Meet the Raypak Avia® P-R404A-EN-C Low NOx Natural Gas Pool Heater — a high-output, weather-ready solution designed to heat medium to large residential pools quickly and reliably. With 399,000 BTU of heating power, this model accelerates warm-up times so you can enjoy more comfortable swims and extended seasons, even when outdoor temperatures dip.
- 399,000 BTU Heating Capacity delivers rapid water temperature increases for larger pools, reducing wait time between gatherings and maximizing swim time.
- Low NOx Combustion minimizes nitrogen oxide emissions, helping you meet stricter air-quality standards without sacrificing performance.
- Natural Gas Operation provides a cost-effective, reliable fuel source with steady throughput for frequent use.
- Polymer Header Construction offers exceptional corrosion resistance in humid outdoor environments, contributing to longer service life with less maintenance.
- Copper Heat Exchanger ensures highly efficient thermal transfer, translating to faster heating and improved energy efficiency.
- Built-in Wi-Fi Connectivity enables remote monitoring and control from a smartphone or tablet, so you can adjust temperatures, run diagnostics, and schedule heat cycles from anywhere.
- Intuitive Controls provide straightforward temperature settings and quick access to diagnostic information, reducing setup time and confusion during maintenance visits.
- Standard Plumbing Connections include 2" buttress and 3/4" NPT ons for straightforward hookup to common residential pool piping.
- Weather-Resistant Design is built to withstand outdoor poolside conditions, delivering dependable performance year after year.
- Model 018033 with a tested combination of durable materials, proven reliability, and Raypak’s Avia platform.
- Weight: 135 lbs for solid, stable installation with manageable service access.
Ideal for the right pool size and lifestyle
This model is expertly suited for homeowners with medium-to-large residential pools who want fast heating, long-term durability, and simple remote management. If you have a natural gas supply and value the convenience of monitoring temperature and diagnostics from your phone, the Raypak Avia P-R404A-EN-C is a compelling choice. It’s also an excellent option for service professionals who specify high-performance gas heaters that pair durability with modern connectivity.
Why this Raypak Avia model stands out
Beyond raw heat output, this heater integrates features that address real-world needs. The polymer headers resist corrosion far better than traditional metal headers in damp pool environments, reducing maintenance intervals. The copper heat exchanger delivers superior heat transfer efficiency, meaning faster warm-up with potentially lower operating costs. The built-in Wi-Fi is not a luxury add-on; it’s a practical tool for keeping your pool at the perfect temperature without pointless trips to the equipment pad. And with Low NOx combustion, you’re choosing a cleaner, regulation-friendly option that doesn’t sacrifice performance.
Performance and practical use cases
- Quick warm-ups: Perfect for weekend gatherings or spontaneous dips when you want the water inviting within a shorter timeframe.
- Seasonal extension: Keeps pools pleasant into shoulder seasons, helping you maximize outdoor living space.
- Smart control: Set schedules, adjust temps, and monitor diagnostics remotely, which is especially useful if you’re away from home or managing multiple outdoor amenities.
What to know about installation and care
Professional installation is recommended to ensure correct gas connections, venting, electrical setup, and compliance with local codes. Routine care focuses on keeping venting clear, inspecting connections, and verifying the Wi-Fi module remains up to date for reliable remote access. The weather-resistant design helps protect your investment, but periodic checks by a qualified technician will help sustain peak performance over time.
Technical snapshot
- BTU: 399,000
- Fuel: Natural gas
- Heat exchanger: Copper
- Headers: Polymer
- Connections: 2" buttress, 3/4" NPT
- Weight: 135 lbs
- Emissions: Low NOx
- Connectivity: Built-in Wi-Fi
- Model: P-R404A-EN-C (018033)