RP2100 Digital Heater - R406A - Copper - Natural Gas - P-R406A-EN-C #50



Model # 009219

By Raypak

  4.77 Average  



Model # 009219

Warranty 1 Year

Manufacturer Code P-R406A-EN-C #50

Alternate Part #'s 009219, P-R406A-EN-C #50, PR406AENC, RAY009219

Product Description

Think about being able to use your pool or spa at the perfect comfort level even when Fall arrives...or when the first chill of Winter is felt in the wind...or in the Spring or Summer when evenings can turn chilly in a minute!  Helping you get more enjoyment from your pool or spa is the smart idea behind the Raypak heaters.


  • 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

  • Thermal Efficiency of 83% 

  • 1 Year Warranty

Elevation: 0 Ft. – 2000 Ft. Click Here for High Altitude Pool Heaters


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.    

Click here for RayPak Low Nox Heaters


Raypak Pool Heater DimensionsRaypak Pool Heater Dimensions

Raypak Heater Dimensions


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
Digital Readout:
0-2,000 ft.
Heat Exchanger:
Special Feature:
Standard Emission

?     Asked on 5/6/2020 by steve

is this the current model with the shield or an older unit?

A  Answered on 5/7/2020 by InyoPools Product Specialist Alex V.

Steve, This would be the current model with the display cover. 

?     Asked on 3/24/2020 by

Can I use a LoNox PCB control circuit board on a Raypak P-R406A-EP-C unit?

A  Answered on 4/1/2020 by InyoPools Product Specialist Lennox H.

Hi. The Standard Models and the Low NOx models use the same P.C. Board/Control  - 013464F just wired differently. 

?     Asked on 2/10/2020 by mike

do I need fireman switch?

A  Answered on 2/11/2020 by InyoPools Product Specialist Lennox H.

Hi, Mike. A fireman switch is recommended if you have a mechanical timer.

?     Asked on 8/12/2019 by

how do you open the front panel on the polo heater?

A  Answered on 8/14/2019 by InyoPools Product Specialist Michelle B.

Hello, Unfortunately, we do not carry the "polo" heaters. So we would not know. We recommend contacting the manufacturer on this question. You can reach them at

?     Asked on 4/12/2019 by paula

yes i have model P-R267A-ENC Raypak 406A atmospheric that has die. i have 16,000 gal and it's 16x32 oval pool. can i replace the old unit with this one.

A  Answered on 4/12/2019 by InyoPools Product Specialist Lennox H.

Hi, Paula. You will need the Raypak LoNox Heater 267A NG ELE - P-R267ENC26.

?     Asked on 4/7/2019 by David Moralesa

Do you deliver on Saturday

A  Answered on 4/9/2019 by InyoPools Product Specialist Michelle B.

Hello, We deliver freight items on business days only.

?     Asked on 4/1/2019 by Tom

I have a 6 year old Jandy LXi 400,000 BTU natural gas in Florida that continues to anoyingly blow multiple fusible links. I want to replace with a Raypak P R406 EN C. Am I on the right track? Any install differences/problems? I will have a Raypak installer here to install. Thanks!

A  Answered on 4/16/2019 by InyoPools Product Specialist Joe S.

Good afternoon, the Raypak Raypak RP2100 Heater 406,000 BTU NG ELE part number 009219 would be a great switch from a Jandy 400. The install should be pretty simple. With call Natural Gas heaters we would recommend you check with the installer or gas company that both units use the same sized gas line.

?     Asked on 3/29/2019 by

I own model P-406A-EP-X Raypak pool heater and am needing to purchase the rear header component and have found one at a pool supply company with part no. 006707F, they have a no return policy and prior to purchasing would like to know if that part is compatible with my model?


A  Answered on 3/31/2019 by InyoPools Product Specialist Lennox H.

Hi. This Return Header Kit, RP2100, Plastic - 006707F is compatible with your model unit.

?     Asked on 1/2/2019 by brian showalter

have rp2100 p-r 405a-en will this work

A  Answered on 1/3/2019 by InyoPools Product Specialist Kevin G.

Yes, this would be the best replacement for your current heater.

?     Asked on 11/21/2018 by Gerald Matthews

when you refer to a salt water pool, what exactly do you mean? I have a pool that has a chlorine generator that uses salt but i'm thinking that's something different. However after 5 years of use my 406A- EN-C is completely rusted inside. Should it have been installed with the copper/nickel unit instead just copper?

