Portable Air Conditioner BTU Ratings Are Confusing. Here's What to Know

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Yes, BTU ratings matter, but when it comes to portable AC units, there's more to unpack.

3 min read

When shopping for an air conditioner, BTU ratings are one of the first specs people consider when deciding which unit to buy. But if you're looking at a portable air conditioner, those numbers can get quite confusing. Unlike window units, portable models often have two BTU ratings, a higher rating from the American Society of Heating, Refrigerating and Air-Conditioning Engineers and a lower one from the Department of Energy.

What do they both mean, and why do they matter? Here's everything to know before you purchase a portable air conditioner for your...

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