The most economical way to keep your pool warm

With over 150 heat pumps in stock at any one time, Paramount is able to supply an air source heat pump to suit your needs and budget. We have an extensive network of heat pump engineers to cater for all your future servicing and back-up requirements.


Ultra Inverter Heat Pump Top Mount

Ultra Inverter Heat Pump - Top Mount

A new addition to the Waterco range the Elecro-heat Ultra Inverter heat pump has the flexibility to vary the speed of the fan motor and compressor to maintain a constant temperature allowing it to use less energy than conventional heat pumps. The Ultra adjusts the output from 50% to 100% depending on heat demand, thereby reducing energy consumption.

Aquaflow XL Inverter Heat Pump - Side Mount

The Electro Heat XL Eco Inverter heat pump has the flexibility to vary the speed of the fan motor and compressor to maintain a constant temperature allowing it to use less energy than conventional heat pumps. The heat pump adjusts the output from 50% to 100% depending on heat demand and environmental factors, thereby reducing energy
consumption. The fan is side mounted and the unit slim-line for ease of installation, XL has heat and cool function included.

Heat Pump Covers

Protective covers for your heat pump!

smart controls logo Smart Controls for temperature management and self-diagnosis

Safety logoInbuilt Safety Devices for water flow, refrigerant level and compressor startup delay

Heat transfer logoPowerful heat Transfer through the duel coil heat exchanger, maximising water contact

de icing logo Automatic Hot Gas De-Icing Heats your pool even when the ambient air temperature is close to zero.

duel coil logo Titanium Duel Coil Heat Exchanger is highly resistant to ozone, iodine, baquacil, salt and chlorinated water

Evaporator logo Large Evaporator Area to extract more ambient heat

scroll compressor logo Scroll Compressor for improved efficiency and high performance

waterproof logo  Weatherproof Cabinet for outdoor installation

refringent logo R410A Refrigerant, ozone friendly and maximises performance

warranty logo 5 Year Warranty – Residential 2 + 3 years and Commercial 1 Year



The longevity of Waterco heat pumps should be approximately 10-15 years with very little maintenance.

Like any electrical appliance, faults can arise for whatever reason, be it a component failure or lack of service etc. Up to now, your pool dealer has been reliant on either their own engineer or to outsource a refrigerant expert to service the heat pump (not easy to book in the middle of summer!). Paramount Pool Products (Sole UK Importer) have over 50 independent heat pump engineers located nationally, who will be able to service your heat pump (directly with you) in the future or in an event of a warranty failure. To date, 98% of our service requests are attended within 3-7 working days (summer or winter!).

All Waterco heat pumps have the following warranty on all models:-

Titanium Exchanger 10 Years
Compressor 3 Years
All Other Components 2 Years
Labour 1 Year

Export Warranty

We are aware that a number of heat pumps are purchased in the UK and exported to foreign destinations. Unfortunately, we are unable to offer recognised service agents engineers based is such locations and therefore, unable to honour labour costs. We are pleased to supply replacement parts only, under the warranty terms as above. All delivery costs to be paid by the consumer.


For further information about how heat pumps work please click here.

To calculate the size of heat pump you require please click here.

To see our swimming pool heating section please click here.

To arrange a service of your Heatpump click here


Waterco Domestic Sizing Chart

Sizing chart based on 20-26 deg C ambient air temperatures 62% relative humidity, no water table, average pool depth 1.5m / 5ft, minimum running time 10 hrs per day. Insulated pool cover applied 20 hrs per day, sheltered location.

Sizing chart is an approximate guide only.

Minimum Size = Fairweather Swimming, Optimum Size = 28+ degC

Pool Length ft Pool Width ft Approx. Gallons Pool Length M Pool Width M Approx. Litres Minimum size Heater Kw Optimum Size Heater Kw
24 12 8550 7.32 3.66 38868 12 16
26 13 10034 7.9 3.96 45616 15 19/24
28 14 11638 8.53 4.27 52904 16 19/24/25
30 15 13359 9.14 4.57 60732 16 19/24/25/31
32 16 15200 9.75 4.88 69099 24/25 31
36 18 19238 10.97 5.49 87454 24/25 31
40 20 23750 12.19 6.10 107968 24/25 31


Paramount Pools have proudly been supplying Waterco Products for over 11 years.

Waterco Head office

Waterco’s R&D division has led to the development of innovative products, meeting the challenges of change in the market place. The key to Waterco’s worldwide success has been its pioneering, innovative, rigorous testing and manufacturing processes that have resulted in quality-assured goods being delivered every time. It is for this reason alone that Paramount Pool Products are proud to be associated with such a company and are pleased to offer exclusively their range of Heat Plus heat pumps, Exotuf filters, Hydrostorm Plus pumps and Microfine Media!