Raypak LoNOx ASME B-R407A-EN-X #26 399k BTU Natural Gas Cupronickel Pool Heater

Raypak B-R407A-EN-X #26 399,000 BTU Natural Gas Cupronickel Heater

The Raypak B-R407A-EN-X #26 is a 399,000 BTU natural gas pool and spa heater engineered for maximum heating performance in low NOx compliant residential and commercial applications. Built with a cupronickel fin tube heat exchanger, this model provides superior resistance to corrosion and chemical wear, making it ideal for saltwater and demanding pool environments.

As part of Raypak’s Professional Series, this heater features a rugged cabinet and upgraded internal components designed for long-term outdoor durability. It delivers powerful and consistent heating while meeting strict emission standards.

Maximum Output Low NOx Heating with Cupronickel Protection

The #26 configuration ensures compliance with low NOx emission requirements while maintaining efficient combustion and stable operation. The digital control panel allows for precise temperature adjustment, while the electronic ignition system ensures dependable startup.

The cupronickel heat exchanger extends the lifespan of the heater by protecting against corrosion and erosion in aggressive water conditions.

Key Features

• 399,000 BTU heating capacity for large pools and spas
• #26 low NOx configuration for emission compliance
• Natural gas powered heater
• Cupronickel heat exchanger for enhanced durability
• Professional Series construction for long-term reliability
• Digital control panel with microprocessor thermostat
• Electronic ignition system with no standing pilot
• Approximately 82% thermal efficiency
• Durable cabinet for outdoor installation
• Ideal for high-demand regulated pool systems

About the Raypak LoNox ASME Series

Raypak LoNox ASME pool heaters are engineered for commercial-grade performance while meeting strict low NOx emission requirements for environmentally regulated regions. Designed in accordance with ASME standards, these heaters feature heavy-duty construction and robust internal components built to handle continuous operation and higher pressure systems. Available with both copper and cupronickel heat exchangers, the LoNox ASME Series offers flexibility for standard and saltwater pool environments, with cupronickel providing enhanced resistance to corrosion and chemical wear. The natural gas configuration delivers efficient and consistent heating, while Raypak’s advanced low NOx burner system reduces emissions without sacrificing performance. With precise digital controls, electronic ignition, and dependable operation, the LoNox ASME Series is an ideal solution for commercial and large residential pool applications in regulated markets.