Should the Car's Heating Use Internal or External Air Circulation in Winter?
1 Answers
In winter, cars should alternate between internal and external air circulation. The correct usage techniques are introduced as follows: 1. Do not turn on the heating immediately after starting the vehicle: It is not recommended to turn on the heating right after starting the car, as this can hinder the heating temperature from rising quickly. If you turn on the air conditioning immediately after starting the vehicle, cold air will blow out because the engine has just started, and the water temperature in the radiator is not yet high enough. You need to let the engine warm up for a while to allow the water temperature to rise. 2. Do not set the heating to the lowest position: This is an incorrect operation. Dust can easily accumulate in the fine gaps of the air conditioning system and is difficult to clean. You should regularly increase the fan speed or set it to a medium position. This not only saves fuel but also prevents dust from clogging the system. Some car owners believe that using the internal circulation mode will save a lot of fuel, but this operation can make the air inside the car stuffy and reduce oxygen levels. It is recommended to also use the external circulation mode when turning on the heating to allow air exchange between the inside and outside of the car.
