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Why Heat Pumps For Swimming Pools?

Compared to all other heating alternatives, ground-source heat pumps for swimming pools are the best heating solution for providing hot water for leisure, while dramatically reducing the energy consumption associated with heating up a hot tub or a swimming pool.

As most indoor swimming pools in the United Kingdom are used throughout the year, making use of an energy-efficient heating solution such as ground source heat pumps is an obvious choice.

Heat Pumps & How To Minimise Heat Losses In Your Swimming Pool

When installing heat pumps for a swimming pool, the pool’s heat loss must be considered, as that will determine the size of the heat pump necessary. The temperature loss of a swimming pool will depend on the quality of the insulation installed.

When it comes to new swimming pools that have been well-insulated, excluding dehumidification, the load necessary to heat up the water is calculated using 1kW of energy for every five cubic meters of water.

For existing swimming pools, determining the heat loss can be more challenging as the insulation might be waterlogged. In such a case, the heating load of such a swimming pool must be calculated by a trained professional.


How To Minimise Condensation

Considering the dehumidification load of an indoor swimming pool is equally as important as the heating load of the pool as neglecting it can cause a lot of costly damage to your property over time.

If you have an indoor swimming pool and have not taken into consideration the humidity generated by the warm water, that can lead to corrosion in the walls or floor, bacteria build-up, mould, and wood rot.

To account for the condensation generated by the indoor swimming pool, a dehumidifier is necessary. When shopping for such an appliance, it’s important to consider the swimming pool’s surface area.

Based on that, you can estimate the amount of water vapour your swimming pool can produce each day. We’d recommend going for a dehumidifier sized for a temperature of between 35 and 40 degrees Celsius as opposed to the ‘off the shelf’ units, which normally operate at 82 degrees Celsius.

Avoiding Corrosion

Nearly every swimming pool has chlorine in the water to kill germs. While the benefits of chlorine are obvious, if the pool is not maintained properly, the presence of chlorine can start to corrode pipework in the pool.

To avoid corrosion in a swimming pool, regular maintenance, proper stainless steel piping, and control of the pool environment must be practiced. Simple procedures such as wiping down surfaces or hosing with fresh water can be super effective at removing chlorine and preventing corrosion.

The importance Of keeping the Swimming Pool Heating System Separate

Experts recommend keeping your swimming pool’s ground source heat pump separate from your property’s heating system. This will prevent the systems from interfering or competing for energy derived from the ground.

That means that if you want to keep the pool warm, for example, it won’t use up all of the ground energy that would have otherwise been used to heat up the house. Besides, if either heat pump breaks, the other one will remain functional. So, keeping each pump separate is overall a good idea.

What About Outdoor Pools?

When it comes to outdoor swimming pools, thermal heat or air source heat pumps are generally the most efficient way to keep them heated up as they are only used for a few months during the summer.

As far as the heat loss associated with outdoor pools is concerned, it can be quite hard to calculate due to the atmospheric irregularities throughout any given day of the year. As a result, it’s crucial to seek further advice from the swimming pool designer.

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To give our heat pumps customers complete peace of mind. Following installation, commissioning and a 6 month run-in period the actual performance will be assessed against predicted performance. If the heat pump does not meet the guaranteed performance we will refund the cost of the heat pump and remove it from site.


Clade is the UKs leading manufacturer of natural refrigerant heat pumps. With significant R&D, field trials and a proven deployed portfolio of over 500 natural refrigerant appliances there are no other UK manufacturers that come close to our expertise and experience.

Operating on a national basis from our green manufacturing Technology Centre in Leeds and our Head Office in Bristol, which has achieved CEEQUAL status and the internationally recognised BREEAM Excellent standard, we design, manufacture, supply and maintain heat pumps and refrigeration around the world.


“Over the past year TRIOS and Clade Engineering Solutions have worked closely together in delivering service to a range of retail and non-retail customers. Clade has proven to be a reliable partner and demonstrated its ability to react quickly and efficiently to customer requests and problems. Through system usage and great communication Clade has rapidly evolved as a partner of choice to TRIOS. The fact that Clade has both service and installation capabilities has given TRIOS confidence that we can rely on them in every situation, where our customers have a refrigeration or mechanical problem. Clade repeatedly demonstrates its customer focused credentials and continues to give great focus and service to TRIOS and our customers.”

