PURPOSE: To make an upper/lower difference of an indoor temperature less, at a heating operation time of an air conditioner.

CONSTITUTION: In an air conditioner executing a suction of the air in an indoor from an air suction opening 2 by a blower 5 and discharging it again into the indoor from an air blowing opening 3 after heat exchanging by a heat exchanger 4, an angle of a hot wind blowing out from the air blowing opening 3, is changed and is directed to a floor direction of an under section of the air conditioner and an agitation operation is executed, by changing a flap 7 forcedly to a downward direction at a vicinity of a room temperature preliminarily set.