Why has the air conditioner been on for half an hour and the indoor temperature has not reached the ideal effect?

Due to the floating of hot gas, the running time required to reach the set temperature during heating is longer than that during refrigeration. In addition, the heating effect is related to many factors, such as the size of the room area, the heat insulation performance of the room, the sealing performance of the door and window of the room, and the outdoor environmental temperature, etc. the change of these factors will also have a corresponding impact on the heating effect.