Q-I have been talking with contractors about a new air conditioner for my home. How can I calculate which unit will be most economical for me? A-Take a look at the rating of the air conditioners that ...

The average air conditioner cost ranges from about $2,500 to $7,500, depending on the size of the system, the type of air conditioner, the efficiency rating, and several other cost factors. Use this ...

What was once considered a luxury, the air conditioner is now a standard feature in many homes, especially those in warm climates. A/C systems provide a welcome relief from the summer heat. However, ...

Improving the energy efficiency of air conditioners could save up to 100 billion tonnes of CO2 by 2050, according to new research from the Institute for Governance and Sustainable Development (IGSD).

Test by arriving home from your cool office with a cheery, "Have a nice day." Cool your entire home with Trane central air conditioning. Today 83 percent of all American homes have some form of air ...

Air-conditioner manufacturers and energy efficiency advocates have reached an agreement on consensus federal equipment efficiency standards for air-conditioners and ...

Former Western Cooling Efficiency Center director Dick Bourne, right, and Thomas Stiles, left, from lab testing company Intertek, examine Trane's DC Voyager cooling unit. A University of California, ...

There isn't a clear superior option between window units and portable options. Choosing between the two largely depends on ...