By Raypak



Model # 009223

Warranty 1 Year

Manufacturer Code P-R406A-EN-C #51

Alternate Part #'s 009223, P-R406A-EN-C #51, RAY009223

Product Description

This heater uses Natural Gas and is the required model if you live in an elevation between 2000 - 6000 ft.


  • Digital control with liquid crystal display (LCD) for temperature selection and heater settings

  • Capron resin headers prevent rust stains from harming pool surface

  • Plumb directly from provided 2" PVC threaded union

  • Smart microprocessor controls diagnostic read-out and continuously monitors operating status

  • Completely field serviceable

  • Small footprint

  • High efficiency

  • Guaranteed high wind reliability

  • Looks smart and works smart

  • 1 Year Warranty

  • Thermal Efficiency of 83% 



California Customers Please Note:  South Coast Air Quality Management District ( SCAQMD) Area of Jurisdiction REQUIRES a Low Nox Heater be installed.  The following 6 California Counties are affected:  Los Angeles, San Bernardino, Ventura, Orange, Riverside, & Kern. Installing a non-compliant heater in these counties will void the manufacturer's  warranty and could result in a fine from your local code enforcement.  

This Limited Warranty does NOT apply; 
1. if the product has been moved from its original place of installation, or if the original 
owner no longer owns the property where the original installation was made; 
2. if the product is not properly installed with a pool or spa by a qualified licensed installer in 
accordance with applicable local codes and ordinances, good trade practices, and the 
manufacturer’s installation instructions; 
3. if the rating plate(s) or serial number(s) are altered or removed; 
4. if the product is modified in any way, or non-factory authorized accessories or other 
components are used in conjunction with the product; 
5. to damage, malfunctions or failures resulting from failure to properly install, operate or 
maintain the product in accordance with the manufacturer’s instructions; 
6. to damage, malfunctions or failures from abuse, act of nature, accident, fire, flood, freeze, 
lightning or the like; 
7. to damage, malfunctions or failures resulting from [or due to] connected system control 
8. performance problems caused by improper sizing of the heater or electric service 
voltage, wiring or fusing; 
9. use of any attachment, including any energy saving device not authorized by the 
10. to damage, malfunctions or failures from misuse or neglect, including but not limited to, 
freeze-ups, operating the heater with the cabinet door off, having flow restrictions or 
obstructions between the heater outlet and the pool/spa, or not maintaining a proper 
chemical balance (PH level must be between 7.4 and 7.8 and total alkalinity between 100 
and 150 PPM. Total dissolved solids (TDS) must be no greater than 3000 PPM)

Product Specifications

406,000 BTU
2,000 - 6,000 ft.
Heater Type:
Natural Gas
Heat Exchanger:

?     Asked on 1/16/2012by Guest

Will a gas heater operate at the low speed of a dual speed motor?

A  Answered on 1/16/2012 by InyoPools Product Specialist Patrick P.

Probably not - Most gas heater will shut off at low GPM levels (20-40) to keep the heater cores from overheating - 20 for 200 BTUs, 40 for 400 BTUs. Depending on your pool system you might get these GPM levels at the low speed but generally these heaters must be run at the motor's high speed.

?     Asked on 10/10/2012by Guest

What is the difference between an Electronic and Millivolt ignition?

A  Answered on 10/10/2012 by InyoPools Product Specialist Patrick P.

The basic answer is that Millivolt is the old style of ignition, using a standing pilot light. While the electronic ignition uses a spark start system like a gas grill. Electronic ignitions are more efficient in gas usage and also are better suited for high wind areas where a pilot light might get extinguished.

?     Asked on 8/16/2018by Sarah

MODEL # 009223 when I downloaded the manual it confused me. is this heater able to be outside and does it come with the correct top (as it says in the manual) to be outside? Is this heater electric ignition so I don't have to light a pilot light? Does this heater come with the overflow part? Is the warranty good if I have a certified electrician hook it up or does it have to be a raypak installer? Thank you a head of time!

A  Answered on 8/20/2018 by InyoPools Product Specialist Lennox H.

Hi, Sarah. Yes, this can be installed and includes the Pagoda Top for outside installation. The ignition is electronic, I'm not sure of the overflow part that you're referring too. The warranty will be intact if an electrician who is able to do the plumbing and gas connection installs the unit. 

?     Asked on 10/3/2022by David Rosequist

Hello, I would just like to confirm heaters are in stock and ready to ship? Specifically, what would be the time frames for shipping once ordered? Or any other pertinent information we may need prior to ordering? Thank You

A  Answered on 10/3/2022 by InyoPools Product Specialist Craig C.

Hello David.  The RP2100 Digital Heater - R406A - 2,000'-6000' - Copper - Natural Gas - P-R406A-EN-C #51 is in stock and available for shipping.  The Raypak RP2100 exceeds the maximum Size and Weight parameters of UPS and must be shipped via Common Carrier.  The normal timeline for Common Carrier deliveries is 7-10 Business days once the order has been placed.  Attached please find a copy of the INYO Pools Shipping Policy.  Please note the Section - Common Carrier Shipments for detailed information concerning this delivery method. 


Review Summary

 (Average 5  out of 5 stars)
1 Ratings
5 star:
4 star:
3 star:
2 star:
1 star: