"Air conditioners have become a necessity in recent times but the problem associated with air conditioners is high electricity bill. But there is not much reason to worry, as there are different ways, implementing which you can increase the efficiency of the air conditioner which in turn can keep the electricity bills under control.First of all, the outdoor unit of the air conditioner should be kept away from all kinds of debris so that the airflow is not restricted. When the airflow is not restricted, the AC will not have to work harder thus keeping the electricity bills under control.Secondly, cleaning the air filters once a month is mandatory because nothing like dirty filters decreases the efficiency of the air conditioner.Attic ventilation is another way to increase the efficiency of air conditioners. When attic ventilation is improved it reduces the attic temperature which in turn can increase the efficiency of the air conditioners.The ventilation fins should be open so that airflow can take place without much restriction. Another significant way to increase the efficiency of air conditioners is proper setting of the thermostat. It is recommended that the thermostat be set at 78 degrees Fahrenheit when at home and at 80 degrees of Fahrenheit when away from home.Last but not the least, it is important to upgrade the air conditioner when it becomes too old and invest in a new energy efficient air conditioner with a higher SEER rating."