Description
This Raypak PR406AENX Digital Pool and Spa Heater is 399,000 BTUs, is fueled by natural gas, and has polymer headers and cupronickel tubes. These digital heaters feature ProTek Shield, a cutting-edge module that protects the heat exchanger and extends the heater’s lifespan. ProTek is excellent for use in chlorinated and saltwater pools. ProTek Shield is engineered to withstand the corrosion that naturally occurs over time. When the ProTek Shield is eroding, that means it is working. Plus, this is a replaceable part and will save you money!
This Raypak Digital cupronickel heater model is perfect for saltwater pools. Cupronickel has exceptional corrosion resistance, durability, and anti-bacterial properties. It is widely used in harsh marine environments and electrical components. The Raypak Digital heaters are equipped with an intelligent control system that can be easily integrated into an existing remote system. They also feature a microprocessor-controlled thermostat to set the perfect temperature for your pool or spa. The self-adjusting burner compensates for gas pressure fluctuations, ensuring the heater always burns cleanly and safely.
Standard with every digital pool and spa heater is a set of two-inch slip-fit CPVC water connections. These connections will make your installation secure and effortless. Raypak Digital pool and spa heaters also offer you flexible installation solutions.
Energy-smart Raypak heaters consistently achieve the highest efficiency ratings, and the Raypak Digital is no exception. It exceeds all federal and state standards. And every Raypak gas pool heater is plumbed and test-fired before it is put in the carton. This ensures that your heater will fire right out of the box and continue to give you years of trouble-free operation.
Built to withstand a range of weather conditions, this modern pool heater is the perfect solution for environments that require efficiency, convenience, and versatility. Thanks to a brilliant low-profile design, corrosion-resistant cabinet, cupronickel heat exchanger, and a bevy of advanced engineered materials, enjoying your heater year-round is a breeze.
Elevation on this model is up to 2,000 feet. For higher-elevation digital heaters, please contact our helpdesk for a quote.









