You would like to efficiently heat your pool.
Depending on the outside temperature and the use (or not) of your heat pump, the heating time / operation time of the heat pump is very variable.
In order to properly heat its pool at the beginning of the season, or after a long period of non-use your heat pump, it is necessary that the pimp operates 24H/24H for a few days depending on its power and the size of the pool to be heated.
The operation during the night will indeed allow your heat pump to avoid losing the degrees gained during the day. If you have a pool cover, we strongly advise you to use this cover to increase the performance of the heat pump.
Once the desired temperature has been reached, you will be able to reduce the operating time of the heat pump to maintain the temperature.