Inverter Pool Heat Pump: 11 Facts You Should Know

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By Debarghya Roy

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Swimming pool owners are always on the hunt for energy-efficient solutions to maintain desired water temperatures while reducing operating costs. 

In this blog post, we’ll dive deep into how these cutting-edge devices work, highlight their numerous benefits such as cost savings and quieter operation, and compare them with standard and solar pool heat pumps. 

Key Takeaways 

  • Inverter pool heat pumps are an eco-friendly and energy-efficient solution for heating outdoor swimming pools, designed to extract warmth from the air and transfer it into the pool water.
  • Compared to traditional on/off heat pumps or fossil fuel-based alternatives, inverter pool heat pumps can deliver significant cost savings on energy bills while also reducing carbon footprint.
  • In addition to outstanding energy efficiency, inverter pool heat pumps offer quieter operation and a longer lifespan than their standard counterparts due to variable speed compressors that adjust output.
  • Despite their higher initial cost compared to standard models, investing in a reliable brand’s inverter+ range model ensures optimal water temperature control throughout the year with minimal maintenance required.

What Is An Inverter Pool Heat Pump?

An inverter pool heat pump is an energy-efficient solution for heating outdoor swimming pools, which uses advanced heat pump technology to extract warmth from the air and transfer it into the pool water.

Inverter Pool Heat Pump

Basic Operating Principle Of Heat Pumps For Outdoor Swimming Pools

Heat pumps have become an increasingly popular choice for heating outdoor swimming pools, thanks to their energy efficiency and cost-saving abilities. 

These devices operate by utilizing the basic principle of heat transfer, which involves capturing ambient warmth from the surrounding air and then transferring it into your pool water.

To understand how heat pumps work, we must first delve into their core components: the evaporator coil, compressor, condenser coil, and expansion valve

The ambient air is drawn over the evaporator coil by a fan; this air contains low-temperature thermal energy that warms the refrigerant within the coils.

Once warmed sufficiently, this refrigerant gas moves onward to the compressor where it is pressurized and its temperature increases further.

How Do Inverter Pool Heat Pump Work?

Inverter pool heat pumps work by harnessing the power of advanced inverter technology, which allows for variable speed operation of their components, such as the fan and compressor.

This means that instead of operating at a constant speed like traditional heat pumps, an inverter pool heat pump can adjust its speed based on the current temperature and heating demands of your swimming pool.

The process begins when outside air is drawn into the unit through a series of fans. As this air passes over an evaporator coil filled with refrigerant coolant.

It absorbs heat from the surrounding environment and transfers it to the water inside your swimming pool.

In contrast to standard on/off heat pumps that operate at full capacity all the time, inverter pool heat pumps continuously adjust their output depending on factors such as outdoor air temperature and desired water temperature.

Benefits Of Inverter Pool Heat Pumps

Inverter pool heat pumps offer numerous benefits, including energy efficiency and cost savings, quieter operation, and longer lifespan.

Energy Efficiency And Cost Savings

  • Inverter pool heat pumps are known for their remarkable energy efficiency and cost-saving benefits. 
  • By utilizing advanced inverter technology, these heat pumps can intelligently adjust their output to maintain the desired pool temperature without constantly running at full capacity.
  • For example, an Inverter+ pool heat pump achieves a Coefficient of Performance (COP) ranging from 6.4 to 16.0, meaning that it can generate up to 16 units of heat for every unit of electricity consumed.
  • As a result, many homeowners experience significant savings on their energy bills when making the switch to an inverter pool heat pump system. 
  • Additionally, this eco-friendly heating solution reduces your carbon footprint by consuming less electricity than standard heaters or gas boilers.

Quieter Operation

Inverter pool heat pumps are known for their low noise levels compared to standard heat pumps. 

With noise levels ranging from 22-35 dB(A), they operate at a volume similar to a quiet whisper or rustling leaves.

In addition, many inverter pool heat pump models have innovative capabilities that enable further reduction in operational sound. 

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      The Inverter+ range from HeatPumps4Pools features brushless fan motors and heavy-duty mounting feet designed for vibration absorption, resulting in an even quieter operation.

Longer Lifespan

Inverter pool heat pumps are known for their durability and long lifespan, which is a significant advantage over traditional pool heaters

These heat pumps feature high-quality materials that can withstand harsh weather conditions and extended use.

For instance, SPRSUN Heat Pump Manufacturer offers reliable and durable inverter pool heat pumps with features like anti-corrosion coatings, titanium exchangers, and advanced controls to extend their lifespan.

