Product Overview

The Raypak B-R406A-EN-X #50 Digital ASME Natural Gas Heater is a high-performance, commercial-grade pool and spa heater engineered for durability, efficiency, and precise temperature control. Designed for demanding environments, this heater features a cupro-nickel heat exchanger, bronze headers, and ASME certification, ensuring long-term reliability even in the harshest applications. With a powerful 399,000 BTU output and Raypak’s signature digital controls, it delivers consistent heating performance while optimizing fuel usage.

Built for commercial facilities, high-end residential applications, and environments requiring ASME compliance, the B-R406A-EN-X combines rugged construction with user-friendly operation.

Ideal For

• Commercial pools and spas requiring ASME-certified equipment

• Hotels, resorts, fitness clubs, and municipal facilities

• High-end residential pools exposed to heavy or frequent use

• Facilities wanting maximum corrosion protection and long service life

• Pools using saltwater, variable water chemistry, or high-flow systems

Key Features

🔥 399,000 BTU Heating Output

Delivers fast, efficient heating for large commercial pools and spas.

🏅 ASME Certified Construction

Built to meet strict commercial standards for safety, durability, and performance.

💧 Cupro-Nickel Heat Exchanger

Enhanced corrosion resistance ideal for fluctuating water chemistry and high-flow systems.

🛡️ 2” Bronze Headers

Commercial-grade header design ensures superior durability and long-term performance.

⚙️ ProTek Shield Module

Advanced protection system that minimizes corrosion within the heater, extending its lifespan.

📟 Digital Control Panel

Simple, accurate temperature control with self-diagnostics and real-time operational feedback.

🔄 Versatile Installation

Low-profile design and multiple gas connection options for seamless integration into new or existing systems.

🚚 Rugged, Long-Lasting Build

Weighs 268 lbs, reflecting durable, high-quality construction built for longevity.

Benefits

• Longer Lifespan: Cupro-nickel exchanger and ProTek Shield technology combat corrosion.

• Commercial-Grade Reliability: ASME certification ensures consistent performance and safety.

• Lower Operating Costs: Digital controls optimize combustion efficiency and fuel usage.

• Easy Maintenance: Diagnostic readouts make troubleshooting straightforward.

• Better Water Compatibility: Handles harsh or variable water conditions without premature wear.

• Fast Heat-Up Times: 399K BTU output ensures rapid temperature recovery for high-usage pools.

Customer-Facing Q&A

Q: Is this heater suitable for commercial pools?

A: Yes. The B-R406A-EN-X is ASME-certified, making it fully compliant for commercial installations such as hotels, gyms, public pools, and aquatic centers.

Q: What makes cupro-nickel different from standard copper?

A: Cupro-nickel is far more resistant to corrosion, erosion, and chemically aggressive water—ideal for saltwater pools or environments with fluctuating water chemistry.

Q: Does this heater work with saltwater pools?

A: Absolutely. The cupro-nickel exchanger, bronze headers, and ProTek Shield module offer excellent corrosion protection in saltwater systems.

Q: How is the temperature controlled?

A: The built-in digital control panel provides precise temperature adjustments and displays system diagnostics for easy operation.

Q: Can this replace an older Raypak unit?

A: In most cases, yes. Raypak heaters share similar footprint and plumbing layouts, making many upgrades straightforward. Always verify gas and plumbing compatibility.

Q: What fuel type does this model use?

A: This model is Natural Gas.