The most reliable online reviews on the best central air conditioners are available at TopTenReviews.com. This review website features the top 10 central air conditioning units as of 2015 and rates each model according to efficiency, comfort, design, help and support, and overall performance.
Other reviews of central air conditioners can be found at ConsumerReports.org, FurnaceCompare.com and ConsumerSerach.com. According to TopTenReviews.com, the best central AC unit of 2015 is the Dave Lennox Collection XC25. This model received the top grade in efficiency and design and was rated with an overall score of 9.75 out of 10. One standout feature of the Dave Lennox Collection XC25 is its SunSource solar-ready design.