If you leave the windows on the summer mode, the cold air masses can freely penetrate into the room, which will naturally affect both the heat level and the energy consumption for its conservation.
Uma ushiya amafasitela imodi ehlobo, amakhaza emoyeni Izinkumbi zizobe ezikwazi ukuhlaba zingene ngokukhululekile ekamelweni, ngokwemvelo sizothinta ezingeni ukushisa namandla ukusetshenziswa ukuba ngisindise izwe.