As the summer heat settles in, air conditioners are working overtime. Before you crank the thermostat down or invest in a new ...

Consumer Reports gave this portable AC the highest score among both large and compact units, along with perfect scores in cooling performance and efficiency.

GREENSBORO, N.C. — If you have an A/C unit that is too small for the space, you'll never feel cool in the room. If you have an A/C unit that is too large, it will cycle on and off too quickly, and it ...