With proper installation and regular maintenance such as cleaning filters regularly, your inverter pool heat pump can last up to 20 years or more without requiring major repairs or replacement.

Energy Efficiency: Inverter Pool Heat Pump Vs Other Heat Pumps

Differences in operation and efficiency between inverter pool heat pumps and standard pool heat pumps can significantly impact energy consumption, noise levels, and overall performance. 

The table below highlights the key differences.

FeatureInverter Pool Heat PumpStandard Pool Heat Pump
Energy EfficiencyHigher efficiency due to variable speeds; COPs range from 6.4 to 16.0.Lower efficiency; typically have COPs below 6.
Energy ConsumptionReduced energy consumption due to output adjustment capabilities.Higher energy consumption as they run at a constant speed.
Noise LevelsQuieter operation ranging from 22-35dB(A).Louder operation due to constant speed.
PerformanceVariable speeds allow for improved performance and extended lifespan.Constant speed can lead to less reliability and shorter lifespan.
Compressor and Fan MotorMitsubishi inverter compressor and brushless fan motor for increased efficiency.Standard compressor and fan motor without inverter technology.
Warranty3-year general warranty and 10-year warranty on heat exchanger and compressor.Warranties may vary, generally shorter than inverter pool heat pumps.

Comparison Of Costs And Benefits: Inverter Pool Heat Pump Vs Other Heat Pumps

When comparing inverter pool heat pumps to standard pool heat pumps, there are several factors to consider in terms of costs and benefits. 

The table below summarizes these factors, making it easier for pool owners to make an informed decision.

FactorInverter Pool Heat PumpStandard Pool Heat Pump
Initial CostHigher initial costLower initial cost
Energy EfficiencyUp to 75% more energy-efficientLess energy-efficient
Operating CostLower operating cost due to higher efficiencyHigher operating cost due to lower efficiency
Noise LevelQuieter operation (22-35db(A) at 10m)Louder operation
LifespanLonger lifespan due to less wear and tear on componentsShorter lifespan due to more frequent on/off cycles
Operating Temperature RangeOperates in temperatures as low as -7cMay struggle in colder temperatures
Warranty3-year general warranty, 10-year warranty on heat exchanger and compressorWarranty may vary

Pros And Cons: Inverter Pool Heat Pump Vs Solar Pool Heaters

To help you make an informed decision on the best pool heating method for you.

Let’s take a look at the pros and cons of inverter pool heat pumps and solar pool heat pumps.

Heating MethodProsCons
Inverter Pool Heat PumpEnergy-efficient due to variable speed control

Cost savings from reduced heat output

Quiet operation

Operates in low temperatures

Longer lifespan with a soft start

High COPs

Various sizes and options available
Higher upfront cost compared to standard heat pumps

May require professional installation

Not completely reliant on renewable energy
Solar Pool Heat PumpRelies on renewable energy (sunlight)

Low operating costs


No emissions
Higher maintenance costs

Less effective during winter and cloudy days

Large space required for solar panels

May require additional equipment (e.g., booster pumps)

Longer payback period due to high installation cost

Which Option Is Best For Your Pool?

When it comes to choosing between an inverter pool heat pump or a solar pool heat pump, there are several factors to consider. 

In general, if you live in an area with plenty of sunshine and have a small pool, a solar pool heat pump may be the more cost-effective option.

However, for larger pools or areas with less sunlight, an inverter pool heat pump offers better energy efficiency and ROI.

It’s important to remember that while solar panels require minimal maintenance, they can be affected by weather conditions and may not work as effectively during cloudy days or at night.

Factors To Consider When Choosing A Right Inverter Pool Heat Pump

When choosing an inverter pool heat pump, there are several factors to keep in mind. Here are the key factors that you should consider: 

Pool size

The size of your pool will determine the size and power output of the heat pump you need. It’s crucial to choose a model that can handle your pool’s heating requirements without being overpowered or underpowered.


Your geographical location affects how much energy is required to heat up the pool, which can impact which type of heat pump you should choose.

Operating costs

Inverter pool heat pumps typically have lower operating costs than other traditional heaters, so it may be a wise investment in the long run.

Noise levels

If you have close neighbors or prefer a quieter environment while enjoying your pool, look for an inverter pool heat pump that operates at low noise levels.

