Read our heat pump buying guide for more. To provide cooling throughout the home, an air conditioner transfers heat from a home’s interior to the outdoors. You can reference the diagram ...

If your current air conditioner is more than eight years old, it's time for a new one. Over the life of the product, the amount you'll save in energy bills will more than likely exceed the cost of ...

Window AC: Easy to install, fits in a window or wall opening. Split AC: Requires professional installation, consists of indoor and outdoor units. Window AC: Generally ...

For more cool content, check out our window AC buying guide. We've also got tips on how to fix a noisy air conditioner and how to tell if it's time to replace your AC. Read more: Lower Your ...