A central AC unit's cost depends on size, energy efficiency, and other factors, but typically ranges from $3,800 to $7,900. See why.

Summer is heating up, but is your AC blowing lukewarm air instead of cool? Here are some simple fixes that can restore that much-needed cold air.

Discover what size air conditioner you'll need, how many BTUs your home requires per sq ft and which factors impact the size of an air conditioner in our guide.

More than nine out of 10 homes (91%) have central air or a window air conditioning, according to the U.S. Census. Experts recommend getting your AC unit serviced or tuned up ahead of summer.

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 ...

To save money on a new air conditioner, consider replacing your system during the off-season (early spring and late fall), when air conditioning companies are typically less busy with service calls.

Replacing your furnace and air conditioner system at the same time can be a major investment. However, it can also be an opportunity to save money in the long run by increasing energy efficiency ...

Even if your furnace or air conditioner is keeping up with your needs, it might be on its last legs. Anticipating your HVAC system's demise lets you approach a pricey home project with enough time ...

If you need to move up to an entire 3 or 4 bedroom home setup, Gree's three-unit system for $2,303 will work well or you can upgrade to Pioneer's four-unit system, starting at $4,195. Gree also ...