What is a Heat Pump for a Pool?

Owning a swimming pool in Australia is a luxury that allows for relaxation, exercise, and family fun. However, maintaining an ideal water temperature year-round can be a challenge, especially during the cooler months. This is where pool heat pumps come into play. 

Understanding what a heat pump for a pool is, how it works, and its benefits can help you make an informed decision about your pool heating options.

The Basics of the Heat Pump

What is a heat pump for a pool? A heat pump for a pool is a device that transfers heat from the surrounding air to the pool water. Unlike traditional pool heating methods that generate heat, a pool heat pump works by using electricity to change heat. This process makes heat pumps an energy-efficient and environmentally friendly option for maintaining comfortable swimming temperatures.

Benefits of Heat Pumps

Energy Efficiency and Cost Savings

One of the primary benefits of heat pumps is their energy efficiency. Heat pumps can produce multiple units - sometimes as many as 10 - heat energy for every unit of electricity consumed. This efficiency translates into significant cost savings over time, especially when compared to gas or electric resistance heaters.

Consistent and Reliable Heating

Heat pumps provide consistent and reliable heating, allowing you to enjoy your pool year-round. Unlike solar heaters that depend on sunlight, heat pumps can operate in various weather conditions, maintaining a steady water temperature regardless of the season.

How Heat Pumps Work

The operation of a heat pump involves a series of steps that efficiently transfer heat from the air to the pool water:

  1. Air Intake: The heat pump draws in outside air through an evaporator coil.
  2. Heat Absorption: The refrigerant in the coil absorbs heat from the air, causing it to evaporate.
  3. Compression: The heated refrigerant gas is then compressed, increasing its temperature.
  4. Heat Exchange: The hot gas passes through a heat exchanger, transferring heat to the pool water.
  5. Cycle Continuation: The refrigerant cools and returns to its liquid state, ready to absorb more heat, and the cycle repeats.

Breaking Down Other Heating Solutions

When choosing a pool heater, it's essential to compare heat pumps with other available options:

Solar Heaters

Solar heaters use solar panels to capture and convert sunlight into heat. While they are highly efficient and eco-friendly on sunny days, their performance drops significantly during cloudy or rainy weather. Solar heaters also require a large installation area for the panels, which may not be feasible for all property owners.

Gas Heaters

Gas heaters burn natural gas or propane to generate heat. They can quickly raise the water temperature, making them ideal for on-demand heating. An example of where this type of ‘on-demand’ heating is common in a spa. 

However, gas heaters have higher operational costs due to fluctuating fuel prices and are less environmentally friendly compared to heat pumps.

Electric Resistance Heaters

Electric resistance heaters use electrical currents to generate heat. They are effective for small pools or spas but are not as energy-efficient as heat pumps. 

The high operational costs associated with electric resistance heaters make them less suitable for long-term use in larger pools.

Things To Consider with Pool Heat Pumps

Climate Suitability

Australia's diverse climate makes heat pumps an excellent choice for pool heating. What is a heat pump for a pool if not a versatile solution that operates efficiently in temperatures as low as 10°C? This makes them suitable for use in most regions. 


What is Required for Installation

Installing a heat pump involves several considerations:

  • Location: The heat pump should be placed in an area with adequate airflow to ensure optimal performance.
  • Electrical Supply: Ensure that your home’s electrical system can handle the additional load of the heat pump.
  • Space: Adequate space around the unit is necessary for maintenance and air circulation.

Professional installation is recommended to ensure that the heat pump is set up correctly and operates efficiently.

Maintenance and Longevity

Heat pumps require regular maintenance to keep them running efficiently. Some maintenance tasks include:

  • Cleaning the Flow Valve: A heat pump relies on flow through it to transfet the heat of the ambient air to the pool water. If the flow valve is dirty, it can cause the heat pump to fault with a ‘flow error’.
  • Checking Refrigerant Levels: Ensure the refrigerant levels are adequate for efficient operation.
  • Inspecting the Unit: Periodically inspect the unit for any signs of wear or damage.

With proper maintenance, heat pumps can last 10-15 years, making them a durable and long-term investment for your pool.

Costs Involved with Heat Pumps

The Costs Involved with Heat Pumps

Initial Investment vs. Long-Term Savings

The initial cost of a heat pump can be higher than other heating options. However, the long-term savings on operational costs can offset this initial investment. Over time, the energy efficiency of heat pumps results in lower electricity bills, making them a cost-effective choice for many pool owners.

Typical Running Costs

The running costs of a heat pump depend on several factors, including the size of your pool, the desired water temperature, and local electricity rates. On average, heat pumps cost less to operate than gas heaters and electric resistance heaters, providing a more affordable heating solution over the pool's lifespan.

Potential Government Incentives or Rebates

In some regions, government incentives or rebates are available for installing energy-efficient appliances, including heat pumps. Check with your local authorities or energy providers to see if you qualify for any financial assistance or rebates that can reduce the overall cost of installing a heat pump.

Environmental Impact

Reduction in Carbon Footprint

By harnessing heat from the air, heat pumps significantly reduce the carbon footprint associated with pool heating. While they do use electricity, their efficiency and reliance on renewable energy sources result in lower greenhouse gas emissions compared to traditional heating methods. This makes heat pumps a more environmentally friendly option for maintaining a comfortable pool temperature.

Use of Renewable Energy Sources

Heat pumps can also be connected to solar panels, providing an even more environmentally friendly solution. By operating efficiently and utilising clean energy, heat pumps offer a green alternative for maintaining your pool's temperature while supporting broader renewable energy initiatives.

Heat Your Pool More Efficiently with Pool Assist

Are you ready to upgrade your pool heating system to a more efficient option? Discover the benefits of heat pumps and how they can transform your swimming experience. At Pool Assist, we offer top brands like Astral, Zodiac, Evoheat and Genesis, known for their reliability and efficiency. 


Learn more about what a heat pump for a pool can do for you and find the perfect solution tailored to your needs. Extend your swimming season with a heat pump for your pool today. Contact us for more information and or for faster processing time, fill out our service form or come into our store.

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