There's a lot to like about portable air conditioners. They're easy for renters to install, a solid supplemental cooling choice in homes with hotspots and a great option for homes with windows too narrow to support window air conditioners. I've had my portable air conditioner for a year and the cool air is one of the best investments for keeping my normally sweltering home office comfortable. Now I can stay productive during hot weather.
As with 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. But 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.
Even a small portable air conditioner unit can be very heavy -- mine's on the larger end -- so you may need a second person to help you lift it. John Carlsen/CNET
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