Air Source Heat Pumps

A silent pro model of a horizontal air source heat pump made by Norsup

Swimming Pool Heat Pumps

Owning a swimming pool in the UK requires an efficient and effective heating solution. At Mermaid Leisure, we specialise in specifying and installing air source heat pumps for all our new builds, as well as upgrading existing systems with the latest heat pump technology.

A swimming pool heat pump works like an air conditioning unit in reverse, transferring energy from the surrounding air into the water, to achieve your desired temperature. The fan expels air from the unit while drawing in air over the evaporator coil, transferring heat from the air outside to the refrigerant gas inside the pipes. This gas is then compressed, significantly increasing its temperature, and then passed through a heat exchanger that heats the pool water. Our state-of-the-art swimming pool heat pumps feature digital displays for easy temperature control. Our specialist F-gas registered engineers provide detailed instructions on using your unit and offer yearly servicing to maintain your warranty. 

Enjoy a heated pool year-round with our top-of-the-range air source heat pumps, ensuring your swimming pool with heating remains comfortable and energy-efficient.

Air Source Heat Pump Running Cost

Swimming pool heating is a topic of great concern for many of our clients. At Mermaid Leisure, we understand these concerns and ensure that all our swimming pool heat pumps are not only efficient in heating but also cost-effective to run. Your yearly running costs will depend on various factors such as pool size, air temperature, and the length of your swimming season. Although the upfront cost of an air source heat pump may seem daunting, the long-term savings far outweigh this initial expense compared to older styles of pool heating. Typically, a heat pump’s cost is about one-fifth of the cost of an electric heating system, meaning those savings add up quickly.

Our core Norsup range is 50% more energy efficient than standard heat pumps on the market. They are also equipped with the latest inverter technology, ensuring optimal efficiency at all times. Although costs vary depending on many factors, choosing a model with a high COP rating (efficiency) will always work in your favor when it comes to making savings. Our core range has some of the highest COP ratings on the market – up to 16! Not only are pool heat pumps cost-efficient, but they are also one of the most environmentally friendly heating options for your pool. All our heaters run on R32 gas, a much safer and more environmentally friendly refrigerant than traditional models. Our expert team of engineers is always on hand to help you decide on the best heating system for you and your pool.

A vertical air source heat pump made by Norsup
Dual Heatpump installation

Air Source Heat Pump Installation

At Mermaid Leisure, we excel in installing air source heat pumps for swimming pools, bringing years of experience and expertise to every project.

When building a new pool, your dedicated project manager will meticulously design and plan your plant room setup, including the heating system. We ensure the optimal positioning, clearances, and bases are in place for your swimming pool heat pump. If you need to replace your current system, our engineers will thoroughly assess the proposed location and prepare the base for your new unit. Our specialised electrical company handles all necessary electrical work, ensuring seamless integration.

One critical consideration for a heat pump swimming pool heater is its performance in varying ambient temperatures. As air temperatures drop, the heat output decreases, so we carefully choose and size your heat pump to handle the lowest expected temperatures. Our all-season models ensure you get the most from your pool year-round.

With Mermaid Leisure, air source heat pump installation is seamless and stress-free. We handle everything from unit specification and positioning to installation, allowing you to simply enjoy your warm pool water. Our efficient heating solutions are perfect for extending the UK swimming season and providing a cost-effective way to heat your pool or swim spa.

What We Offer

Pool Installation and Refurbs

We offer initial guidance, design, complete installation / refurbishment through to ongoing service and aftercare

Pool Lining and Tiling

Manufactured to a high commercial specification, and welded into your pool by our team, with 3D tactile-feeling stone effects. Mosaic and Large Format Tiling on new build steel reinforced concrete pools.

Air Source Heat Pumps

Our specialist in house technicians, repair, replace, & install air source swimming pool heaters. Full details on available on request.

Hot Tubs and Swim Spas

We offer expertise in Aquavia Spas, Caldera Spas and a variety of Swim Spas. Please contact us for further details

Home Saunas and Steam Rooms

Specialists in home saunas, steam rooms, steam showers and ice bath installation.

Automatic Covers

Manufacturer approved and trained for warranty, installation & repair: Aquamatic, Coverstar, Covrex & Poollock

Pool Enclosures

A full and extensive range of pool and hot tub enclosures, upgrading your pool to an all year-round experience

Outdoor Furniture

A full and extensive range of high-quality outdoor garden furniture, from dining sets to outdoor loungers.