A  Answered on 11/28/2018 by InyoPools Product Specialist Lennox H.

Hi, Gerald. A saltwater pool is considered a pool that uses a system that converts the salt in the water to chlorine. Yes, I'll recommend that you replace your unit or the heat exchanger with the cupro-nickel model P-R406A-EN-X

?     Asked on 9/14/2018 by Dinesh

How do I turn Remote mode off?

A  Answered on 9/15/2018 by InyoPools Product Specialist Lennox H.

Hi, Dinesh. To activate or deactivate the Remote mode, Press and hold all three buttons for 5 to 7 seconds.. 

?     Asked on 7/20/2018 by

need to replace aP-M407A-EN-C would this suffice? Do they share the same dimensions? It looks to be quite similar, thank you

A  Answered on 7/20/2018 by InyoPools Product Specialist Lennox H.

Hi. This unit is not a LoNox model, you will need Part # 009243. The dimensions are similar. 

?     Asked on 7/16/2018 by Ryan

I currently have a Raypak heat pump that needs to be replaced. I am considering converting to a Raypak 406000 BTU propane heater. Other than running a propane line to the heater is there anything else I need to consider? Will the electrical hook up be the same?

A  Answered on 7/21/2018 by InyoPools Product Specialist Lennox H.

Hi, Ryan. Other than running a gas line and new plumbing you will need a Check Valve, and Fireman Switch - 156T4042A. The same electrical can be used. 

?     Asked on 7/10/2018 by catherine

I need to replace model P-M406A-EN-C Would this be appropriate?

A  Answered on 7/10/2018 by InyoPools Product Specialist Kevin G.

Hello, this unit would work for you. 

?     Asked on 6/17/2018 by Consumer

I need to replace a heater model P-R405A-MN . I have natural Gas . Residential pool size 25 thousand gallons. 1) What is the replacement model heater fro the above named heater? 2) What is the adequate BTUs necessary for the above mentioned sized pool?

A  Answered on 6/18/2018 by InyoPools Product Specialist Joe S.

Yes the Raypak Heater 406,000 BTU NG ELE - PR406AENC would be the match to your current unit. If you wanted to change the BTU size we would need to also know the gas line size that is being run to that unit. 

?     Asked on 6/14/2018 by bill

I have a 30,000 gallon swimming pool what size heater should I get?

A  Answered on 6/14/2018 by InyoPools Product Specialist Megan C.

Please view our Sizing Your Pool Heater How to Guide http://www.inyopools.com/Blog/sizing-your-pool-heater/ to determine the correct BTU size for the pool. 

?     Asked on 6/12/2018 by Brett Steen/ Flag Service

is there a cover for the exhaust at the top of unit

A  Answered on 6/15/2018 by InyoPools Product Specialist Lennox H.

Hi, Brett. The "Pagoda" Top is included with the unit which is not shown in the picture. 

?     Asked on 6/11/2018 by Peter

I have a Raypack 406A that is several years old. Last year it worked intermittently and this year it goes on for 5 seconds and then shuts off and repeats this cycle until I turn it off. Any idea what the problem could be and what parts need to be replaced?

A  Answered on 6/12/2018 by InyoPools Product Specialist Joe S.

Good day, are you getting any error codes? This would help narrow down the issue. Attached is our common error code guide.

?     Asked on 6/9/2018 by

looking for part #, return header for this heater? Would like to order part Thanks Hans

A  Answered on 6/10/2018 by InyoPools Product Specialist Lennox H.

Hi. Hans. Replacement parts for this unit can be found using the Raypak Atmospheric Digital Heaters 206A-406A (11/01/04-Current) Parts Diagram.  

?     Asked on 5/29/2018 by Mike

I have a forty four thousand gallon pool what size heater will I need to heat the pool in reasonable amount of time

A  Answered on 5/29/2018 by InyoPools Product Specialist Lennox H.

Hi, Mike. For a pool that size you will need two unit to effectively heat your pool. Please provide the surface area of your pool, desired temperature, and the desired time frame so we can confirm. 

?     Asked on 5/25/2018 by Johnny

I live in California which requires a low nox emission swimming pool heater. Is the Raypak PR406 AENC Low Nox?

A  Answered on 5/25/2018 by InyoPools Product Specialist Lennox H.

Hi, Johnny. The PR407AENC / 009243 will be the Low Nox version of this unit. 

