Both Home Depot and Lowe's offer room air conditioners. The stores offer different models of room air conditioners, from portable units to those that are meant to be installed in a window. More » Home & Garden Heating & Cooling

Use the area of a room to determine the proper air conditioner size estimate, which is measured in British thermal units per hour. A 100- to 150-square-foot room needs a 5,000 BTU per hour unit, while a 400- to 450-squar... More »

To repair a room air conditioner, diagnose the problem and likely cause, whether it's not running or just not cooling. If the air conditioner is not running, replace the electrical switch. If it isn't cooling, replace th... More » Home & Garden Heating & Cooling

Consumer Reports ranks the GE AEM05LS, the LG LW8014ER and the LG LW1214ER among the top room air conditioners on the market as of 2015; testing included measurements of air conditioner noise. Although Consumer Reports a... More » Home & Garden Heating & Cooling

As of 2015, Robinair produces air conditioner servicing equipment rather than air conditioners. The company has two product divisions: one for automotive air conditioners and the other for residential and business heatin... More » Home & Garden Heating & Cooling

As of 2015, 12 Energy Star-compliant air conditioners are available on the Danby website, ranging from the small DAC060EB2GDB window air conditioner to the larger DAC250EB1. Although Danby carries portable air conditione... More » Home & Garden Heating & Cooling

Commercial air conditioners and central air conditioning units should only be moved by a licensed air conditioner repair firm that can safely disconnect coolant lines. Air conditioners contain coolant that can be harmful... More » Home & Garden Heating & Cooling