Energy.gov

Ductless mini-split air conditioners are a good choice if you want a zoned air conditioning system but have no ducts in your house.

In warm climates with low humidity, evaporative coolers can be a cost-effective cooling strategy.

Air conditioners work much like a refrigerator, transferring heat from the interior of your home to the outside.

Regular maintenance extends the life of your air conditioner and helps it run as efficiently as possible.

Room air conditioners can be a cost-effective strategy for cooling one room or part of a house.

Choosing the most effective cooling options for your climate saves money and improves comfort.

Although effective in some circumstances, radiant cooling is uncommon in the United States.

Central air conditioners are more efficient than room air conditioners as well as easy and convenient to operate.

Natural ventilation is most effective in climates with cool nights and regular breezes.

In many parts of the country, well-placed fans are sufficient to maintain comfort during the cooling season.

A whole-house fan, in combination with other cooling systems, can meet all or most of your home cooling needs year round.

When your air conditioner is not operating properly, there are a few things you can check before calling a service professional.