This isn't an all-weather, cold-climate heat pump -- it can operate in temperatures ranging from 50 to 104 degrees Fahrenheit ...

They are often allowed in rentals where window units are not, are easier to store and install, and some roll effortlessly ...

Our experts say these portable AC units from brands like DeLonghi and Honeywell are worth buying. They're movable and keep ...

so he decided to hack a few experimental air conditioners. He’s not starting completely from scratch. The two attempts he made at building his AC came from donor parts. The successful one ...

I was not happy from day one with the 4000 BTU room air conditioner. Knobs were so hard to turn I had to use pliers. The filter was impossible to put back in after cleaning it. I broke one and was ...

Portable air conditioners account for almost 20 percent of the room air conditioner market, but our lab tests reveal that they deliver only mediocre performance. In fact, not a single model earns ...

The air conditioner is relatively light at 60 pounds and has handles, helpful for moving it from floor to floor. However, I ran into issues moving it from one room to another on the same level.