Size matters when you’re buying a window air conditioner. An air conditioner that’s too small will struggle to keep a room at a comfortable temperature. A model that’s too big will cool a room too ...

When the mercury rises and the air stays hot and humid even after the sun goes down, you’ll need to find a way to stay cool. Many older homes don’t have whole-house air conditioning systems, which ...

Q: Is there anywhere you can direct me to find out what size air conditioner is appropriate for a 1,350-square-foot apartment? The building is about 5 years old and we live near the water so there is ...

The average air conditioner cost ranges from about $2,500 to $7,500, depending on the size of the system, the type of air conditioner, the efficiency rating, and several other cost factors. Use this ...

Like clothing, an air conditioner must be the proper fit for it to be of value. If you buy one that’s too small or too large, you won’t be happy — or comfortable. This article runs through the ...