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RAYPAK AVIA 404A 018039 LOW NOX PROPANE POOL & SPA HEATER – 399K BTU, POLYMER HEADERS, COPPER HEAT EXCHANGER
Model Number: P-R404A-EP-C
Heating Capacity: 399,000 BTU
Fuel Type: Propane (LP)
Heat Exchanger: Copper Fin Tube
Header Material: Glass-Reinforced Polymer
Ignition Type: Digital Direct Spark Ignition (Wi-Fi Enabled)
Elevation Rating: 0–4,500 Feet
The Raypak 018039 AVIA P-R404A-EP-C Low NOx Digital Propane Pool & Spa Heater is the high-output member of Raypak's AVIA platform, delivering a 399,000 BTU input through a durable copper fin tube heat exchanger for large residential pools that need fast recovery times. Built-in Wi-Fi and onboard digital controls give owners full remote access via the Raymote app, and the unit is rated for elevations up to 4,500 feet. Raypak notes the AVIA weighs roughly half what a traditional 400K BTU heater weighs, simplifying both installation and future service work.
Despite its high output, the AVIA 404A installs on a standard 2' x 2' equipment pad and can be rotated on three sides for flexible pad placement. The straight-tube copper heat exchanger design keeps the unit highly serviceable, and the included ProTek Shield replaceable module protects internal components against galvanic corrosion over the life of the heater.
Digital direct spark ignition eliminates the standing pilot, cutting standby propane use and improving safety. The heater is SCAQMD Low NOx certified, California Title 24 compliant, and design-certified to ANSI Z21.56 / CSA 4.7, the current national standard for gas-fired pool and spa heaters.
Key Features
- Built-in Wi-Fi with Raymote app control — no separate control panel required
- ProTek Shield replaceable corrosion-protection module
- Straight-tube copper heat exchanger for maximum serviceability
- Digital direct spark ignition, no standing pilot
- Installs on a standard 2' x 2' equipment pad
- Rotatable water and gas connections on three sides
- Roughly half the weight of a traditional 400K BTU heater
- Stainless steel combustion chamber
- 84% thermal efficiency rating
- SCAQMD Low NOx certified
- California Title 24 compliant
- Smart scheduling and remote diagnostics via mobile app
- Compatible with most pool automation systems
Specifications
| Specification | Details |
|---|---|
| Brand | Raypak |
| Model | P-R404A-EP-C |
| Part Number / SKU | 018039 |
| Fuel Type | Propane (LP) |
| BTU Input | 399,000 BTU |
| Heat Exchanger | Copper Fin Tube |
| Header Material | Glass-Reinforced Polymer |
| Ignition | Digital Direct Spark, Wi-Fi Enabled |
| Controls | Integrated Digital Control with Raymote App |
| Certification | ANSI Z21.56 / CSA 4.7, SCAQMD Low NOx, Title 24 |
| Elevation Rating | 0–4,500 Feet |
| Voltage | 120/240 VAC, 1-Phase, 60Hz |
| Water Connections | 2" (Max Flow 100 GPM) |
| Weight | 135 lbs |
| Warranty | 2 Years Parts & Labor |
What's Included
- Raypak AVIA P-R404A-EP-C pool & spa heater
- Built-in Wi-Fi module for Raymote app control
- ProTek Shield corrosion-protection module
- Owner's manual and installation guide
- Manufacturer's limited warranty registration
For large pools and spas that demand rapid heat-up, the AVIA 404A pairs commercial-grade output with residential-friendly weight and Wi-Fi convenience, making it a heater pool professionals trust for high-capacity replacements.
Learn more at https://www.raypak.com/products/pool-and-spa/residential-pool-and-spa-heaters/avia-pool-and-spa-heater/
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