?     Asked on 5/18/2018 by Chas

Is this model the same as the Raypak 406A natural gas I am looking to replace utilizing my present gas and water connections

A  Answered on 5/19/2018 by InyoPools Product Specialist Lennox H.

Hi, Chas. This unit will be the same as the Raypak RP2100 Series 406A heater. They're different versions of this unit which are used in different applications. 

?     Asked on 5/17/2018 by Florin

Hi, we have a 60,000 gallons pool and need an electric heater at 220 volts. What would be the best choice for us of your models?

A  Answered on 5/18/2018 by InyoPools Product Specialist Lennox H.

Hi, Florin. For a 60,000 gallon pool if outdoor you will need two of these units to efficiently heat your pool. 

?     Asked on 5/9/2018 by Jason

Hello my unit that I need to replace says P-406A-EN-X

A  Answered on 5/10/2018 by InyoPools Product Specialist Lennox H.

Hi, Jason. The standard replacement for your current model will be the Raypak Heater 406,000 BTU's NG ELE W/ Cupro-Nickel Heat Exchanger - 014941. If you need a specific altitude unit or for commercial use, you will need a different unit. 

?     Asked on 3/27/2018 by

do you have next day delivery for this product

A  Answered on 3/27/2018 by InyoPools Product Specialist Lennox H.

Hi. Unfortunately, this unit is not eligible for any express shipping. This unit can only be shipped via LTL Freight. 

?     Asked on 9/20/2017 by Robert

On your PR406AEP the return fittings are coming out of the right side of the heater is there an option to have them come out of the left side of the heater? My current heater comes out of the left side, that's the way the pluming is set up.

A  Answered on 9/21/2017 by InyoPools Product Specialist Joe S.


?     Asked on 8/28/2017 by tim


A  Answered on 8/28/2017 by InyoPools Product Specialist Lennox H.

HI, Tim. This unit is not ASME, click Raypak Heaters ASME to view the ASME models. 

?     Asked on 7/25/2017 by

what size gas line do I need?

A  Answered on 7/25/2017 by InyoPools Product Specialist Lennox H.

Hi. The gas line size is based on the distance from the gas regulator. You can use the Sizing Chart located on page 20 of the Raypak Owners/Instructions Manual

?     Asked on 6/28/2017 by linda

how far does the pool heater have to be from the house - huntington ny

A  Answered on 6/29/2017 by InyoPools Product Specialist Joe S.

For U.S. installations, the point from where the flue products exit the heater must be a minimum of 4 ft below, 4 ft horizontally from, or 1 ft above any door, window or gravity inlet into any building. The top surface of the heater shall be at least 3 ft above any forced air inlet, or intake ducts located within 10 ft horizontally

?     Asked on 6/26/2017 by brian

replacing a Teledyne Laars EPS-400. This heater looks like it will plumb very much like my old unit. Can you confirm this? Also, will this new heater be ok to install in a closet in garage? Last, can you provide the measurements? Thank you for your help, Brian

A  Answered on 6/26/2017 by InyoPools Product Specialist Alex V.

Brian, Unfortunately, I do not have measurements of your heater to confirm. The heater can be installed indoors but you will need to purcase a draft hood to do so. You can view dimensions of the heater here: http://images.inyopools.com/cloud/documents/rpseries-technical-data.pdf 

?     Asked on 6/25/2017 by Michael

have a raypak RP 2100 400000BTU which is probably greater than 20 years old. I need to replace it. What do you suggest....gunite, 20x40 pool, in shaded area, chlorine based but could possibly change to salt in several years. Thank you.

A  Answered on 6/26/2017 by InyoPools Product Specialist Lennox H.

Michael, This current Raypak RP2100 PR406AENC NG unit can be used to replace your older unit and would be more efficient. 

?     Asked on 6/24/2017 by Stanford Faulkner

Is there a remote control for this heater? On the control readout, it has a remote option

A  Answered on 6/29/2017 by InyoPools Product Specialist Lennox H.

Stanford, This unit does not have a specific remote controller, it can be wired to an external controller so that you can control it remotely. 

?     Asked on 6/20/2017 by

I am interested in the raypack heater 406,000 BTU NG Elec with cupro nickel heat exchanger. I have a 50,000 gal. inground saltwater pool. My prior heater is a Raypack 2100 and is about 10 years old

A  Answered on 6/21/2017 by InyoPools Product Specialist Lennox H.

