Need help choosing this Raypak heater? Call 725-205-1783 or email sales@poolsupplydepot.net with your existing heater model, fuel type, installation ZIP code and equipment-pad photos. We can help confirm the replacement and shipping or freight options. Local pickup is available in Henderson, Nevada; confirm availability before visiting.

Product Overview

The Raypak P-R406A Digital Natural Gas Heater is a high-output residential pool and spa heater designed for powerful, dependable natural gas performance. With a 399,000 BTU heating capacity, digital controls, and durable Raypak construction, this heater is a strong choice for homeowners who want fast heat-up times and reliable temperature control for larger residential pools and spas.

This natural gas heater features electronic ignition, a copper heat exchanger, polymer headers, a corrosion-resistant cabinet, and Raypak’s ProTek Shield technology to help protect key components and support long service life. Its digital control system makes temperature adjustment simple, while remote compatibility allows the heater to connect with select pool automation and control systems.

Ideal For

This heater is ideal for residential pool owners looking for a powerful natural gas heater with easy digital operation and dependable high-capacity heating performance.

Recommended for:

• In-ground pools and attached spas
• Larger residential pools
• Pool and spa combinations
• Outdoor equipment pad installations
• Natural gas pool heating systems
• Customers looking for faster heat-up times than smaller BTU models
• Customers replacing an older Raypak 406A-series heater

Key Features

Digital Control Panel
The easy-to-use digital interface allows simple temperature adjustment and clear heater operation.

399,000 BTU Heating Performance
Provides powerful heating capacity for residential pools and spas, helping reduce heat-up time compared to lower BTU models.

Natural Gas Operation
Designed for use with natural gas fuel systems.

Electronic Ignition
Starts efficiently without the need for a standing pilot.

Copper Heat Exchanger
Delivers effective heat transfer for standard residential pool applications.

Polymer Headers
Help resist corrosion and support long-term durability.

Corrosion-Resistant Cabinet
Built to withstand outdoor pool equipment environments.

ProTek Shield Technology
Helps protect the heat exchanger and internal components from corrosion.

Remote Compatible
Can be connected to compatible 2-wire or 3-wire remote systems for added convenience.

Benefits

The Raypak P-R406A gives pool owners reliable gas heating with one of the highest BTU outputs in the Raypak residential digital heater lineup. Its 399,000 BTU capacity makes it a practical choice for larger pools, attached spas, and customers who want quicker heat-up performance.

The natural gas design provides strong, consistent heat, while the digital control system makes everyday operation simple. Durable features such as the copper heat exchanger, polymer headers, corrosion-resistant cabinet, and ProTek Shield technology help support long-term performance in outdoor pool environments.

For customers replacing an existing Raypak 406A heater, this model may also provide a familiar installation footprint and operating experience.

Specifications

Customer-Facing Q&A

Is this heater natural gas or propane?
This listing is for the natural gas Raypak P-R406A model.

Is this a digital heater?
Yes. The Raypak P-R406A includes a digital control system for easy temperature adjustment and operation.

Does this model have electronic ignition?
Yes. This model uses electronic ignition.

Is the heat exchanger copper or cupro-nickel?
This standard 009219 model uses a copper heat exchanger. It is not the cupro-nickel version.

Can this heater be used with saltwater pools?
This model may be used with properly balanced pool water. For saltwater pools or more demanding water conditions, many customers often prefer a cupro-nickel heat exchanger model for added corrosion resistance.

Does this heater require professional installation?
Yes. Gas pool heaters should be installed by a licensed plumber, qualified pool professional, or gas appliance technician according to local code requirements.

Can this heater be installed indoors?
This model is commonly used for outdoor installation. Indoor installation requires proper venting and must follow the manufacturer’s instructions and local code requirements.

Is this heater Low NOx compliant for California SCAQMD areas?
This standard model may not meet all Low NOx requirements in certain California jurisdictions. Customers in areas with strict emissions rules should confirm local code requirements before purchasing.