Key Points Portable ACs can work with casement windows but need a special adapter to seal the vent properly.Casement windows' ...

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 ...

July 11, 2010 Add as a preferred source on Google Add as a preferred source on Google Most in-window air conditioners are meant to fit inside vertically-sliding windows only, meaning those with larger ...

A room air conditioner can make a sweltering space comfortable again, especially in older homes, apartments, and additions where central air falls short. The bigger challenge is choosing between a ...

The best window AC units of 2026 are both powerful and energy-efficient. Our top five picks include quiet models from LG, ...

When you shop through retailer links on our site, we may earn affiliate commissions. 100% of the fees we collect are used to support our nonprofit mission. Learn more. Apartment living has its ...

As is the case for many people, my home cannot be retrofitted with central air. My 100-plus-year-old Brooklyn apartment, which features prominently in my seven years of air quality reporting for WIRED ...

We've been independently researching and testing products for over 120 years. If you buy through our links, we may earn a commission. Learn more about our review process. Our experts in the Good ...