Hi, The model number for the unit you're inquiring about is PR406AENX.

?     Asked on 6/14/2017 by

Does the Raypak Pool Heater #PR406A-EP comes with a regulator which feeds the propane into the unit?

A  Answered on 6/15/2017 by InyoPools Product Specialist Patrick P.

The propane regulator would be supplied by the gas company and is not included with the heater.

?     Asked on 6/13/2017 by

I am replacing a RayPac P-R406A-EN-C. I contacted RayPac and they advised since I have asaltwater pool I should replace with a P-R406A-EN-X. What is the cost of that unit?

A  Answered on 6/15/2017 by InyoPools Product Specialist Lennox H.

Hi. Click P-R406A-EN-X to view the price and availability of that model.

?     Asked on 6/2/2017 by ray

I'm replacing a10 year old jandy lite 2 heater with a ng 406btu raypak, will the connections match up or do I have to expect alterations.

A  Answered on 6/3/2017 by InyoPools Product Specialist Patrick P.

The plumbing ports are not in the exact same location, so you will have some slight re-plumbing.

?     Asked on 5/24/2017 by Tom K

I use Biogard Optimizer in my pool which is Sodium tetra borate pentahydrate. Is that compatable with the copper or do I need the cupro nickle heat exchanger? I don't have a salt system and just use chlorine, algicide and this Optimizer ......

A  Answered on 5/25/2017 by InyoPools Product Specialist Scott W.

You would be good with the copper heat exchanger, but me personally would go with the cupro-nickel heat exchanger than is not going to be corrosive.

?     Asked on 5/1/2017 by Mark K

I am looking to replace a 20 year old Leslie's/Coppertherm Model L-C400-EN pool heater. It is a 400K BTU, natural gas, electronic ignition unit. I think Coppertherm and RayPak are the same, but I may be mistaken. I would greatly prefer a new unit where the water and gas pipes are positioned identical to the existing unit. Recommendations?

A  Answered on 5/1/2017 by InyoPools Product Specialist Lennox H.

Hi, Mark K. Based on the info I've found Rapak private label those units for Leslie's Pool Supplies. This Raypak unit 009219 is the correct replacement. To find out if this unit will match up exactly to your current you will have to review the Technical Data Sheet which has all the dimensional spec and the Raypak Owners/Instructions Manual to view the installation requirements.

?     Asked on 4/11/2017 by Bill Askew

Can you tell me the shipping weight of the 406A natural Gas heater???

A  Answered on 4/11/2017 by InyoPools Product Specialist Lennox H.

Hi, Bill. The shipping weight is 249 lbs.

?     Asked on 3/28/2017 by Jill

What is the effective warranty on this product? 1 year from date of purchase, receipt into your warehouse, or delivery date to my location? Thank you. Jill

A  Answered on 3/28/2017 by InyoPools Product Specialist Andy O.

Hello Jill- The warranty on this Raypak Heater 406,000 BTU NG ELE 009219 is 1 year from the date of purchase as long as it is properly documented and installed by a licensed installer.

?     Asked on 3/16/2017 by David Green

I have a compool easy touch upgrade automation system (Pentair) and I would like to know if the heater is compatible with the automated indoor remote controls that I have. I can just push a button from inside the house and my current spa pumps and heater turn on automatically, or I can set a timer to have them come on. Are they compatible in this way? Thanks!

A  Answered on 3/16/2017 by InyoPools Product Specialist Lennox H.

Hi, David. This unit can be controlled remotely, wiring instructions can be found on page 36 and 37 of the Raypak Owners/Instructions Manual

?     Asked on 3/12/2017 by

Does this unit require 240v or 120v?

A  Answered on 3/13/2017 by InyoPools Product Specialist Alex V.

Hello, The heater comes pre-wired for 230/240v but you can convert it for 120/115v as well.

?     Asked on 3/10/2017 by Tom

Ray pack model 009219 Pool size 23 ft /43 ft 40,000 gal My supply & return lines are 1.5 in Gas supply 1.4 in Will this work with this Heater

A  Answered on 3/14/2017 by InyoPools Product Specialist Andy O.

Hello Tom- For your size pool I would absolutely recommend the Raypak Heater 406,000 BTU NG ELE 009219. As far as the connections these come standard at 2" plumbing. As far as the gas line, the connection is 3/4" but that will only work for a run up to 5 ft, with a 1 1/4" your gas line can be up to  95 feet away from the gas valve. Here is a link to the owner's manual.

