Heating and air conditioning work differently. Automobile air conditioning achieves the refrigeration effect by pressurizing the compressor to liquefy the refrigerant, and then vaporizing and absorbing a lot of heat in the air, and the compressor will increase the engine load, so it will consume a certain amount of engine oil. However, heating is a process in which the cooling system of the engine radiates heat to the engine, and the heat is introduced into the car through a small fan. Even if the hot air port is closed, the heat will be dissipated to the outside of the car, so car heating belongs to waste utilization and will not increase fuel consumption.
There is no need to turn on the air conditioner for heating, so it is not advisable to turn on the heating when driving.
We don't need to turn on the AC switch when we turn on the heating in the car, because this will start the compressor, that is, turn on the air conditioner. In addition, it is not appropriate to turn on the heating when the car starts, because the car engine has just started in winter and the temperature of the water tank is still very low. Turning on the air conditioner will not only make the temperature inside the car rise rapidly, but will increase the burden on the engine and delay the normal temperature rise of the engine. The correct way is to wait for the water temperature pointer to reach the middle position before turning on the warm air. First, use the external circulation to discharge the cold air in the car, and then transfer it to the internal circulation after 2-3 minutes.
You must know the safety precautions for heating.
1. Don't blow the heating directly on your face, because it will cause the driver's drowsiness for a long time and affect the driving safety. And blowing directly on the face will also lead to drier skin.
2. Although the internal and external circulation can be adjusted, it is suggested that when heating is used for a long time, the window should be opened with a small gap to let the air circulate, which can ensure the oxygen content of the air in the car and make the driver clear-headed.
3. It rains in winter, the humidity outside the car is high, there is a temperature difference between inside and outside, and the windshield is prone to fog. At this time, there is no need to turn on the air conditioner, just adjust the way the warm air blows to the windshield, and the fog can be removed in 1-2 minutes.
It is quite dangerous to turn on the heating and close the window when waiting for someone to stop or rest, because it is easy to cause carbon monoxide poisoning, especially when people sleep in the car. Therefore, it is best to turn off the vehicle when parking for a long time, and open the window to keep the air circulating in the car even if you want to blow the heating all the time. Finally, it is recommended not to sleep in the car.