Energy efficiency

Consider the COP (Coefficient of Performance), which measures the efficiency of your inverter pool heat pump in converting electricity into heat.

Warranty and technical support

Ensure that your chosen brand has a reliable warranty and excellent technical support if needed.

Installation requirements

A professional installation team is necessary to maximize your unit’s performance and ensure it is fitted correctly with no safety hazards involved anywhere on or around it.

Importance Of Proper Sizing

Choosing the right size of inverter pool heat pump is crucial for efficient and effective pool heating. 

A unit that is too small may not be able to keep up with demand, while an oversized unit can lead to unnecessary expenses, noise levels, and reduced efficiency.

For example, 

A smaller 11kw model from SPRSUN Heat Pump Manufacturer’s Inverter+ range would be suitable for a small or medium-sized outdoor swimming pool or spa measuring up to 20-28m3 in volume.

On the other hand, larger pools ranging from 128-169m3 in volume require higher output models like the 36.5kw option available on the Inverter+ range.

Installation And Maintenance Of Inverter Pool Heat Pumps

Professional installation of inverter pool heat pumps is required to ensure optimal performance and longevity, while routine maintenance such as cleaning the air filter and checking refrigerant levels can help prevent issues and extend the lifespan of the system.

Professional Installation Requirements

  • Professional installation is necessary to ensure the efficient and safe operation of inverter pool heat pumps. Here are some important points to consider:
  • Only a qualified and experienced technician should handle the installation and maintenance of the heat pump.
  • The technician should have knowledge of electrical and plumbing systems, as well as general pool installation procedures.
  • It’s important to follow the manufacturer’s instructions for installation and maintenance, which may include specific requirements for positioning and wiring.
  • Incorrect installation or maintenance can lead to reduced efficiency, appliance damage, or even safety hazards.
  • The technician should conduct a site survey before installing the heat pump to ensure that it will fit properly with other components such as filters, pipes, and valves.
  • They should also check that there is adequate clearance around the unit for ventilation and access for servicing.
  • The electrical supply must be correctly wired according to local regulations, with a suitable circuit breaker or fuse protection installed.
  • Pipework should be insulated according to specifications to minimize heat loss.
  • Once installed, the technician will need to test the system thoroughly before commissioning it for use in your pool.
  • HeatPumps4Pools provides technical support and advice on installing and maintaining inverter pool heat pumps, so you can be assured that you’re getting reliable information from trusted experts in the field.

Maintenance Tips For Optimal Performance Of Inverter Pool Heat Pump

To ensure your inverter pool heat pump operates at its best, regular maintenance is crucial. Here are some maintenance tips to keep in mind:

  • Keep the air filter clean by removing and cleaning it every few weeks during peak usage times.
  • Inspect the fan blades and lubricate the motor bearings if necessary.
  • Check for any damage or leaks on the heat pump’s exterior casing.
  • Regularly clean the evaporator and condenser coils with a soft brush or compressed air.
  • Ensure that there is proper airflow around the heat pump unit to avoid overheating.
  • Monitor the water chemistry levels regularly to avoid damage to the heat exchanger due to scaling or corrosion.
  • Winterize your pool heat pump before storing it away for colder months, following manufacturer instructions.

 Warranty And Technical Support For Inverter Pool Heat Pump

The Inverter+ range comes with a reliable 3-year general warranty and an impressive 10-year warranty on its heat exchanger and compressor, ensuring you can enjoy hassle-free heating for many years to come.

Importance Of A Reliable Warranty

For example, 

The Inverter+ range of pool heat pumps from HeatPumps4Pools comes with a 3-year general warranty and an impressive 10-year warranty on the heat exchanger and compressor.

Availability Of Technical Support And Assistance

HeatPumps4Pools provides free technical support for customers before and after purchasing an inverter pool heat pump, ensuring they have the necessary assistance with their equipment.

This means that if you encounter any problems with your heat pump, you can contact HeatPumps4Pools at any time and get professional advice on how to solve the issue.

To further assist customers, HeatPumps4Pool offers a free heat pump sizing service to ensure that the recommended pool heater will meet and exceed specific requirements.

The Inverter+ range also includes optional extras such as heavy-duty mounting feet and bypass kits. If you are based in the UK, Heatpumps4Pools offers free delivery of the Inverter+ range for orders over £50.

Optional Features And Accessories Of Inverter Pool Heat Pump

The Inverter Pool Heat Pump range also offers optional features and accessories such as Wi-Fi control capabilities and a winter cover, making it a flexible and convenient investment for any pool owner.