?     Asked on 1/28/2017 by Mark S

i have a salt water pool - is cupro nickle recommended?

A  Answered on 1/30/2017 by InyoPools Product Specialist Scott W.

Yes, if you have a salt system it is recommended to get a heater with the cupro nickel otherwise you will be replacing the heat exchanger every year or two due to the corrosion.

?     Asked on 12/27/2016 by

Is this unit considered commercial grade and pass boiler inspection in the state of Texas?

A  Answered on 12/27/2016 by InyoPools Product Specialist Stacey M.

Hello, I would really recommend 009271 Raypak Heater 406BTU NG ELE ASME. I would double check code with Raypak 805-278-5300 to see if this would work in Texas. In commercial setting you need an ASME rating on the heater.

?     Asked on 12/20/2016 by

60 foot run looks like 1 1/4" pipe should be good?

A  Answered on 12/20/2016 by InyoPools Product Specialist Adam Y.

It would have to be 1.5" pipe . The heaters come setup for 2" and you would have to reduce it with fittings but if its not at least 1.5" I would not do it.

?     Asked on 11/5/2016 by Dennis

We are considering a purchase of 400K BTU natural gas Raypak pool heater. What is the difference between the Electronic ignition and the Milivolt?

A  Answered on 11/7/2016 by InyoPools Product Specialist Lennox H.

Hi Dennis, Our Blog titled Differences in Swimming Pool Heaters will detail the difference between an electronic and a millivolt ignitor.

?     Asked on 10/29/2016 by BW

I currently have a Raypak 2100 405 and want to replace because of expensive repairs needed. I have a 8000 gal inground gunite pool and 1000 gal spa. I'm in DFW area where 75 degrees 9 months of year. What is a good size heater. Do I need 400K , 339K, or 299K, 206K? Heat spa the most times and like ready within an hour. Thanks BW

A  Answered on 10/31/2016 by InyoPools Product Specialist Scott W.

The 406k is going to be the most efficient heater for your spa, but you would be good with the 266k or 336k as well. They will not heat the spa as fast, but those two would be plenty big for your spa.

?     Asked on 9/6/2016 by sean

how do I reset rollout sw open. we had high winds that day to set it off

A  Answered on 9/6/2016 by InyoPools Product Specialist Stacey M.

Hello Sean, If you need to recalibrate please contact Raypak 805-278-5300

?     Asked on 8/21/2016 by Kenneth McKinzey

Will a 399,000 btu be good for 18,000 gal pool?

A  Answered on 8/24/2016 by InyoPools Product Specialist Stacey M.

Hello Kenneth, Depending on how quickly you want to heat your water, this Raypak Heater 406,000 BTU NG ELE should be perfectly adequate to fit your needs.

?     Asked on 7/2/2016 by Sam Hage

I have a Rheem 406000 btu using natural gas with digital display. I hardly ever used it since the replacement was made about 3 years ago. It was working as a month ago.. I went to start it a few minutes ago, but it gave me the error message and showing : sensor failure.. What could be the problem,, and how long is the warranty coverage on that unit. It was installed by a licensed & approoved Raypack dealer Thanks for your helo

A  Answered on 7/5/2016 by InyoPools Product Specialist Lennox H.

Hi Sam, The "Sensor Failure" can be tied to a few things according to the Raypak RP2100 Owner's Manual. These units only come with a one year manufacturers warranty.

?     Asked on 6/18/2016 by Sharon Bowlin

is this cupro nickel or copper heat exchange

A  Answered on 6/18/2016 by InyoPools Product Specialist Joe S.

009219 will be the copper heat exchanger. If you would like the curpo nickel then it will be part 014941.

?     Asked on 6/16/2016 by Younis

I have P-R405B-EN. Will P-R406A-EN-C be a direct fit?

A  Answered on 6/16/2016 by InyoPools Product Specialist Scott W.

It should match up but I'd recommend giving RayPak a call to make for sure. There number is 805-278-5300

?     Asked on 6/13/2016 by rich

how do you calculate BTUs? I have about 1400 surface and it goes as much as 12 feet deep in the deep end. I also have a Jacuzzi that can seat 8 or so.

A  Answered on 6/14/2016 by InyoPools Product Specialist Alan M.

Here is a link for a Pool Heater Sizing Calculator.

