Why do window ACs actually need a window? On the surface, it feels unnecessary — after all, the unit is clearly designed to blow cold air from the front. Why can't you just set it on the floor like a ...

No central AC? As the National Weather Service warns of dangerous heat across much of the US next week, we tested dozens of air conditioner units to see which delivers the best cooling performance.

Window air conditioners are bulky, but they're a breeze to install with this step-by-step guide.

If you live in a space without central air conditioning, investing in an AC unit can be key to keeping you cool throughout the warmer months. Your choice will typically come down to two unit types: a ...

WHICH WINDOW AIR CONDITIONER IS BEST? Central air conditioning isn’t an option for everyone. Sometimes, you need a good window AC unit to keep you cool. A window AC unit might not be as expensive as ...

Living in a historic Pittsburgh home without central air, window units are not optional for my family. Since our 1904 home has radiator heat and no ductwork, I have used many window-unit and ...