I tested seven highly rated portable air conditioners on the market, and only one kept me from melting into a puddle.

Recent cooler weather is now making way for summer-like temperatures, which means you'll probably be kicking your air conditioner into high gear very soon, if you haven't already. The National Energy ...

A few air conditioners still retain the older (but still valid) EER efficiency number, and the same rule applies—a high EER is better than a low one. We mention units that have an inverter ...

The best smart air conditioners fit in your window and can be controlled ... Energy Efficiency Ratio: 14.7. ... You also want to look for units with a high energy-to-efficiency ratio (EER) ...

When breaking down your home budget, you may wonder how much it costs to run AC based on hourly use, type of unit and more. We’ll break it all down.

Smart air conditioning solutions for staying cool and cutting energy costs. ... Look for units with a high SEER2 (Seasonal Energy Efficiency Ratio) rating and the ENERGY STAR label.