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We may receive a commission on purchases made from links. A window air conditioner can be a lifesaver in a heatwave, but how do you install one in a horizontal sliding window? Most window air ...

The first time I installed an air conditioning unit—heaving and wedging it with no small effort onto the sill of a fourth-floor bedroom window—I was shocked that more units don’t fall out and plummet ...

With temperatures reaching the high 90s last week, it’s been a fast start to air conditioner season. For those without central air conditioning, window AC units are probably the next best thing. While ...