Product Overview

The Raypak P-R336A (009218) is a high-output digital natural gas pool & spa heater designed for fast warm-ups and dependable outdoor performance. It features a user-friendly digital control panel, electronic ignition, a copper fin-tube heat exchanger, and corrosion-resistant polymer headers. This model is commonly marketed as 333K BTU(often listed around 332,500 BTU input on spec sheets).

Ideal For

• Medium-to-larger pools and spas that need faster heat-up and strong recovery

• Owners who want simple digital temperature control

• Outdoor installations where durability and reliable ignition matter

Key Features

• Natural Gas fuel type

• 333K class heating performance (commonly listed ~332,500 BTU input)

• Digital controls (LCD) for accurate temperature setting

• Electronic ignition (no standing pilot)

• Copper fin-tube heat exchanger for efficient heat transfer

• Polymer headers to help resist corrosion

• Digital-series heater platform commonly associated with built-in protection features to support longer heater life

Benefits

• Quicker warm-ups for improved comfort and more usable swim time

• Easy operation with a clear digital interface

• Durable build suited for pool environments with corrosion-resistant components

• Great replacement choice when upgrading from an older heater that struggles to maintain temperature

Customer-Facing Q&A

Q: What fuel does this heater use?
A: Natural Gas.

Q: Is it 333,000 BTU or 332,500 BTU?
A: It’s commonly marketed as “333K”, and many spec listings show ~332,500 BTU input.

Q: Does it have electronic ignition?
A: Yes—electronic ignition (no standing pilot).

Q: What type of heat exchanger does it use?
A: A copper fin-tube heat exchanger.

Q: Are the headers polymer?
A: Yes—this model is commonly listed with polymer headers to help resist corrosion.

Specifications

• Brand: Raypak

• Model: P-R336A

• Part Number: 009218

• Fuel Type: Natural Gas

• BTU Class: 333K (commonly listed ~332,500 BTU input)

• Controls: Digital (LCD)

• Ignition: Electronic

• Heat Exchanger: Copper fin-tube

• Headers: Polymer