Mitsubishi ECLIPSE Owner's Manual page 307

Comfort controls
Temperature control dial
Turn the temperature control dial clockwise to make the air
warmer. Turn it counterclockwise to make the air cooler.
Type 1
5
5-16
Type 2
N00737000164
NOTE
While the engine coolant temperature is low, the tempera-
ture of the air from the heater will be cool/cold until the
engine warms up, even if you have selected warm air with
the dial.