Unlike a standard window air conditioner, they can also heat a room as well as cool it.

As Americans gear up for another week of potentially hazardous heat, ABC News spoke with experts about how to buy the right AC unit. Michael Brandemuehl, emeritus professor of civil, environmental, ...

Record-breaking heat is sweeping across the United States scorching 118 million Americans from coast to coast this week, ...

Pushing the temperature too low could create mold problems even with dehumidification.