Central air conditioning can become one of your favorite creature comforts during the dog days of summer. In order to relax in a crisp, refreshing indoor environment, an air conditioning unit is a great investment that will serve you for years to come. So, in order to protect that investment and extend its overall lifespan, it will need some maintenance. A neglected system drops in efficiency steadily by at least five percent each year. Life Span Typically, you can expect […]