Raypak Digital 406A Electronic 399,000 BTU Propane Heater

Both water temperature and flow rate inside the heater are controlled to help eliminate condensation, sooting and scale buildup that can shorten the life of a heater. Raypak engineered the Unitherm Governor specifically for pool heater applications, regulating low-temperature incoming water to help reduce condensation. The built-in automatic bypass helps prevent scaling and erosion by balancing the flow going into the heat exchanger.

Model # P-R406A-EP

The sleek and stylish Raypak Digital Gas Pool and Spa Heater features innovative technology designed to keep your pool or spa at the perfect temperature for your enjoyment. Built to withstand various weather conditions, this modern pool and spa heater is the perfect solution for environments requiring efficiency, convenience and versatility.

Thanks to a brilliant low-profile design, corrosion resistant cabinet made of galvanized metal, copper fin tube heat exchanger, and a bevy of advanced-engineered materials, enjoying your heater year round is a breeze.

ProTek Shield

ProTek Shield is a cutting-edge module that protects the heat exchanger and extends the life of your Raypak Digital Gas Pool and Spa Heater. Rest, soak or swim knowing that your pool heater investment can be enjoyed even longer thanks to this innovative, patent-pending technology.

Excellent for use in chlorinated and salt water pools

Engineered to take the brunt of the corrosion that naturally occurs over time (erosion of the ProTek Shield means it’s working!)

Utilizes breakthrough patent pending technology

Compact design

Easy to replace, saving you time and money

More Amazing Features

Heat Exchanger

Our Digital Gas Pool and Spa Heater includes various application options based on fin tube materials including: copper and cupronickel, both available as ASME1.

Cast iron ASME headers provide the strength needed to meet commercial code requirements.

Digital Controls

Equipped with an intelligent control system that can easily be tied into an existing remote system, our heater also features a microprocessor-controlled thermostat for setting the perfect temperature for your pool or spa.

Flexible Installation

Whether upgrading your existing system or adding a new pool or spa to your home, the Raypak Digital Gas Pool and Spa Heater offers you flexible installation solutions.

Bonus: The self-adjusting burner compensates for gas pressure fluctuations, ensuring that the heater will always burn clean and safe.

Both water temperature and flow rate inside the heater are controlled to help eliminate condensation, sooting and scale buildup that can shorten the life of a heater. Raypak engineered the Unitherm Governor specifically for pool heater applications, regul