Ultra-Low NOx Emissions: Built with a forced-draft combustion system, this heater burns natural gas much cleaner than standard atmospheric models. It is fully certified to meet the strictest environmental codes across the United States, making it legally compliant for installation in highly regulated areas.
Robust 336,000 BTU Power: Providing massive thermal lift, this unit is engineered for rapid temperature gains in large residential pools and attached spas, ensuring you get fast, efficient heating without extended wait times.
Microprocessor-Controlled Thermostat: The intuitive digital display allows you to set your pool and spa temperatures independently to within one degree. The system also features constant self-diagnostics to alert you to any operational issues, making troubleshooting fast and simple.
Reliable Electronic Ignition: Features a robust spark-to-pilot ignition system that only lights when there is a call for heat. This eliminates the gas waste of a standing pilot light and ensures the heater remains highly efficient and functional even in high-wind conditions.
Standard Copper Heat Exchanger: Built with high-quality integral copper fin tubes, this heat exchanger provides maximum heat transfer and an impressive 82% thermal efficiency. The single-piece polymer header design ensures smooth water flow and minimizes the risk of internal leaks.
PolyFlo Integrated Bypass: Raypak’s patented bypass design balances the water flow through the heat exchanger automatically. This prevents condensation and scale buildup, protecting the heater's internal components from premature wear.
ProTek Shield Technology: Includes a specialized, replaceable module designed to protect the heat exchanger from the damaging effects of galvanic corrosion (electrolysis), providing a critical layer of defense for the unit's most vital parts.
Non-Corrosive Cabinet Construction: The heater is housed in a polyester-coated, galvanized steel cabinet built to resist rust and UV fading. Its wind-resistant design ensures the internal components stay protected even in exposed or coastal outdoor environments.
Specs
|
|
| Heat Output |
336,000 BTU |
| Fuel Type |
Natural Gas |
| Emissions Rating |
Low NOx (Compliant with CA/TX codes) |
| Header Material |
Polymer |
| Heat Exchanger |
Copper (Standard Durability) |
| Ignition Type |
Digital Electronic (Spark-to-Pilot) |
| Water Connection |
2" CPVC Unions |
| Efficiency Rating |
82% |
| Model Number |
P-R337AL-EN-C / 009242 |
Notes
Professional Setup Required: To ensure safety and validate the manufacturer’s warranty, this natural gas heater must be installed by a licensed HVAC or pool professional. Because it is a Low NOx unit, it relies on a built-in blower motor for forced-draft combustion, requiring precise electrical (120V or 240V) and proper gas line connections (typically 1.25 inches for a heater of this size). Adequate venting and clearance are critical for safe and efficient operation.
