Heating your swimming pool with a heat pump: how much does it cost?

Having a swimming pool is a real pleasure, but to enjoy it to the full, it is often necessary to heat it. Among the solutions available, heat pumps are one of the most popular, as they are both efficient and energy-saving. But what is the real cost of a swimming pool heat pump? Is it a profitable investment in the long term?

The price of a heat pump

The price of a swimming pool heat pump varies according to several criteria:

  • The power of the unit (expressed in kW), which depends on the volume of water to be heated
  • The brand and technology (standard or inverter model)
  • The options (automatic control, connectivity, silent mode, etc.)
  • The warranty and after-sales service conditions

Energy consumption: what to expect?

A heat pump works by extracting heat from the air and transferring it to the pool water. Its coefficient of performance (COP) is around 4 to 6, which means that for every 1 kWh of electricity consumed, it produces 4 to 6 kWh of heat.

The annual consumption of a heat pump depends on several factors:

  • The region and the outside temperature
  • The size and insulation of the pool (cover, bubble cover, etc.)
  • The desired temperature (water at 28°C costs more than water at 25°C)
  • The period of use of the heat pump

How can you reduce the cost of heating your swimming pool?

To optimise the performance of your heat pump and reduce your electricity bill, here are a few tips:

  • Use a thermal cover: A bubble cover or roller shutter prevents heat loss and reduces consumption by up to 60%.
  • Choose the right size heat pump: An overpowered pump costs more to buy, while an undersized heat pump will run continuously and consume more energy.
  • Choose an inverter heat pump: This technology adapts the heating power to your needs, reducing energy consumption.
  • Optimise operating hours: Use the heat pump during your electricity supplier’s off-peak hours.

Heating your pool with a heat pump: a worthwhile investment?

Despite the initial cost, heat pumps remain the most economical pool heating system in terms of running costs. Compared to electric or gas heaters, heat pumps consume 4 to 6 times less energy.

On average, a heat pump pays for itself in 3 to 5 years, depending on the price of electricity and frequency of use.

Polytropic solutions

Polytropic has been designing and manufacturing swimming pool heat pumps for over 20 years. As a designer and manufacturer, we are committed to offering innovative, high-performance products to meet your needs.

Our inverter heat pumps are powerful, economical and environmentally friendly. Thanks to full inverter technology and PolySmart Control, the heat pump automatically adjusts its power according to actual needs, ensuring a higher average COP over the season and thus optimal thermal comfort while significantly reducing energy consumption and noise pollution.

By combining our pool heat pumps with our photovoltaic solutions specially designed for swimming pools, you can achieve even greater energy savings.

A concrete example

For example, to heat a 45 m³ swimming pool with a POLYTROPIC Master-Inverter S heat pump under standard conditions of use*, the estimated annual consumption of the heat pump will be approximately €249 including VAT.

With the complete, ready-to-use ‘plug & play’ photovoltaic kit comprising 1 or 2 PolySolar LITE panels from POLYTROPIC, dependence on the electricity grid is reduced, meaning that electricity bills can be lowered.

With the installation of 1 to 6 panels and POLYTROPIC’s patented PolySolar Energy System photovoltaic energy management system, electricity consumption is optimised by partially disconnecting from the electricity distribution network, enabling self-consumption. Depending on the equipment installed, up to 100% of the energy required to operate your pool heating system can be supplied**.

* Swimming season from 15 May to 15 September in the south of France with water at 27°C / heat loss calculation based on average climatic conditions over the last 5 years – customer kWh cost – EDF base rate as at 01/01/2025: €0.2516.

** Over the season, subject to configurations and sunlight conditions and depending on the model installed.

Conclusion

Heating your pool with a heat pump requires an initial investment, but it is an effective and economical solution in the long term. By adopting the right habits to limit heat loss and choosing the right equipment, you can enjoy pleasant water temperatures without breaking the bank on your electricity bill.

So, are you ready to extend your swimming season?

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