Product Overview

The Raypak P-R406A (009227) is a high-output digital propane (LP) pool & spa heater designed for fast warm-ups and reliable outdoor performance. It features an easy-to-use digital LCD control panel, electronic ignition, corrosion-resistant polymer headers, and a proven copper fin-tube heat exchanger for efficient heat transfer. This model is commonly listed as 399,000 BTU input (often marketed as “399K”).

Ideal For

• Larger pools and spas needing rapid heat-up and strong temperature recovery

• Owners who want digital temperature control with operational monitoring/diagnostics

• Outdoor equipment pads where high-wind resistance and durable construction matter

Key Features

• 399,000 BTU heating performance (propane / LP)

• Digital LCD controls for accurate temperature setting

• Electronic ignition (no standing pilot)

• Copper fin-tube heat exchanger for efficient heating

• Polymer headers for improved corrosion resistance

• Digital series commonly associated with built-in protection features that help extend exchanger life

• Designed for high-wind outdoor operation

• 2" water connections commonly listed for this model

• Commonly listed/configured for 0–2,000 ft elevation applications

Benefits

• Faster warm-ups for more comfortable swim and spa time

• Consistent operation with clear digital control and service diagnostics support

• Durable, corrosion-resistant components suited for pool environments

• Great upgrade choice when replacing a smaller heater and needing quicker recovery

Customer-Facing Q&A

Q: What fuel does this heater use?
A: This model uses propane (LP gas).

Q: Does it have digital controls?
A: Yes—this heater includes a digital LCD control panel for setting and monitoring temperature.

Q: Does it use a standing pilot?
A: No—this model uses electronic ignition.

Q: What kind of heat exchanger does it have?
A: A copper fin-tube heat exchanger for efficient heat transfer.

Q: Are polymer headers a good thing?
A: Yes—polymer headers help improve corrosion resistance, which can be beneficial in pool environments.

Specifications

• Brand: Raypak

• Model: P-R406A-EP-C

• Part Number: 009227

• Fuel Type: Propane (LP)

• BTU Input: 399,000 BTU (399K class)

• Controls: Digital (LCD)

• Ignition: Electronic

• Heat Exchanger: Copper fin-tube

• Headers: Polymer

• Water Connection (commonly listed): 2"

• Typical Elevation Listing: 0–2,000 ft

• Approx. Weight (commonly listed): ~260 lbs