Though transom windows fell out of fashion in the 1970s and 1980s, homeowners now are rediscovering how they can add a distinctive touch to a space—not to mention a little more natural light.

For those with wider windows, opt for a model like the Vornado Transom that can fit frames up to 40 inches wide. Fan Speeds At minimum, most window fans have two speeds: one low and one high.

Plan ahead and save $300 on the Ktaxon 12,000 BTU Window Air Conditioner at Walmart. ... for starters, and it fits openings from 26 to 36 inches wide and 16 inches in height.

Ktaxon 12000BTU Window Air Conditioner, $329 (was $629) at Walmart. Get it. Of course, you'll want to be certain it's made to fit your window before you buy, so there are a few key points to note.