Wi-Fi Control Capabilities

  • With the Inverter+ range of inverter-driven pool heat pumps, you have the option to control and monitor your pool’s temperature from anywhere using a smartphone app. 
  • This Wi-Fi control capability provides convenience and flexibility, allowing you to adjust your pool’s heating settings even if you’re not at home.
  • The Inverter+ range also offers optional features such as heavy-duty mounting feet and a bypass kit. 
  • These accessories enhance the durability and performance of your inverter pool heat pump by protecting it from wear and tear caused by exposure to elements like wind, rain, or snow.

Winter Cover And Other Optional Extras

Customers have the option to purchase heavy-duty covers and other optional extras to ensure added protection and optimal performance. Here are some of the available options:

  1. Heavy-duty covers – Customers can purchase heavy-duty covers for added protection against harsh winter weather.
  2. Bypass kit – This is an optional extra that allows customers to bypass their existing plumbing pipework, making it easier to install and maintain their inverter pool heat pump.
  3. Heavy-duty mounting feet – These are extra-strong mounting feet that provide added support and durability for larger or heavier inverter pool heat pump models.
  4. Heat retention covers – These are designed to retain heat overnight, reducing energy costs by maintaining pool temperature while preventing heat loss.
  5. Air flow hoods – These help reduce noise levels by directing airflow away from the pool area, ensuring quieter operation of the inverter pool heat pump.


What is an inverter pool heat pump and how does it work?

An inverter pool heat pump is a type of heating system that utilizes advanced technology to efficiently regulate the temperature of your swimming pool water. 

It operates by taking warm air from the surrounding environment, compressing and transferring it via refrigerant coils into the water before releasing cooler air back outside.

 What are some advantages of using an inverter pool heat pump?

Some advantages include lower operating costs, higher energy efficiency ratings, longer lifespan than traditional models, quiet operation levels compared to gas heaters or electric resistance pumps.

Can I use an inverter pool heat pump on any size or type of swimming pool? 

There are different sizes available for various pools based on climate conditions and total volume but not all types – liners with high evaporation rates may need additional insulation.

 How often should I maintain my inverter pool heat pump? 

Typically this would depends upon usage but performing regular maintenance every 3-6 months can help preserve components and avoid issues related to clogs or other performance problems over time due lack of attention towards wear-and-tear overtime.

What is an inverter pool heat pump?

An inverter pool heat pump is a type of swimming pool heater that uses inverter technology to regulate the temperature of the water.

How does an inverter pool heat pump work?

An inverter pool heat pump works by capturing heat from the air outside and transferring it to the water in the swimming pool.

What are the benefits of using an inverter heat pump for my swimming pool?

Inverter heat pumps allow for consistent, energy-efficient heating of your swimming pool. They are also more environmentally friendly than other pool heaters, such as gas heaters.

How do I get more information about inverter pool heat pumps?

You can find information about inverter pool heat pumps online or by contacting a pool equipment supplier.

Can I operate an inverter pool heat pump myself, or do I need to hire a professional?

While it is possible to install an inverter pool heat pump yourself, it is recommended that you hire a professional to ensure proper installation and operation.

What is the best inverter pool heat pump on the market?

The best inverter pool heat pump for your swimming pool will depend on a number of factors, including the size of your pool and your budget. It is recommended that you consult with a pool equipment supplier to find the best product to meet your specific needs.

How do I use an inverter pool heat pump?

Once your inverter pool heat pump is installed, you simply need to set the desired temperature for your swimming pool. The heat pump will automatically adjust the water temperature to match your settings.

What is the latest technology in inverter pool heat pumps?

The latest technology in inverter pool heat pumps includes features such as WiFi connectivity, remote control, and advanced programming options.

How does an inverter heat pump compare to other swimming pool heating options?

Inverter heat pumps are generally more efficient and environmentally friendly than other swimming pool heating options, such as gas heaters or electric resistance heaters. They also offer consistent and reliable temperature control.

What is the return on investment for an inverter pool heat pump?

The return on investment for an inverter pool heat pump will depend on a number of factors, including the size of your pool, the electricity used to operate the heat pump, and the local climate. 

However, with energy savings of up to 25%, an inverter heat pump can provide significant long-term savings for pool owners.


Inverter pool heat pumps are the ultimate solution for anyone looking to minimize their energy expenses while keeping their outdoor swimming pool at a comfortable temperature.

Heat Pump