We've rounded up the best Prime Day air conditioner deals on our favorite portable and window units. Shop these models now ...

Built to provide comfort and efficiency while enduring the harsh elements of a seacoast environment are the Evolution® Series two-stage air conditioner and heat pump with CoastGuard™ protection. The ...

An AC unit that’s too small will be underpowered and it will never keep up on those hot days. If you go too large, it might cycle too quickly and not dry out the air, leaving your space a little ...

Shopping for a window air conditioner? Consumer Reports has tested hundreds of them. Read about types, features, and other must-know topics in our Air Conditioner Buying Guide.

An easy-to-read guide for choosing the best window air conditioner, central HVAC unit, mini-split, or portable model for a range of individual needs and spaces.

Window-mounted AC units come in various sizes and cooling capacities, ranging from about 5,000 to 25,000 BTU (British thermal units). As a general rule, you need about 20 BTU of cooling for every ...