Raypak 337A Low NOx Natural Gas Pool Heater CuNi 332K BTU | RAY-15-0320

Raypak 337A Low NOx Natural Gas Pool Heater CuNi 332K BTU | RAY-15-0320

Raypak 337A Low NOx natural gas pool heater with 332K BTU output, cupronickel heat exchanger, bronze headers, and digital controls.

Features

• 332,500 BTU heating output for rapid pool and spa heat-up.
• Cupronickel heat exchanger offers enhanced corrosion resistance.
• #26 bronze headers improve durability and water flow reliability.
• Low NOx combustion design meets emissions regulations.
• Digital control interface simplifies temperature management.
• Natural gas burner system provides dependable heating performance.

Description

The Raypak 337A Low NOx Digital Natural Gas Heater delivers strong heating performance with 332,500 BTU output, making it well suited for mid-to-large residential pools and spa combinations.

This model features a cupronickel heat exchanger that provides improved corrosion resistance compared to standard copper designs. The CuNi construction helps protect against aggressive water chemistry, salt systems, and high-flow pool equipment setups.

The #26 bronze header configuration enhances system durability and reliability. Combined with Raypak’s proven atmospheric burner design, the heater provides stable heating performance and dependable operation.

A digital control interface allows users to easily adjust temperatures and monitor system operation. The Low NOx combustion system helps meet emissions requirements in regulated regions.

Built with Raypak’s rugged cabinet design and service-friendly layout, the 337A heater is engineered for long-term reliability in demanding pool environments.

Pro Tip

If your pool uses a saltwater chlorinator, a cupronickel heat exchanger provides better long-term resistance to corrosion than standard copper heat exchangers.

Installation Tips

Install the heater on a level equipment pad with proper natural gas supply and ventilation clearances. Ensure water flow requirements are met and verify electrical and automation compatibility prior to installation.

We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:

• Pentair Warranty
  
• A&A (Pentair In-Floor) Warranty
  
• Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
  
• Paramount Warranty
  
• BlueSquare Warranty
  
• Hayward Warranty
  
• All Other Manufacturer Warranties
  

Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.