Should the AC be turned on for car heating?
2 Answers
Car heating does not require turning on the AC. In fact, the heating system simply utilizes the internal heat circulation of the car, and there is no need to activate the compressor. Car air conditioning refers to the air conditioning device installed in the vehicle, which can cool, heat, ventilate, and purify the air inside the cabin, providing a comfortable environment for passengers, reducing driver fatigue, and improving driving safety. Car air conditioning generally includes cooling devices, heating devices, and ventilation devices. This combined system makes full use of the limited space inside the car, featuring a simple structure and easy operation, making it the internationally popular modern car air conditioning system.
I've been driving my own car for over a decade and never need to turn on the AC for heating. Once the engine warms up and the coolant temperature rises, the blower will simply push out warm air. Turning on the AC would only engage the compressor and waste fuel. Remember to wait 3-5 minutes after cold starts in winter until the temperature gauge rises before turning on the blower - you'll get abundant free heat. Using the AC cooling button is just wasting money and causes faster compressor wear. The only exception is when you need quick dehumidification to defog windows - occasionally using AC with heating then, but keep it off 99% of the time for peace of mind. Develop the habit of checking control buttons while driving to avoid misuse - those saved fuel costs can give you dozens more kilometers per tank.
