Raypak Digital P-R406A-EN-X #52 399k BTU Natural Gas Cupronickel Pool Heater

Raypak P-R406A-EN-X #52 399,000 BTU Natural Gas Cupronickel Heater

The Raypak P-R406A-EN-X #52 is a 399,000 BTU natural gas pool and spa heater engineered for maximum heating output at elevations between 6,000 and 8,999 feet. Designed for large residential pools and spas, this model delivers rapid heat-up and consistent temperature control.

Featuring a cupronickel fin tube heat exchanger, this heater offers superior resistance to corrosion and chemical wear, making it well suited for saltwater and high-demand pool environments.

Maximum Heating Performance at High Elevations

The #52 configuration ensures proper combustion and efficient performance at high altitudes. The digital control panel provides precise temperature adjustments, and the electronic ignition system ensures reliable startup without a standing pilot.

The cupronickel heat exchanger extends the life of the heater by protecting against corrosion and scale buildup, reducing long-term maintenance concerns.

Key Features

• 399,000 BTU heating capacity for large pools and spas
• #52 configuration for 6,000 to 8,999 ft elevation
• Natural gas powered for high-output heating
• Cupronickel heat exchanger for enhanced corrosion resistance
• Digital control panel with microprocessor thermostat
• Electronic ignition system with no standing pilot
• Approximately 82% thermal efficiency
• Supports up to 100 GPM water flow
• Wind-resistant atmospheric burner design
• Ideal for saltwater and high-demand systems

About the Raypak Digital Cupronickel Series

Raypak Digital Cupronickel pool heaters are designed for reliable, high-performance heating in residential and light commercial pool applications where added durability is required. Built with a cupronickel fin tube heat exchanger, these heaters offer enhanced resistance to corrosion and chemical wear, making them ideal for saltwater and aggressively treated pool systems. The natural gas configuration provides consistent and cost-effective heating, while Raypak’s proven atmospheric burner design ensures stable outdoor operation. Available in multiple elevation configurations, the Digital Series maintains proper combustion and performance at varying altitudes. With a microprocessor-controlled thermostat, electronic ignition, and fast heat-up capability, Raypak Digital Cupronickel heaters deliver precise temperature control and long-term dependable performance.