Raypak Digital P-R336A-EN-X #51 332k BTU Natural Gas Cupronickel Pool Heater

Raypak P-R336A-EN-X #51 332,000 BTU Natural Gas Cupronickel Heater

The Raypak P-R336A-EN-X #51 is a 332,000 BTU natural gas pool and spa heater built for high-performance heating at elevations between 2,000 and 5,999 feet. Designed for medium to large residential pools, this model provides rapid heat-up and consistent temperature control.

Featuring a cupronickel heat exchanger, this heater offers enhanced resistance to corrosion and chemical wear, making it a strong choice for saltwater pools and challenging environments.

High Output Heating with Elevation Optimization

The #51 configuration ensures efficient combustion and stable performance at moderate elevations. The digital control panel provides precise temperature control, and the electronic ignition system ensures reliable operation.

The cupronickel heat exchanger extends equipment life by protecting against erosion and chemical damage, making this unit ideal for long-term use.

Key Features

• 332,000 BTU heating capacity for medium to large pools and spas
• #51 configuration for 2,000 to 5,999 ft elevation
• Natural gas powered heater
• Cupronickel heat exchanger for corrosion resistance
• Digital control system with microprocessor thermostat
• Electronic ignition system with no standing pilot
• Approximately 82% thermal efficiency
• Supports up to 100 GPM water flow
• Durable outdoor cabinet construction
• Ideal for saltwater and demanding applications

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.