By Raypak



Model # R8450TI-E-HC

Manufacturer Code 016037

Alternate Part #'s 013336, 016037, R8350TI-E-HC, R8450ti-E-HC, RAY016037

Product Description

Raypak's Heat Pumps feature exclusive DuraSteel powder-coated cabinets, 3 blade swept wing fangs, and a best in class warranty service.

Classic Model Standard Features:

Cabinet Durability

  • Exclusive DuraSteel™ Powder-Coated Cabinet
    Same rugged steel construction used by all the major air conditioner manufacturers. Fully louvered steel jacket protects the evaporation coil from storm debris, hail, and harsh weather. Not to mention the winning goal in a back yard soccer match. A plastic cabinet is no match for the all steel Raypak cabinet.

Quiet Operation

  • 3 Blade Swept Wing Fan
    Precision engineered and tuned for our heat pump. This means more air over the coil which translates to greater efficiency all while being whisper quiet!
  • Extremely Tough Composite Base
    Rustproof and ultrasound deading base material keeps your heat pump up and running for years while holding sound levels to an absolute minimum.


  • Scroll Compressor
    Scroll compressors are quiet and efficient compared to piston type compressors. They provide higher efficiency, lower sound levels, superior durability, and unsurpassed reliability. The unique design of a scroll compressor actually wears in overtime, not out!

Titanium Heat Exchanger

  • Spiral Titanium Tube
    The spiral titanium tube heat exchanger provides a corrosion-free waterway that can withstand the abuses of harsh pool chemistry. The spiral tube helps reduce deposit build-up and increases efficiency by performing a “scoop-and-lift” action.
  • Internal Automatic Water Bypass
  • Plumbing Connections Off-set 2” PVC union connections

Digital Controls - Basic Functions

  • Pool/Spa Control
    Your digital heat pump pool heater can be set to have a different target temperature for your pool and spa. This allows you to dial in just the right spa temperature and never have to adjust it again. The pool can be set to a lower, more energy saving temperature.
  • Remote Compatible
    The digital heat pump pool heater can be easily controlled by most two-wire and three-wire remote systems. The digital display will flash “Remote” to let you know that it is under control of a third party automation system. Simply press the up and down arrows for 5 seconds to release the control from the remote mode and regain local control.
  • On Board Diagnostics
    Tells you, the homeowner if there is a problem. Provides the service technician with detailed diagnostic information in real english.

Digital Control - Built-in Mini Automation

  • Solar Priority Control
    Allows solar to be the primary heat source and your heat pump as a backup booster.
  • Heat Pump Priority Gas Heater Back Up Control
    Heat pump is the primary source for heat with gas as a booster when needed.
  • Multi Unit Control
    Stages heaters ability to come on by delaying the start.
  • 3-Way Valve Control
    Control and program 3-way valves to work with pool and spa mode on digital control. No external parts to buy.
  • Pump Control and Time Clock

2 years Labor and 7 years Parts 
10 years on the heat exchanger tube, see warranty for details.

Best in Class Warranty Service Same day in the major cities in Florida, 24-48 hours most everywhere else. Areas outside of Florida are 24 to 48 hours with certain designated major cities having same day service. Check with your Raypak sales person for warranty service details in your area. We try harder!

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

137,000 BTU
Coefficient of Performance:
60 Hz
Minimum Circuit Ampacity:
Recommended Breaker Size:
Min Flow Rate:
15 GPM
Max Flow Rate:
60 GPM
387 lbs.
Heat Exchanger:
Special Feature:

?     Asked on 4/21/2022by Richard

we have a 20,000gal pool. will this unit heat/cool that size.

A  Answered on 4/21/2022 by InyoPools Product Specialist Craig C.

Hello Richard.   The Raypak Classic Series Heat Pump 137,000 BTU (Heat/Cool) would be an appropriate model for both heating and cooling.  Using a physical cover (solar blanket) or chemical cover (Cover Free) will assist in obtaining and maintaining the desired temperature.   Attached please find a link to the Raypak Heat Pump Sizing Guide.  Populating the required fields will provide excellent sizing/electrical cost information vs the desired temperature for the Zip Code 33946, Cape Haze, FL. (Ft Myers in the city selection sizing guide)  Raypak Sizing Guide

?     Asked on 6/30/2021by Robert Casebolt

I have a 40-50K Swimming Pool, Looking at heating and cooling. Can this do the job or is there a better more efficient system out there.

A  Answered on 6/30/2021 by InyoPools Product Specialist Craig C.

