By Hayward Pool Products



Model # HP31204T

Alternate Part #'s HAY-15-5150, HAYHP31204T

Product Description

Extend your pool season with a Hayward® HeatPro® heat pump.  Quiet and economical, heat pumps use the outside air and a titanium heat exchanger to generate heat for a fraction of the cost of gas.  Save up to 80% on operating costs.


  • Titanium Heat Exchanger - excellent salt water and chemical corrosion resistance
  • Exclusive 'Ultra Gold' evaporator coil corrosion resistant especially in coastal areas
  • Quiet operation - quiet backyard environment
  • AHRI certified performance - independent lab certified performance ensures the value of the purchase
  • 2in x 2 1/2in CPVC union plumbing connections - common union for installation or service, adapts to larger plumbing recommended for greater efficiencies
  • Light weight - less than 250 lbs.


  • 2 Year Warranty on manufacturer defects
  • 5 Year Warranty on Compressor
  • 10 Year Warranty on Titanium Tube

Product Specifications

120000 BTU
Heat Exchanger:
Special Feature:
Heater Type:
Heat Pump

?     Asked on 12/28/2016by Chris

What size pool will this heat/cool? and will it run a salted pool, mine is 25,000 gallons.

A  Answered on 12/28/2016 by InyoPools Product Specialist Adam Y.

Good afternoon Chris, This unit will work, if you want the cooling feature. If the heat feature is more important than I would recommend the 140,000 BTU unit. Heat pumps pull heat from the air so if your in an area that is below freezing this is not for you. All Heat pumps have Titanium heat exchangers so this will hold up the best for salt pools. If you have any other questions feel free to call. We are open Monday through Friday 9am-6pm Eastern time.

?     Asked on 4/4/2017by tom

Re: Hayward Heat Pro Heat Pump 120,000 BTU Heat/Cool - HP31204T my inground is about 25' x 14' and is 4.5' deep throughout. Is this the correct size for my pool? or would it be more efficient to get more BTU?

A  Answered on 4/5/2017 by InyoPools Product Specialist Scott W.

What state do you reside in?

?     Asked on 5/10/2017by Mike W.

will the Model HP31204T work ok with an above ground pool, water level above heat exchanger ?

A  Answered on 5/10/2017 by InyoPools Product Specialist Scott W.

Yes, that heat pump will work great with an above ground pool. Just make sure you have the correct electrical hook ups for that heat pump.

?     Asked on 5/18/2017by Wayne

1) looking for price / availability for a Hayward heat pump 140,000 btu , 60 amp . 2) Delivery to Courtenay , B.C.

A  Answered on 5/20/2017 by InyoPools Product Specialist Lennox H.

Hi, Wayne. To view the current price of this unit which is USD click here > HP31204T. We're unable to ship this unit directly to Courtenay B.C., you will have to have the unit shipped to a freight forwarder of your choosing.

?     Asked on 5/19/2017by Wayne

I'm trying to find proper size heat pump to replace my existing unit #HP21003T . I'd like to have a quote including shipping to Courtenay B.C. SN. 21120810005734001

A  Answered on 5/20/2017 by InyoPools Product Specialist Lennox H.

Hi, Wayne. You can replace the HP21003T with the HP31204T or HP21254T. We're unable to ship this unit outside the continental USA. You will have to have the unit shipped to you using a freight forwarder of your choosing.


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