Q. We have central air-conditioning. It seems wasteful to cool the entire house when just we two are home. Is using a portable air conditioner in various rooms more efficient overall? A. Natural ...

Q: I like fresh air, but my kids have allergies, so I close the windows and air-condition sometimes. I thought about getting a portable air conditioner to use in various rooms. Are they efficient? A: ...

Checked for accuracy by our qualified verifiers and subject experts. Find out more about fact-checking at CHOICE. Sick of sweating through those long work-from-home afternoons, but don't have built-in ...

Dear Jim: I like fresh air, but my kids have allergies, so I close the windows and air-condition sometimes. I thought about getting a portable air conditioner to use in various rooms. Are they ...

Dear Jim: I like to use natural ventilation, but sometimes I need to air-condition. Since it is just my husband and I here now, we need to cool only a room or two. Would a portable air conditioner ...

Temperatures are steadily rising as we head into summer. If you're sweating it out at home, a portable air conditioner could be just what you need. These plug-in units are designed to cool rooms with ...

Q: I am trying to run my central air conditioner less to save electricity. Would using a portable air conditioner use less electricity? Does one have to be vented outdoors through a window? A: Anytime ...

If you’re interested in saving money on your home heating bill, you might consider what’s known as a mini or a micro heat pump. These portable units work like air conditioners, and are often marketed ...

The Zero Breeze Mark 3 I saw at CES 2025 is basically a 22-pound heat pump that can run off of a battery. Jon covers artificial intelligence. He previously led CNET's home energy and utilities ...

If you want fresh, breezy air without the stress of window installation, a portable air conditioner can be a great solution. Think of them as AC units on wheels, able to cool a single room without ...