Portable air conditioners have a lot going for them. They're renter-friendly, easy to install and perfect for cooling stubborn hot spots. They also shine in spaces where narrow windows can't fit a traditional unit. I've had mine for a year, and it's easily one of the best upgrades for my sweltering home office — keeping me cool, comfortable and productive no matter how high the temperature climbs.
As with window units and other air conditioners, you'll need to find the sweet spot between a comfortable temperature and energy efficiency, so your electricity bills won't skyrocket. Plus, regular cleaning can extend the machine's lifespan.
For this article, I'm focusing on a few things that might come up when buying, transporting and setting up a portable air conditioner.
Buying a new portable AC unit
1. Make sure it fits
Before buying a portable air conditioner, remember to check that the included window kit works for your window -- vertical or horizontal -- and fits in your window. This shouldn't be an issue for most brands but it's worth double-checking.
While some dual-hose models use separate hoses, my Midea Duo puts the exhaust hose inside the intake for extra insulation. John Carlsen/CNET
2. Get a dual-hose model if you can
Portable AC units must circulate outside air over their condenser coils to remove heat from inside your home. In an ideal situation, an intake hose pulls cooler outdoor air in while a separate exhaust hose expels the heated air back outside. Unfortunately, many cheaper portable air conditioners combine the intake and exhaust into a single hose, which reduces the cooling power compared to pricier dual-hose models like the Midea Duo.
If you can afford it, I suggest getting a dual-hose model. However, if you go for a single-hose model or a dual-hose unit with separate hoses, consider getting a portable AC hose insulation sleeve to prevent the exhaust hose from heating your room on the way to the window. By keeping the hot air in the hose, your AC shouldn't have to work as hard.
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