Hello Robert.  The RayPak Classic Series Heat Pump 137,000 BTU Heat/Cool would be an appropriate model for both heating and cooling.  Using a physical cover such as a solar blanket or a chemical cover (Cover Free) will help in obtaining and maintaining the desired temperature.  Heat Pumps (in the heating phase) transfer heat energy from the surrounding air to the pool water.  The higher the air's ambient temperature, the more heat energy is available, the faster the pool water gains temperature.  Water evaporation is the primary reason for heat loss in the pool.  A solar blanket or a chemical cover help prevent evaporation and heat loss, protecting your investment in electrical energy to heat the pool water.   Natural Chemistry COVER FREE 1 Gallon - 07109

?     Asked on 4/22/2021by James Rae

I have a 36000 gal pool and want to use this mainly to cool my pool in the summer and then extend our swim season with the heat pump. Will unit be sufficient?

A  Answered on 4/23/2021 by InyoPools Product Specialist Craig C.

Hello James.  Yes, the Raypak model R8450TI-E-HC would be an appropriate selection for your 36,000 gal pool for both heating and cooling applications.      Classic Series Heat Pump 137,000 BTU (Heat/Cool) - 016037

?     Asked on 1/28/2021by Joseph Myrick

Is there a Defrost feature for the 8450ti-E-HC?

A  Answered on 1/29/2021 by InyoPools Product Specialist Michelle B.

Hello,Thank you for contacting Inyopool products!Unfortunately, there is not. 

?     Asked on 4/13/2020by KC

Our in-ground pool is appr 24,000 gallons. We live in Louisiana and want to know if this unit would be a good fit for our pool?

A  Answered on 11/23/2020 by InyoPools Product Specialist Megan C.

Yes, the Classic Series Heat Pump 137,000 BTU (Heat/Cool) - 016037 will work for you. You will need to use a Solar Blanket or Natural Chemistry COVER FREE 32 Oz - 07100 to prevent evaporation when using a heat pump or heater as 80% of heat loss is due to evaporation, without a cover you will operate the unit longer to reach the desired temperature levels. It will take approximately, 2-hours to raise the temperature by 1-degree for this unit with the use of the solar cover or cover free. If you have a chlorinator or salt system in the plumbing, the use of a check valve will be needed to install in between the heat pump and chlorinator or salt system to prevent the chlorinated water from resting inside of the heat pump when power is off.

?     Asked on 4/2/2020by Marty

what is the difference between the 8450ti-E-HC and the 8450ti-E-HC-1? thanks

A  Answered on 4/2/2020 by InyoPools Product Specialist Patrick P.

Hi Marty, There is no difference between these two part #'s

?     Asked on 3/30/2020by Greg Brewer

What is the difference in ray pak 140000 n 137000 btu heat pump

A  Answered on 3/30/2020 by InyoPools Product Specialist Patrick P.

Hi Greg, The 137,000 BTU Unit has an option to cool your pool in the summer. The 140,000 BTU RayPak Heat Pump is Heat Only

?     Asked on 2/11/2020by Kevin

What is the difference (pros & cons) in this model and the M8450 ti-E-HC 016038 or the R8450 ti-E-HC 016037 (and what is the difference in these 2 models)

A  Answered on 2/12/2020 by InyoPools Product Specialist Lennox H.

Hi, Kevin. The difference between these two models is the color and band. Otherwise, they will perform the same. 

?     Asked on 1/26/2020by Robert

IS this heat pump compatible with the Pentair Easytouch controller? If so, are any additional items need to connect the heat pump to the controller? Is there documentation for the connection? Thank you.

A  Answered on 2/3/2020 by Industry Professional

This heater can be used with the Pentair EZTouch Controller , It will allow you to turn the heater on and off from the control.

?     Asked on 11/21/2019by Lisa

Our pool is 22000 gal with a spa. Will this heat both and do you have to hook up gas for the backup, will it work without?

A  Answered on 11/22/2019 by Industry Professional

We would need more information about your Pool and Spa. Where are you located? Do you have a cover on the pool? Are you in a high wind area? What temperature do you want the pool or spa at? Is the spa a spillover spa??

  • Commented on 11/27/2019 by Product Owner

    We are in Wilmington, NC and we have never covered our pool. The spa does spill over into the pool, we isolate and heat it up when we want to use it. We like to keep the pool at 85, we heat the pool in the spring and fall to extend our season. We usually can get in the pool Mid March to first of April with a heater and in the fall till November.

    • Commented on 12/6/2019 by InyoPools Product Specialist Lennox H.

      Lisa, This unit will be sufficient. However, a cover will be required in October/November. It will be too cold to operate efficiently. 

?     Asked on 9/25/2019by Niles Tagliamonte

OK, Point me in the direction of an installer (33308), and repair for this product...

A  Answered on 9/26/2019 by InyoPools Product Specialist Michelle B.