?     Asked on 6/1/2016 by Jeff

How much is shipping and tax on this raypack heater

A  Answered on 6/7/2016 by InyoPools Product Specialist Lennox H.

Hi Jeff, You can use the "Shipping Calculator" feature on the website to calculate tax if the unit is being shipped to the state of FL, shipping is included with this unit.

?     Asked on 5/17/2016 by Rich

i have a P-R406A-F N-C which model will replace my older one and will the plumbing and electrical have to be modified? thank you Rich

A  Answered on 5/20/2016 by InyoPools Product Specialist Lennox H.

Hi Rich, This unit will replace your current P-R406A-E-N-C unit. You may not have to modify the plumbing, if you have to it will a slight modification.

?     Asked on 4/13/2016 by

My drain plug blew out the other day and now the replacement plug will not thread into the header. Does the header need to be replaced. I have a Raypak P-R335B-EN.

A  Answered on 4/14/2016 by InyoPools Product Specialist Lennox H.

Hi, The Inlet/Outlet Header (006827F) will have to be replaced.

?     Asked on 3/11/2016 by Richard harris

Looking to purchase this heater to replace a jandy. Is it compatible with the jandy aqua link control panel to control heater with jandy pda. Does it have cupro nickel heat exchanger(saltwater pool). Does it have dual thermostat for pool and spa control. Thank you Also what is shipping time to the Dallas, tx area.

A  Answered on 3/16/2016 by InyoPools Product Specialist Lennox H.

Hi Richard, This unit can be wired to your Jandy controller, this unit does not have a cupro-nickel heat exchanger p/n 014941 does. It has a Microprocessor-Controlled Thermostat which allows you to set your pool and spa to your desire temperature. Shipping time can take 5-7 business days.

?     Asked on 2/29/2016 by Tom Malkinski

Hello....I have to bond my heating unit from my pool filter pump....is there a bonding lug on my raypak heater??? If so....where is the location. Thanks

A  Answered on 3/1/2016 by InyoPools Product Specialist Lennox H.

Hi Tom, Bonding lug are available on this unit, it is located on the left and right side of the unit.

?     Asked on 1/7/2016 by

Does the pool Heater Cover you suggested (WOHTR) cover the Raypak Heater #009219?

A  Answered on 1/7/2016 by InyoPools Product Specialist Joe S.

Hello, the WOHTR will work with the Raypak Heaters RP 2100 Series.

?     Asked on 1/1/2016 by Mark Hamister

What does Rollout SW open mean?

A  Answered on 1/4/2016 by InyoPools Product Specialist Matt S.

The Rollout Switch is triggered when high winds or some other internal factor is forcing flame towards the front of the unit. If your heater reads this code, contact a warranty servicer to inspect gas pressure, air mixture, and that the heat exchanger not clogged.

?     Asked on 11/13/2015 by vivian

can you give me the size and price for a cover for my new 336 BTU Raypak pool heater? Is there more than one price?

A  Answered on 11/17/2015 by InyoPools Product Specialist Joe S.

Hello Vivian, you can purchase the Pool Heater Cover-One Size Fits Most PART#WOHTR

?     Asked on 10/15/2015 by Tony.C

Good Morning I would like to know before purchasing two of these units , is this the same replacement for the Rheem P-M406A-EN-C ?. would it be a direct fit. Best Regards Tony C

A  Answered on 10/15/2015 by InyoPools Product Specialist Lennox H.

Hi Tony. C, The Raypak Heater 406,000 BTU NG ELE (009219) would be a direct replacement to the Rheem P-M406A-EN-C.

?     Asked on 10/6/2015 by AB

I want to replace my broken Heater P-R406A-EN-C S/N 0912068355, item 009219 with exactly the same model. Electrical, plumbing and gas connection need to be exactly the same to get the best Installation deal. Also Remote Connectivity. Is this the exact same model ? thx.

A  Answered on 10/9/2015 by InyoPools Product Specialist Lennox H.

Hi AB, The Raypak Heater 406,000 BTU NG ELE (009219) will be exactly the same as your current P-R406A-EN-C model.

?     Asked on 9/27/2015 by Robert Marr

What furnace do I need to replace Ray-Pak model P-R335B-EN?

A  Answered on 9/30/2015 by InyoPools Product Specialist Joe S.

Hi robert you would be looking at either  PART#009226 If you have Propane or Part#  009202 for Natural Gas

?     Asked on 9/16/2015 by Chris

Want to confirm that this is new. Also, where are the gas lines when looking at the front?

