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
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Larger pools and spas needing rapid heat-up and strong temperature recovery
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Owners who want digital temperature control with operational monitoring/diagnostics
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Outdoor equipment pads where high-wind resistance and durable construction matter
Key Features
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399,000 BTU heating performance (propane / LP)
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Digital LCD controls for accurate temperature setting
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Electronic ignition (no standing pilot)
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Copper fin-tube heat exchanger for efficient heating
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Polymer headers for improved corrosion resistance
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Digital series commonly associated with built-in protection features that help extend exchanger life
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Designed for high-wind outdoor operation
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2" water connections commonly listed for this model
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Commonly listed/configured for 0–2,000 ft elevation applications
Benefits
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Faster warm-ups for more comfortable swim and spa time
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Consistent operation with clear digital control and service diagnostics support
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Durable, corrosion-resistant components suited for pool environments
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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
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Brand: Raypak
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Model: P-R406A-EP-C
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Part Number: 009227
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Fuel Type: Propane (LP)
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BTU Input: 399,000 BTU (399K class)
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Controls: Digital (LCD)
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Ignition: Electronic
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Heat Exchanger: Copper fin-tube
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Headers: Polymer
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Water Connection (commonly listed): 2"
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Typical Elevation Listing: 0–2,000 ft
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Approx. Weight (commonly listed): ~260 lbs