Hello, Unfortunately, we do not do any installs or repairs, nor we do not have anyone to recommend. We recommend contacting the manufacturer to seee fi they can recommend anyone. You can reach them at 805-278-5300.

?     Asked on 8/9/2019by Michael

Raypak HC unit installed on my pool. I have the unit in Pool Auto and temp set to turn on when water temp drops below 85 or above 85. My unit turns right on when the pump starts and filtering starts my VSP pump starts Problem is if the pool water temp on my Raypak is reading 83 when the start process stops and the pump drops to 80% the Raypak shuts off and reads "No Demand" unit is not running in remote - shouldn't it continue to run to bring the temp of the water up to 85 degrees yes/no.

A  Answered on 8/10/2019 by Industry Professional

That would be something we suggest contacting Raypaks helpline 805-278-5300

?     Asked on 5/10/2019by Michael

Will this heat/cool pump operate efficiently and cohesively in the following size pool - surface square footage 608, at 24,000 gallons operating with a Hayward SP3400VSPVR pump and Hayward Pro Logic automation box ?

A  Answered on 5/14/2019 by Industry Professional

please supply the following information so we can provide the proper estimates for you.. 1) What is your zip code and city? 2) What is the nearest major city? 3) What temperature would you like to maintain? (82 -85 degrees is standard) 4) Do you want to heat the pool year round or just extend the pool season by a few months in the spring and fall? 5) What is the square footage of the pool? (For example, a 40' X 20' pool would be 800 sq. ft.) 6) What is the average depth of the pool? 7) Do you have high wind conditions from a lake, ocean or open field with winds over 20 mph consistently? 8) Will the pool heat pump receive direct, partial or no sunlight? 9) Will you be using a solar blanket?

  • Commented on 6/9/2019 by Product Owner

    Corrected projected gallons of 18,500 - Size of the pool is 16x38 - Pool Total Sq Ft ='s 608 - average depth of pool is 5 feet - zip code 28422 - closest major city is Wilmington, NC - like to maintain 85 degrees - want to extend the seasons Spring and Fall - no high winds - Heat pump will be located in partial sun - Pool is located in all sun, all day - there will be no solar cover -

    • Commented on 6/10/2019 by InyoPools Product Specialist Patrick P.

      Please see updated information.

      • Commented on 6/10/2019 by Product Owner

        So where is the answer ...???

        • Commented on 6/17/2019 by InyoPools Product Specialist Patrick P.

          Mi Michael, based on the information you provided this would be a properly sized heat pump for your pool.

?     Asked on 3/25/2019by Mike

I purchased the RayPak heat pump R8450TI-E-HC. Does this come with a gas booster or is it 100% electric?

A  Answered on 3/25/2019 by InyoPools Product Specialist Lennox H.

Hi, Mike. This unit does not come with a gas booster, it's all electric. 

?     Asked on 3/17/2019by William Patterson

Can I connect the RS485 of the Raypak Heat Pump unit to the communication connector on my Pentair Intelliflo pump so that the pump runs when the heat pump is running?

A  Answered on 3/17/2019 by InyoPools Product Specialist Lennox H.

Hi, William. You are able to wire a variable speed pump to this heat pump using the RS485 Terminal on the pump and the P8 terminal on the unit's circuit board. 

  • Commented on 3/18/2019 by Product Owner

    Can you provide more details on the electrical connections between the Raypak 8450 heat pump and a Pentair Intelliflo pump for automatic pump operation upon heat pump demand?

  • Commented on 3/17/2019 by Product Owner

    Thanks. Can you provide more specific info on the wiring connections between the heat pump P8 terminals and the communication cable on the Pentair Intelliflo pump?

?     Asked on 3/16/2019by Mike

Is this unit ok with salt water pools?

A  Answered on 3/18/2019 by InyoPools Product Specialist Michelle B.

Hello, Yes, these units can work with salt water pools.

?     Asked on 1/29/2019by Lorne M Spelrem

does this unit use gas also ?

A  Answered on 1/30/2019 by InyoPools Product Specialist Michelle B.

Hello, This unit only uses electricity.

?     Asked on 1/12/2019by Mike

Do you have any 3 phase units in stock?

A  Answered on 1/14/2019 by InyoPools Product Specialist Michelle B.

Hello, Unfortunately, we do not have the 3 phases in stock.

?     Asked on 12/20/2018by Inyo Visitor

How is warranty affected when I purchase online? What is warranty coverage?

A  Answered on 12/22/2018 by InyoPools Product Specialist Kevin G.

Hello, this warranty will be valid if bought online and the warranty period is one year if installed by a licensed installer. 

