During hot summer days, keep in mind the air conditioning
only cools at one degree per hour when it is roughly 78 degrees or more outside, and only maintains the temperature inside when the outside temperature is above 90 degrees. Make sure the temperature is set to a comfortable temperature early in the morning. If you set back the thermostat during the day and wait until later in the day to bring the temperature down, it may take until late in the night to bring the temperature down. The best and most efficient policy is to leave the temperature at a comfortable setting at all times.