When the next UK heatwave hits, a portable air conditioner can feel like an absolute lifesaver, especially if your home tends to trap heat upstairs, when you're trying to sleep or work. However, the ...

Sure, a quiet air conditioner is nice during the day, but it’s essential at night when you’re trying to sleep. That’s why, in addition to testing how well air conditioners cool a room, we also rate ...

Dear Jim: My central air conditioner is 16 years old, noisy, and probably inefficient. I want to replace it with a quiet, efficient model. What are the best ones available for 2011 and which provide ...