?     Asked on 10/25/2018by Inyo Visitor

No need to cool, but will a unit desgined to cool function as a heater at a lower ambient temp than a heater only unit?

A  Answered on 10/25/2018 by InyoPools Product Specialist Joe S.

Good afternoon, the r8450ti-e-hc-1 has an operating temperature down to 50 degrees.

?     Asked on 10/1/2018by Ed

Is this a new and unused unit?

A  Answered on 10/1/2018 by InyoPools Product Specialist Lennox H.

Hi, Ed. Yes, this product is new and unused. 

?     Asked on 3/19/2018by David

Will this unit be adequate for a 19x45 inground pool in south central PA? Average depth goes from 3.5' to 5.5'? Which of these units would you recommend? This Rapak, Pentair UT140HC, or Jandy JE3000TR?

A  Answered on 3/23/2018 by InyoPools Product Specialist Joe S.

hello David, yes this unit would be adequate for your size pool. Also attached is RayPaks Heat Pump sizing guide that will help.

?     Asked on 1/13/2017by Inyo Visitor

What is the KW input for this model?

A  Answered on 1/16/2017 by InyoPools Product Specialist Lennox H.

Hi, The kW input for this model ranges from 7.0 to 7.01.

?     Asked on 1/13/2017by caccamised@aol.com

What are the dimensions of this and the 8350-Ti-E units?

A  Answered on 1/16/2017 by InyoPools Product Specialist Andy O.

Hello- The dimensions of the 8350TI-E Heatpump are 42.5" H x 34.5" L x 34.5" D.

?     Asked on 8/30/2016by John

Is INYO an authorized dealer for Raypak? Wan to make sure the warranty will be honored.

A  Answered on 8/31/2016 by InyoPools Product Specialist Stacey M.

Hello John, Yes we are an authorized dealer, please look at warranty exclusions under "product descriptions" under controls-digital.

?     Asked on 8/8/2016by RC

what's the approximate amount of time it would take to cool a 15.000 gallon pool from 92 degrees down to 85 degrees?

A  Answered on 8/8/2016 by InyoPools Product Specialist Lennox H.

Hi RC, They are several factors like the pool surface color, the outside temp, if the pool is covered etc. that will that will determine how fast this unit will drop the water temperature.

?     Asked on 6/15/2016by bob brannan

what does the "chiller" function do?

A  Answered on 6/16/2016 by InyoPools Product Specialist Alan M.

The chiller allows you to cool down your pool on the hot summer days.

?     Asked on 6/12/2016by Scott

My Pool is 16000 gallons is this the right size for heating/cooling? Additionally on a Heat Pump can it also heat a whirlpool along with the pool?

A  Answered on 6/19/2016 by InyoPools Product Specialist Alex V.

Scott, This would be a good size for your pool. As for the spa, a heat pump will not heat the water as quickly in lower temps but it can be used to heat the spa.

?     Asked on 4/26/2016by Eduardo Moctezuma

My pool is approx 50 cubic meters of water, this pump heater will be efficient for this size?

A  Answered on 4/26/2016 by InyoPools Product Specialist Lennox H.

Hi Eduardo, This unit will be sufficient for your size pool.

?     Asked on 3/12/2016by Sandi

My pool is approx. 50,000 gallons, would this be a efficient for that size

A  Answered on 3/17/2016 by InyoPools Product Specialist Lennox H.

Hi Sandi, This is the largest BTU unit Raypak has available. It would take some time to heat a pool your or the AquaCal HeatWave 143K (SQ175) would be the largest unit we carry for residential use.

?     Asked on 10/23/2015by Inyo Visitor

What size heat pump would I need for 24,000 gallon pool?

A  Answered on 10/26/2015 by InyoPools Product Specialist Lennox H.

Hi, The Raypak Standard 133K BTU Digital Heat Pump W/ Chiller (R8350TI-E-HC) will be suitable for you 24,000 pool. I would not recommending a Heat Pump under 110,000 BTU.

?     Asked on 7/30/2015by DAVE

This Unit will Heat as well as Cool the Pool ???? How many BTU's of Heating - vs - Cooling ?????

A  Answered on 7/30/2015 by InyoPools Product Specialist Joe S.

Hello Dave, This unit is 133,000 Heat /125,000 cool

?     Asked on 3/14/2015by Inyo Visitor

I was wondering what the lowest possible cooling setpoint on the unit is

A  Answered on 3/16/2015 by InyoPools Product Specialist Joe S.

The lowest cooling setpoint for the HC Heat pump is between 55-58 degress depending on ambient temperature.


Est. Repair Time

4 to 8 hrs

Tools Needed

Screwdriver, Nut Drivers

2     2

Needed a Heater

Written on 11/28/2018 by Guest

The heater works great.

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