Raypak Digital 406K BTU Natural Gas Pool Heater - Cupro Nickel - P-R406A-EN-X | 014941

The Raypak P-R406A-EN-X is the highest-capacity residential heater in the Raypak lineup, upgraded with a commercial-grade Cupro-Nickel heat exchanger. This model is specifically engineered for large-scale luxury pools, high-volume spas, and environments with salt-chlorine generators or aggressive water chemistry. With a massive 406,000 BTU output, the 014941 provides the fastest possible heat-up times, ensuring your pool or spa is ready for use in a fraction of the time required by smaller units, while offering the maximum corrosion protection available.

Features

Ultra-Durable Cupro-Nickel Heat Exchanger: Constructed from a premium copper-nickel alloy, this heat exchanger is significantly more resistant to erosion and corrosion than standard copper. It is the gold standard for salt-water pools and high-flow systems, providing a much longer service life under harsh conditions.

Unmatched Heating Speed: Delivering 406,000 BTUs of raw power, this unit is designed for rapid temperature gains in the largest residential pools. It is the perfect solution for "on-demand" heating of large attached spas, even in the dead of winter.

Microprocessor-Controlled Thermostat: The intuitive digital display allows you to set your pool and spa temperatures independently to within one degree. The system features constant self-diagnostics to monitor performance and alert you to any issues immediately.

Reliable Electronic Ignition: Features a robust "spark-to-pilot" ignition system that only lights when there is a call for heat. This modern design eliminates the need for a standing pilot light, saving on gas costs and preventing the flame from blowing out in high-wind conditions.

PolyFlo Integrated Bypass: Raypak’s patented bypass design balances the water flow through the heat exchanger automatically. This prevents condensation and scale buildup, protecting the heater's internal components and maintaining peak thermal efficiency.

ProTek Shield Technology: Includes a specialized, replaceable module designed to protect the heat exchanger from the damaging effects of galvanic corrosion (electrolysis), which is a leading cause of heater failure in modern pool environments.

Non-Corrosive Cabinet Construction: The heater is housed in a polyester-coated, galvanized steel cabinet that is built to resist rust, UV fading, and harsh weather. Its wind-resistant design ensures the burner stays functional even in difficult outdoor or coastal environments.

Specs

Notes

Professional Setup Required: Due to its high BTU rating, this heater requires precise gas line sizing (typically 1.25" to 1.5" depending on the distance from the meter) and proper venting. It must be installed by a licensed HVAC or pool professional to ensure safety and to validate the manufacturer's warranty.