Your Guide to Pool Heat Pumps by The Hayward Heat Pump Experts

If you’ve been thinking about getting a heat pump but don’t know where to start, you’ve come to the right place. In this article, we cover everything you need to know about heat pumps, like how they work, why they’re so popular and how to choose the right one for your pool. Then we finish with energy-saving tips and a handy sizing guide.

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AHRI CERTIFIED IS A MUST

THE MOST EFFICIENT WAY TO HEAT YOUR POOL - POWERED BY INVERTER TECHNOLOGY

FROM INDUSTRY LEADERS

A pool heat pump is a simple and energy-efficient way to keep your pool or spa water warm all year round. But unlike a gas or electric pool heater, it doesn’t actually generate heat. Instead, it pulls warmth from the air outside and uses it to heat your pool water.

 Here’s how it works. When your heat pump is on, a fan draws warm air into the heat pump’s evaporator coil. The air heats up the liquid refrigerant inside, turning it into a gas. The gas then passes through a compressor that heats it further. Once it reaches a certain temperature, it moves into the heat exchanger (a tube within a tube) and heats up your pool water. When this is done, the water returns to your pool and the gas goes back to liquid form and starts the process all over again. 

In general, heat pumps rely on warm ambient temperatures, which means they work more effectively in temperate or humid climates. For best results, the air temperature should be 10 degrees Celsius or higher. The Hayward and Moov Variable Speed Inverter Models are gaining ground with improved heat transfer and higher C.O.P (coefficient of performance) with self regulating compressor and fan rpm's.

BREAKING DOWN THE PROCESS OF A SWIMMING POOL HEAT PUMP IN OPERATION

1.) A unit of electrical energy runs the compressor which sucks evaporating Freon gas from the liquid filled evaporator tube. This causes a strong cooling effect (just like sweat evaporates from your skin and cools you off). The gas picks up four units of heat from the air flowing over the outside of the evaporator tubes.

2.) The compressor squeezes this gas, causing its temperature to climb above 200° F (93° C) Result: Five units of heat added to the gas.

3.) The hot, high pressure gas flows through the inside of the condenser coil. The colder 80° F (26° C) pool water picks up the five units of heat from the Freon which cools it down back to a warm liquid.

4.) The warm liquid is forced through a valve. As it drops in pressure, it rapidly expands and becomes extremely cold liquid . This liquid flows back into the evaporator at (1) where it repeats the cycle.

Pool heat pumps are designed specifically for recreational water heating (in ground, on ground or above ground pools, spas, hot tubs, swim spas, etc.) If you have an air conditioner, dehumidifier, water cooler or a refrigerator, you already own a heat pump.

VARIABLE SPEED HEAT PUMPS CAN ALSO COOL YOUR POOL OR CHILL YOUR COLD PLUNGE

WARMS TO EXTEND SWIM SEASON

Extend swim season with improved heating capacity below 50°F using our patent pending defrost algorithm.

COOLS FOR PERFECT TEMPERATURE*

Ideal for warm or desert climates with 30% increased cooling capacity compared to competitive technology

CHILLS DOWN TO 40°F FOR COLD PLUNGES

Chills to low temperatures so you can get all the benefits out of your next cold plunge

ADVANTAGES OF A SWIMMING POOL HEAT PUMP

ENERGY-EFFICIENT, DURABLE, ECONOMICAL

One of the best things about pool heat pumps is their energy efficiency. While they still require electricity to run, they don’t need it to generate heat, which means they use far less power to heat your pool than gas heaters. A heat pump’s efficiency is usually measured by a Coefficient of Performance (COP) rating. As a rule, the higher the rating, the better the efficiency. 

So if you’ve got a heat pump with a COP of 8, you get 800 units of energy transferred to the pool, which is pretty good. If you get an inverter heat pump, you get even more efficiency. Hayward and Moov Heat Pumps utilize the latest inverters making them 35-50% more energy-efficient than non-inverter heat pumps.

Heat pumps usually have a longer lifespan than other heating systems. The average lifespan of a gas heater is 5–10 years and a solar pool heater is 15 years. A pool heat pump, on the other hand, can last 15–20 years. This is because it doesn’t actively produce heat; it transfers it, which means it doesn’t have to work as hard. 

INSTALLATION OF A SWIMMING POOL HEAT PUMP

PLUMBING AND ELECTRICAL CONSIDERATIONS

Installing a pool heat pump

The best time to install a heat pump is when you first get a pool. However, it can still be retrofitted by an electrician or pool technician, even if you’ve got a different heating system. Here are some points to keep in mind:

  • Ensure there’s enough power to run the heat pump. 
  • Position the heat pump in a well-ventilated area (see your manual for clearance requirements). 
  • Keep the heat pump close to the pool (long pipes can slow down circulation).
  • To avoid water damage, keep the unit away from leaky gutters or sprinklers.
  • Use a level concrete base to minimise vibration.
  • Ensure the heat pump is placed last in your flow system (except when you’ve got a chlorinator; this can corrode the heat exchanger).
  • Insulate the pipes to reduce heat loss.
  • Install a bypass valve for serviceability and regulate flow as required

THE BEST SWIMMING POOL HEAT PUMPS JUST GOT BETTER

Hayward Variable-Speed Inverter models are available in a range of btu outputs suitable for above ground pools, plunge pools, (HP55CLEE1) mid range pools (HP80CLEE1) and maximum heating power for large pools, (HP140CLEE1) commercial applications and premium installations. All models are backed by the best warranty coverage on parts and labour, the largest authorized service network of all brands with rapid support.

Hayward EE HeatPro Variable Speed (55,000 btu)

HP55CLEE1

Hayward EE HeatPro Variable Speed (60,000 btu)

HP60CLEE1

Hayward EE HeatPro Variable Speed (115,000 btu)

HP115CLEE1

Hayward EE HeatPro Variable Speed (140,000 btu)

HP140CLEE1

Highest C.O.P Efficiency

Saving up to 50% in electricity over standard single speed units

Lowest AMP Draw

Lowest energy consumption versus competitors

Ultra-Quiet Operation

Lowest decible levels at all speeds

TRUE-BTU RATINGS

Accurate BTU listings from Canada's Best Brand

Twisted Titanium Exchanger

Counter flow freon-water for maximum heat transfer

Automation Ready

Control with Hayward Omni or any third party control system

AHRI Certified

Third party testing assures 100% performance ratings

Auto Defrost Mode

Hot gas defrost prevents evaporator coil from icing up

THE BEST DROP-IN REPLACEMENTS FOR HAYWARD HEATPRO AND HAYWARD SUMMIT HEAT PUMPS

Hayward continues its position as the industry leader in innovation with the introduction of the new HeatPro Series of electric heat pumps that utilize industry-first microchannel technology engineered to get your pool water to the perfect temperature. If you are looking to warm your water to extend swim season, cool your water in warm or arid climate conditions, or chill your water down to 40ºF for a cold plunge, we have the ideal lineup including three heat only options and three heat+chill options.

Hayward HeatPro® Titanium Heat Pump (110,000 btu)

HP21105T

Hayward HeatPro® Titanium Heat Pump (120,000 btu)

HP21205T

Hayward HeatPro® Titanium Heat Pump (140,000 btu)

HP21405T

Hayward HeatPro® Titanium Heat+Cool Pump (140,000 btu)

HP31405T