Holiday parks and campsites

The problem

Outdoor pools need heating for comfort, but as the heat is lost to the atmosphere, new energy must be constantly supplied to keep the pool heated. How can the energy usage and heating costs be minimised?

The solution

Heat pumps are recognised as the most sustainable way to dynamically heat swimming pool water and with a Calorex heat pump you will save both energy and operating costs. Calorex Pro-Pac heat pumps are available for seasonal use during typical outdoor pool summer seasons, for long seasons and even for all year round enjoyment.

Heat pumps

Calorex Pro-Pac commercial swimming pool heat pumps are specifically designed to economically provide swimming pool water heating to high use pools, and larger pools such as those in campsites, leisure parks, water parks and hotels.

Calorex Pro-Pac commercial heat pumps are designed to work during warmer times of year when air temperatures are above 10°C. Pro-Pac heat pumps are suitable for outdoor pool heating or pools with a semi-permanent enclosure to extend the usable period of a normal outdoor pool.

Calorex Pro-Pac Y commercial heat pumps are designed to operate in air temperatures as low as -15°C and are suitable for heating outdoor pools all year round, as well as indoor pools.

Calorex (swimming pool) heat pumps can save up to 75% for both operating costs and carbon savings against direct electric heaters, and up to 47% operating cost saving against fossil fuel boilers and up to 60% carbon saving against fossil fuel boilers (based on UK energy costs).


Pro-Pac heat pumps are easy to install on new pools and to retrofit for existing swimming pool systems, with minimal maintenance required. On the basis of pool surface area, water temperature, local climate, season of use and bathing activity, Calorex heat pumps can be designed to accommodate any requirement.

All products are supported by an in-house applications department, distributors and service network.

Associated products

HRD System


The HRD range are sophisticated air handling units incorporating hybrid heat pump and fresh… ...read more

Delta System


The Delta range are sophisticated air handling units incorporating hybrid heat pump and… ...read more

Variheat III


The Variheat range are sophisticated air handling units incorporating heat pump dehumidification… ...read more

DH33/55 wall mounted

DH 33

The DH 33 is a high performance, low cost wall mounted dehumidifier with integrated air… ...read more

Floor standing DH75/110

DH 75AX-110AX

The DH 75 and DH 110 are floor standing high performance and high capacity dehumidifiers.… ...read more

Pro-Pac 8-22

Pro-Pac 8-22

​​Pro-Pac heat pumps are specifically designed for swimming pool heating. Heat… ...read more

DanX 1/2/3 XD

The DanX XD compact units are energy and cost-efficient solutions that combine ...read more


The DanX units are a great solutions for controlling the relative humidity and fresh air ...read more


The DanX XWPS combines the advantages of a heat pump and an outside air dehumidification ...read more

More information

Kelling Heath

Swimming conditions for guests...read more

Crow's Nest Caravan Park

Calorex has helped breathe...read more


Product Catalogue...read more

Dantherm Brochure

DanX swimming pool air management systems...read more


Contact (UK)

Certikin International Ltd (H&V Department) 01993 778855
Contact Certikin

Contact (International)

+44 (0)1621 856 611
International Enquiries

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