Raypak P-R406A-EN-X #51 Digital Natural Gas Heater | 399K BTU, Cupro-Nickel Exchanger

Product Overview

The Raypak P-R406A-EN-X #51 Digital Natural Gas Heater (014941) delivers powerful and reliable heating with 360,000 BTU, making it ideal for large residential pools and attached spas. Featuring a cupro-nickel heat exchanger, this model provides exceptional corrosion resistance, especially beneficial for saltwater pools or systems with challenging water chemistry. The integrated ProTek Shield Module adds another layer of internal protection, extending the heater’s lifespan. With Raypak’s digital controls and atmospheric combustion design, this heater ensures consistent operation in variable outdoor conditions.

Ideal For

• Large residential in-ground pools

• Attached spas needing fast, high-output heating

• Saltwater pools (cupro-nickel exchanger is highly durable)

• Environments with harsh water chemistry or high mineral content

• Installations exposed to wind or fluctuating outdoor weather

• Homeowners seeking long-term reliability with low maintenance requirements

Customer Q&A

Is this heater good for saltwater pools?

Yes — the cupro-nickel heat exchanger is corrosion-resistant and ideal for saltwater installations.

How fast can this heater warm my pool or spa?

With 360K BTU, this model provides rapid heat-up for large pools and extremely quick spa heating.

What does the ProTek Shield Module do?

It protects internal components from corrosion, helping the heater last longer, especially in demanding water conditions.

Does it work with pool automation systems?

Yes — the unit integrates easily with most major pool automation platforms via standard two-wire connections.

Is professional installation required?

Yes. Gas, electrical, and venting connections must be performed by a licensed professional to ensure safe and correct operation.