Gyms and Fitness Equipment

Outdoor gyms and high-quality fitness equipment to complete your outdoor living dream.

Garden Buildings

Turnkey garden buildings, from summerhouses to fully insulated garden offices.


Shelters for your hot tub or outdoor kitchen. Motorised and retractable, get use from your garden all-year round. Contact us for more info.

Outdoor Kitchens

Create the ultimate outdoor experience, complement your pool with an outdoor kitchen. High quality, expertly crafted outdoor kitchens.

Get in Touch


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Mermaid Leisure Ltd, Oaklands Farm, Bodiam Rd, Sandhurst, TN18 5LE

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Mermaid Leisure Ltd Customer Privacy Notice


A cookie is a small file that contains letters and numbers that is downloaded on to your device when you visit a website. It is sent to your browser and stored on your computers hard drive, tablet or mobile device. When you visit our sites it can allow us to recognise and remember you.

Cookies help us analyse how visitors use our website, allowing us to continually improve to best meet our visitor’s needs. The information generated by the cookie about your use of the website (including your time and duration of visit, which pages you visited, browser used, IP address etc) will be stored on our server and will not be shared with third parties.

You may refuse the use of cookies at any time by selecting the appropriate settings on your browser.

Privacy Notice

This privacy notice tells you what to expect us to do with your personal information.

Contact details


Who we are

Mermaid Leisure Ltd offers construction, refurbishment and maintenance of swimming pools in Kent, England.

What information we collect, use, and why

When we refer to personal information we are referring to any information which identifies you as an individual. We may only hold and use personal data in your capacity as a consumer, business customer or when you visit our website.

We collect or use the following information to provide services and goods, including delivery:

• Names and contact details

• Addresses

• Date of birth

• Website user information (including user journeys and cookie tracking)

We collect or use the following information for the operation of customer accounts and guarantees:

We collect or use the following information for the operation of customer accounts and guarantees:

• Names and contact details

• Addresses

• Purchase history

• Account information, including registration details

We collect or use the following information for service updates or marketing purposes:

• Names and contact details

• Addresses

• Marketing preferences

• Recorded images, such as photos or videos

• Website and app user journey information

Lawful bases

Our lawful bases for collecting or using personal information to provide services and goods are:

  • Consent
  • Contract

Our lawful bases for collecting or using personal information for the operation of customer accounts and guarantees are:

  • Consent
  • Contract
  • Legitimate interest:

o We must have this information in case of any warranty claims later down the line.

Our lawful bases for collecting or using personal information for service updates or marketing purposes are:

  • Consent
  • Contract
  • Legitimate interest:

o So that our website users are always kept up to date and able to benefit from any special offers or specialist information we provide.

Where we get personal information from

People directly

How long we keep information

Personal information is stored for as long or short as necessary (usually dependent upon the warranty associated with your business relationship with us.) As some of our warranties are 50 years, necessary information, (usually names and addresses) will be kept for this period and purpose.

Who we share information with

We do not sell or rent any information collected. We may use third parties such as standard across websites, such as google analytics to monitor traffic and use of our website. If you submit personal identifiable information to us through our web form this information will be protected in accordance with this policy.

Data processors


This data processor does the following activities for us: Our accounting software

Others we share personal information with

Warranty and guarantee providers

Your data protection rights

Under data protection law, you have rights including:

Your right of access – You have the right to ask us for copies of your personal data.

Your right to rectification – You have the right to ask us to rectify personal data you think is inaccurate. You also have the right to ask us to complete information you think is incomplete.

Your right to erasure – You have the right to ask us to erase your personal data in certain circumstances.

Your right to restriction of processing – You have the right to ask us to restrict the processing of your personal data in certain circumstances.

Your right to object to processing – You have the right to object to the processing of your personal data in certain circumstances.

Your right to data portability – You have the right to ask that we transfer the personal data you gave us to another organisation, or to you, in certain circumstances.

Your right to withdraw consent – When we use consent as our lawful basis you have the right to withdraw your consent.

You don’t usually need to pay a fee to exercise your rights. If you make a request, we have one calendar month to respond to you.

To make a data protection rights request, please contact us using the contact details at the top of this privacy notice.

How to complain

If you have any concerns about our use of your personal data, you can make a complaint to us using the contact details at the top of this privacy notice.

If you remain unhappy with how we’ve used your data after raising a complaint with us, you can also complain to the ICO.

The ICO’s address:

Information Commissioner’s Office

Wycliffe House

Water Lane




Helpline number: 0303 123 1113