Raypak ASME B-R336A-EN-X #52 332k BTU Natural Gas Cupronickel Pool Heater

Raypak B-R336A-EN-X #52 332,000 BTU Natural Gas Cupronickel Heater

The Raypak B-R336A-EN-X #52 is a 332,000 BTU natural gas pool and spa heater designed for high-performance heating in elevated environments. Built for medium to large pools, this model delivers fast heat-up and consistent temperature control using a cupronickel fin tube heat exchanger.

As part of Raypak’s Professional Series, this heater features a rugged cabinet and upgraded internal components engineered for long-term outdoor durability. It provides reliable performance in demanding residential and commercial applications.

High Elevation Heating with Strong Output and Durability

The #52 configuration is engineered for elevations between approximately 6,000 and 8,999 feet, ensuring proper combustion and efficient operation. The digital control system allows for precise temperature management, while the electronic ignition system ensures reliable startup.

The cupronickel heat exchanger offers extended lifespan and protection in saltwater and chemically aggressive pool environments.

Key Features

• 332,000 BTU heating capacity for medium to large pools and spas
• #52 configuration for high elevation use
• Natural gas powered heater
• Cupronickel heat exchanger for corrosion resistance
• Professional Series construction for durability
• Digital control panel with microprocessor thermostat
• Electronic ignition system with no standing pilot
• Approximately 82% thermal efficiency
• Wind-resistant cabinet for outdoor installations
• Ideal for high-demand pool systems

About the Raypak ASME Series

Raypak ASME Series pool heaters are engineered for commercial-grade performance and long-term reliability in high-demand pool and spa applications. Constructed in accordance with ASME standards, these heaters feature heavier-duty components and thicker heat exchangers designed to withstand continuous operation and higher system pressures. Available in both copper and cupronickel configurations, the ASME Series offers flexibility for standard and saltwater pool environments, with cupronickel models providing enhanced resistance to corrosion and chemical wear. The natural gas configuration delivers consistent, cost-effective heating, while Raypak’s proven atmospheric burner design ensures stable outdoor performance. With precise digital controls, electronic ignition, and fast heat-up capability, the ASME Series provides dependable, high-output heating for commercial and large residential pool systems across a range of elevations.