A  Answered on 9/16/2015 by InyoPools Product Specialist Andy O.

Chris, the Raypak Heater 406,000 BTU NG ELE part number 009219 is a new unit, the gas connections will be on the left of the unit.

?     Asked on 8/1/2015 by Scott f

I had a raypak Millivolt plus 399,000 btu for 15 yrs and just bought raypak 399,000 btu model - p- r406a 009219 polymer natural gas. It look like everything lines up and it's the same . The water in and out seam to line up and gas as well ? The old unit didn't have electrical. My did because I have jandy control in the house . i am having someone install but I want to know all of this so he doesn't charge that are not need I believe can use the wires fir the new one ?

A  Answered on 8/5/2015 by InyoPools Product Specialist Lennox H.

Hi Scott, You can reference the RP Series Technical Data for the  dimensions, and the Raypak Owners/Instructions Manual for installation requirements. The only major thing you will have to do in run electricity to new unit since it will have an electronic ignition.

?     Asked on 7/31/2015 by

I live in Rohnert Park, California (94928). 1) Do you know if I have to install the Low Nox unit? and is there a down side to this unit? 2) Do you have a list of approved installers in my area (to ensure the warranty requirements are met)

A  Answered on 8/4/2015 by InyoPools Product Specialist Joe S.

Hello there, You will have to check with your local code enforcement and they will let you know if Low Nox heaters are needed. Here is a link to Haywards Find a Pool Professional

?     Asked on 7/27/2015 by svott

I am replacing my old 15 yrs old raypak gas heater looks close to the same just newer my 406 btu is it that easy to install ?

A  Answered on 7/29/2015 by InyoPools Product Specialist Lennox H.

Hi Scott, If you have the same model as the Raypak Heater 406,000 BTU NG ELE (P-R406A-EN-C),  installation would be easy. However Raypak requires their unit to be installed by a licences installer to keep the warranty.

?     Asked on 6/29/2015 by danny j.

I got a big pool 20' x 40' feet from 3-9 feet deep,the 406,000 BTU will be big enough to heat my pool? I live in California,never turned the old heater on,being like that for 23 yrs.

A  Answered on 7/11/2015 by InyoPools Product Specialist Patrick P.

Hi Danny, yes this heater would be large enough for your pool. If you are in California your local code may require that you use a Raypak Low Nox Heater also if you are above 2,000' you would need a Raypak High Altitude Heater. One final thought...if you have an existing gas line you will need to make sure that it is large enough to support a 406,000 BTU heater, here is the Pool Heater Gas Line Sizing Chart which will help you determine the gas line you will require.

?     Asked on 6/27/2015 by Dennis

Hi I have pool size 12x 32 ( 4' to 9' deep ) Salt water system. What size pool heater and Back Flow Valve Would you recommend ? Thank You

A  Answered on 6/28/2015 by InyoPools Product Specialist Lennox H.

Hi Dennis, Since you have a salt water pool I would recommend the Raypak Heater 406,000 BTU's NG ELE W/ Cupro-Nickel Heat Exchanger,  it will heat your pool faster than any other models and will last longer due to the Cupro-Nickel heat exchanger in the salt water environment. A Clear Check Valve 2" - 1/2 lb. w/ Unions or Clear Check Valve 1.5" - 1/2 lb. w/ Unions would also be recommended depending on your pipe size.

?     Asked on 6/17/2015 by gail

I need a cover for the digital display on my rayrac heater serial # 0606165220 model # P-R406A-EN-C Thank you, Gail

A  Answered on 6/19/2015 by InyoPools Product Specialist Lennox H.

Gail, The replacement display for the RayPak P-R406A-EN-C will be the Control Panel Lid, Digital (006739F).

?     Asked on 6/8/2015 by Guest

Hi, I'm a little confused about gas pipe sizing. Does the actual heater still take 3/4 or 1". I have one inch piping in my house, but for my current heater, I have 3/4. The heater is an old raypak versa 188k btu.

A  Answered on 6/9/2015 by InyoPools Product Specialist Wes B.

Hello, For this Raypack Heater A 3/4” gas line can be used for up to 5 ft maximum length from the gas valve in addition to the sediment trap.

