They look like cold-air boxes, but window ACs hide a secret that explains why they need a window. Here's why you can't just set them on the floor.

We may earn a commission from links on this page. Summer is here, and once more, higher-than-average temperatures are expected pretty much everywhere, which is fun. That means a lot of people are ...

A step-by-step guide to securing a window air conditioner and filling in the space around it. Q: I am renting a small, old home without central air conditioning. I have a window air conditioner, and ...