
Using a Heat Pump
A heat pump is a highly efficient solution that, thanks to its thermodynamic system, can deliver much more energy than it consumes.
Equipping the pool with a thermal cover can reduce the required heating capacity by half. Therefore, if a 12 kW heating capacity is required for a pool without a cover, 6 kW is sufficient for the same pool with a cover.
Using the heat pump when the outdoor air temperature is at its highest helps maximize performance while reducing electricity consumption. Heating the pool during hot, sunny days and covering it at night is the optimal solution.

Covering the pool at night (or when the outdoor air temperature is lower) with a thermal cover will slow down the decrease in pool water temperature.
There are two types of heat pump air discharge: horizontal and vertical. Vertical discharge is generally suitable for smaller spaces, as less clearance is required around the unit. With the same sound level, the perceived noise level will be lower for vertical-discharge heat pumps than for horizontal-discharge models, as the air is discharged upwards. Vertical discharge also prevents cold air from being blown towards the ground.
After delivery and installation, the unit must be left for at least 24 hours before being started. Before starting the circulation pump, all valves in the circulation system must be open. The heat pump must be installed using a bypass with valves to allow the flow rate to be adjusted and the pool to remain operational if the unit is removed. The direction of water flow must always be respected during installation.
The unit must be installed upstream of electrolysis or dosing equipment due to the aggressive nature of the chemicals used to maintain water quality. It is recommended to install a check valve to prevent water from flowing back through the system downstream of the unit when the circulation pump is switched off.
It is not recommended to maintain the pool water temperature above 30°C, as this can lead to deterioration of water quality, green water, and damage to the pool liner. In hot regions, during hot seasons, or when the pool is located under a shelter, the pool water temperature may commonly exceed 30°C. A heat pump with an automatic cooling mode can stabilize the pool water temperature at the desired level, set below 30°C.
Heating the pool to the desired temperature can take several days, depending on weather conditions, pool capacity, ambient temperature, the use of a cover, and the heat pump's capacity.
Heat pumps must be installed outdoors, with no obstacles near the air intake or discharge. The unit will shut down if the ambient temperature is outside its operating range, depending on the model, and it will not operate correctly if the water flow rate is insufficient. A drainage system must be provided for the water produced by condensation of moisture from the surrounding air.
After the circulation pump is switched on, the heat pump starts operating after a time delay. If ice accumulates, the unit will stop heating the water and initiate a defrost cycle, depending on the model.
Regardless of the heat pump model selected, all water must be drained from the unit when preparing it for winter conditions.
Our range includes AstralPool and Zodiac heat pumps:
ASTRALPOOL – PRO ELYO TOUCH, EVOLINE
ZODIAC – Z400iQ, Z350iQ, Z250iQ, Z200