?     Asked on 5/15/2015 by Mike

What are the dimensions of raypak 406,000 btu

A  Answered on 5/15/2015 by InyoPools Product Specialist Joe S.

the unit is 40" high, 28" wide. Attached is the Technical Data sheet that will have all the dimensions to the heater

?     Asked on 5/13/2015 by sam

Is the gas line for the 406k BTU larger than other raypak heater?

A  Answered on 5/13/2015 by InyoPools Product Specialist Patrick P.

Hi Sam, Yes the gas line requirements for the 406K Raypak heater is larger than the smaller Raypak heaters. Here is the gas supply line requirements for this heater, if the distance from gas valve to heater is 0' - 20' then you will need a 1" gas line, 21' - 95' requires a 1-1/4" gas line and 96' - 225' requires a 1-1/2" gas line.

?     Asked on 5/7/2015 by Alex

Hello, what size of the heater would you recommend for the 18x36 size in ground pool Thank You Alex

A  Answered on 5/7/2015 by InyoPools Product Specialist Lennox H.

Alex, This Raypak Heater 406,000 BTU NG ELE will be suitable for your size pool since this the the largerst unit Raypak has.

?     Asked on 3/31/2015 by Mike

I need to replace my current pool heater, I have the Raypak model number P-R406A-FN-C. My question is that my intake and output pipes on the heater are on the left side when looking at the front control panel.The new heater you have those lines are on the right side when looking at the control panel. HELP! What can I do besides re plumbing everything ?

A  Answered on 4/1/2015 by InyoPools Product Specialist Robert M.

Hello Mike - The water connections come from the factory set on the right hand side. Once you receive the heater, you can switch the connections to the left side. Instructions for this are in the owner's manual.

?     Asked on 3/25/2015 by

For the Raypak Heater 406,000 BTU NG ELE model that you sell is this an older model or the most current model that Raypak is currently offering?

A  Answered on 3/26/2015 by InyoPools Product Specialist Robert M.

We are constantly turning over our stock of Raypak heaters. This is a current Raypak model.

?     Asked on 3/25/2015 by Alex

Can it be used with propane gas and how noise is it?? Thank You Alex

A  Answered on 3/25/2015 by InyoPools Product Specialist Wes B.

Alex, That specific heater is for natural gas only, if you needed propane the correct heater would be p/n (009227) or (PR406AEP), This heater would be no louder than your typical heating and central air unit.

?     Asked on 3/23/2015 by

will this unit work with lp gas? I have a regulator from the last heater in line now

A  Answered on 3/23/2015 by InyoPools Product Specialist Wes B.

The correct heater you would want for propane would be Raypak Heater 406000 BTU LP ELE.... Part Number (009227)

?     Asked on 12/17/2014 by LUIS

what kind of warranty this unit have for commercial use

A  Answered on 12/17/2014 by InyoPools Product Specialist Robert M.

Hello Luis - Model 009219 is not the correct model for commercial use. You would need model 009271. The 009271 has a one year warranty.

?     Asked on 8/30/2013 by Guest

What size gas connection is needed for installation of the RayPak 406k BTU?

A  Answered on 8/30/2013 by InyoPools Product Specialist Patrick P.

The RayPak 406k BTU heater requires a three quarter inch connection, whether propane or natural gas.

?     Asked on 8/30/2013 by Guest

Can you provide me the dimensions for the Raypak RP Series model PR406AEN?

A  Answered on 8/30/2013 by InyoPools Product Specialist Patrick P.

The Raypak 406 BTU RP2100 Series the cabinet measures are as follows: Width - 29 inches, Depth - 28 inches, Height - 38 inches. Any further technical data, like gas line size or voltage be found in the Raypak Specifications Guide

?     Asked on 10/10/2012 by 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 1/16/2012 by 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 6/11/2006 by Guest

What size natural gas line should be used on a Raypak 406,000 BTU heater?

A  Answered on 6/11/2006 by InyoPools Product Specialist Patrick P.

The 406,000 uses a minimum of 1" natural gas line and this would be if your run of pipe is 20 feet or less.  If your run of gas pipe is 21' - 95' you would require 1 1/4" pipe and if your run is between 96' and 215' you would require 1 1/2" gas pipe.


Est. Repair Time

4 to 8 hrs

Tools Needed

Screwdriver, Nut Drivers, Pliers, Socket Set, Adjustable Wrench, Pipe Wrench

My old unit was rusting and not working

Written on 6/23/2020 by Guest

None of the new heaters had plumbing on the left side like my old one, so everything needed to be replumbed.

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