Did you know that you can improve the efficiency of your central AC by simply adding an attic ventilation fan? On a typical summer day, your attic can easily reach temperatures of up to 160 degrees! It can be very difficult for your AC unit to compensate for that extreme heat on top of your home. Attic ventilation fans are an easy and efficient way to remedy this problem. They start at about $50 for a standard electric gable fan and can cost upwards of $350 for a high end solar attic fan.
Finding the Right Thermostat Setting: A good place to start is to set your fan’s thermostat to 110 to 115 degrees. You should monitor how often and how long the fan runs and adjust the thermostat accordingly. Ideally, your attic will stay in the same temperature range, 105-115 degrees. Place a thermometer in the attic overnight to find out if it is maintaining the new temperature. Be sure to check the reading every few hours.