Although the ice will melt faster and disappear in a short time if hot water is poured, it is harmful to the car body, both the window glass and the paint surface of the car body are damaged to a certain extent.
Therefore, it is necessary to pour it with cold water to melt the ice. Although it is slow, it will not cause any harm to the car body.
In fact, if there is a way to solve it, it is better to vacate a garage. In winter, when it freezes, the temperature is already below zero. Parking the car outside at this temperature is still harmful to the car.
The paint surface of the car body will become no longer smooth because of frequent ice, and it will be more difficult to start the car, especially for old cars with a long time.
If you put your car in an indoor garage, you won't have these problems, and the problem of ice on your car will be solved every winter.