During what phase of flight is the carburetor heat typically used?

Carburetor heat is typically used during the takeoff phase of flight to prevent ice formation in the carburetor. During takeoff, the engine operates at a high power setting, which can lead to rapid cooling of the carburetor due to the vaporization of fuel. If the temperature drops significantly, it can lead to carburetor icing, which can affect engine performance and lead to a loss of power. By applying carburetor heat, warm air is introduced into the carburetor, raising the temperature and preventing ice formation. While carburetor heat can also be used in other phases such as cruise or during descent if icing conditions are present, its most critical application often arises during takeoff when the engine is under maximum load and potential icing conditions are most dangerous.