"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Summer can either be something to endure or something to enjoy, depending on your perspective. But either ...

Compact heat pumps that slot into windows could be a planet-friendly way to efficiently heat and cool apartment buildings without breaking the bank, experts say. While many single-family residences ...

If you don't have central air and are in the market for an air conditioner, you've probably been debating which style would work best for your home or apartment. While both portable and window air ...

As climate change brings hotter summers, AC manufacturers are positioning sleek window units as lifestyle accessories. Some of them are less effective than they are stylish. By Callie Holtermann Last ...

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 ...