Jeff Alden – Managing Director, Trios Group

Wm. Morrison Supermarkets Plc

“Clade have completed new installations on large stores, and refurbishment work within our main estate, and have many more planned in the future.

Their communication, efficiency and can do attitude make them a key strategic partner in our future within both M-Local and main estate. The key to their success with Morrisons is their transparency, and honesty. Nothing is hidden, and no conversations are off limits, they, as a team, are willing to bring new ideas to the table to make efficiencies, and also accept learnings from other teams to improve themselves.

I have absolutely no qualms in recommending them for any work, and hope that you consider them as the added benefit they can bring is invaluable.”

Tom Monaghan – Construction PM & Programme Manager, Wm Morrison Supermarket


“Clade have proved themselves to be a competent and diligent contractor for Marks and Spencer, their work has been delivered to a high standard with quality being the focus. Their deliver of M&S high profile stores has surpassed performance expectations. Clade has proved itself as a growing contractor with a bright future.”

Peter Garner – Marks & Spencer

CTS Shopfitting Ltd

“We have worked with Clade on numerous Co-op projects throughout many years and find them to be very professional and reliable with excellent communication both on and off site. The project management team work alongside ourselves and are very proactive when required.”

Martyn Clark – CTS Shopfitting Ltd

Key Property Solutions Ltd

“Thank you for the excellent work you did at M-Local Doncaster. It made a refreshing to change to come across a contractor who could adapt to change as speedily as yourselves and reacted pro-actively to anything that was required. I look forward to working with Clade again in the future.”

Lol Johansen – Key Property Solutions Ltd (Bowmer & Kirkland subsidiary)


“Clade Refrigeration (now Clade Engineering Solutions) has worked for The Co-operative Group for over 12 years. In this period they have delivered a large number of projects, some of these being high profile developments which have been installed to a very high standard indeed. Their willingness to help and Give support to the client, associated suppliers and the wider industry is noticeable, whilst they also take the time to give valuable feedback on new innovations and products. They have proved themselves in all instances to be a partner and a contractor that repeatedly delivers to the highest standards.”

Bill Watson – The Co-operative Group


Clade Engineering is able to provide heat pumps as either air, ground, or water source. The most suitable type of heat pump depends on several factors related to your property. Generally, air source heat pumps are the most popular because they have the fewest requirements to install. Any type of heat pump can provide hot water and heating to your building.

Heat pumps using CO2 refrigerant as the heat source are friendly to the environment because the CO2 they use stays contained within the appliance and does not get released into the atmosphere. Furthermore, the CO2 we use in our heat pumps has the lowest global warming potential (GWP) of 1 compared to 1000’s for other refrigerants which will all significantly reduce the carbon footprint of your building.

Clade are the industry leaders in heat pump technology. As the heat in buildings challenge became clearer, Clade began the R&D for a new range of heat pumps which would provide a solution for a growing market. The first heat pump was installed in a Co-Op store and achieved a staggering SCOP of 3.7. We have over 36 years of experience and all of our systems are designed and manufactured in the UK.

Our heat pumps meet environmental standards by using a natural refrigerant like CO2. It has a Global Warming Potential (GWP) of 1, which reduces both cost and emissions.

Clade offers a full start to finish heat pumps solution. Our team of engineers design your system, manufacture and supply your heat pumps from our product range, our installation team ensures your heat pump is fully functional and our after sales support team provides ongoing maintenance. You can pick and choose as many or as few of our services to suit your requirements.We ensure that your heat pump system continues to function. Our heat pumps can generate heat from 50kW to multi mega-watt, with a maximum water temperature of over 80 degrees Celsius and a minimum external air temperature of -20 degrees Celsius. Each of our heat pumps also comes with total cooling recovery to ensure a high quality of continued functionality.


Speak with our team of experts and discuss your requirements. Complete this quick form and we will be in touch or contact us using:

0113 887 9604

Bristol & Bath Science Park
Dirac Crescent, Emersons Green
Bristol, BS16 7FR

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