You might see an EER (Energy Efficiency Ratio) number for your portable air conditioner, which measures the cooling ...

A window air conditioner is a practical and cost-effective way to control your indoor climate. These compact units are reliable and effective, all while using less energy than models built just 10 ...

Especially compared to a central AC unit, window units don’t use very much electricity. A window AC requires on average 500 to 1,440 watts to run, while a central unit uses upwards of 3,500 watts.

Summer is here, and the weather is sweltering, sticky, and gross. But, with these expert tips for using your window AC unit, you don't have to be.