The air conditioner's energy efficiency rating indicates how much electricity it uses and, in turn, the environmental harm. If you want to spend less and still enjoy great features, buy an AC with the ...

Q: I am renting a small, old home without central air conditioning. I have a window air conditioner, and the past few years I’ve awkwardly filled in the space around it with a large piece of plywood.

When it’s hot enough to need an air conditioner, installing one can be a chore, tempting you to cut corners. Please don’t. A poorly installed AC is at best noisy ...

Installing an Energy Star-rated window air conditioner is an economical way to beat the summer heat. Step 1: Measure the room that you want to install the air conditioner in and choose a window with ...