiTek heat exchanger technology enhances durability and maintains efficient heat transfer.
  • Smart combustion system automatically compensates for wind and environmental changes.
  • User-friendly digital control panel simplifies operation and diagnostics.
  • Service-friendly design with easy access to internal components.
  • Natural gas configuration for reliable, high-demand heating performance.

Technical Specifications

  • Model: P-R404A-EN-N
  • Fuel Type: Natural Gas
  • BTU Input: 399,000 BTU/hr
  • Thermal Efficiency: 84%
  • Altitude Rating: 0–10,000 ft
  • Water Connections: 2" (Approx. 101.6 mm)
  • Shipping Weight: 135 lbs (61.2 kg)
  • Installed Weight: 155 lbs (70.2 kg)
  • Application: In-ground pools and spas
  • Ignition: Electronic ignition system
  • Connectivity: Built-in Wi-Fi with Raymote app

Specs

  • Part Number: 018045
  • Manufacturer: Raypak

Why Should I Buy My Raypak Avia Heater from ShastaPoolSupply.com?

Shasta Pool Supply provides authentic Raypak heaters backed by guidance from Arizona’s longest-standing pool professionals. Customers receive fast shipping, competitive pricing, and expert support rooted in decades of hands-on service. Our team ensures you select the right heater, install it correctly, and maintain it for dependable, long-term performance.

Is the Raypak Avia 399K the Right Size and Performance Level for My Pool?

This 399K BTU Avia model is ideal for large pools, high-volume spas, and setups needing fast recovery. Altogether, its adaptive gas control helps maintain efficiency across windy or variable conditions. These common challenges found in exposed equipment pads. For best results, confirm proper gas line sizing and maintain clean filtration.

How Does the Raypak Avia Heater Improve My Pool’s Heating Performance?

The Raypak Avia series uses NiTek heat exchanger technology and advanced combustion management. This technology delivers stable heating in real-world outdoor conditions. Also, its smart controls, corrosion-resistant construction, and intuitive user interface make it a favorite among service professionals and homeowners.

How does the Raypak Avia 399K compare to other large natural-gas pool heaters?

The Avia 399K combines high output with intelligent fuel optimization through its smart gas valve and NiTek exchanger. Many 400K-class heaters offer raw heating power, but Avia improves efficiency, diagnostics, and remote usability. Especially, this gives pool owners more control and lower operating costs. Service pros value the streamlined access and built-in troubleshooting tools that reduce downtime.

Pro Tip:

Use the Raymote app to create heating schedules. Moreover, this reduces burner cycles and saves fuel.

Avia Pool Heater of the Year

Why Did the Raypak AVIA Win “Heater of the Year”?

Customers often ask what makes the Raypak AVIA stand out from other pool heaters. Accordingly, its recent Pool Nation “Heater of the Year” Award offers a clear answer: the AVIA combines smart technology, industry-leading efficiency, and service-friendly engineering. Basically, it delivers up to 84% thermal efficiency, low-NOx performance, and intelligent controls. This simplifies heating, protects internal components, and improves long-term reliability.

The AVIA also prioritizes sustainability. The pool heater offsetts CO₂ emissions equivalent to planting 6,285 trees compared with minimum-efficiency alternatives. Next, its hands-on training programs and technician-approved design further reinforce why the AVIA is recognized as one of the most advanced and dependable heaters on the market today.

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