Which button is for the heater in a car?

[LaChloe]

Different cars have the heater button in different locations. Taking Volkswagen as an example, the heater button in Volkswagen cars is the temperature adjustment knob, which is a round knob. Rotate the knob to the high-temperature indicator area to deliver warm air. When turning on the heater, make sure to turn off the A/C switch. Correct usage of the car heater: 1. When driving in the morning during winter, do not turn on the heater immediately after starting the engine, as the engine is still cold and cannot produce warm air. Instead, warm up the car first and wait until the engine or coolant temperature rises before turning on the heater. 2. Another important point is not to press the A/C button when using the heater in winter, as this controls the car's air conditioning compressor. The heater utilizes residual heat from the engine cooling system and does not require the compressor to produce warm air. Pressing the A/C button while using the heater will only increase fuel consumption. 3. Additionally, prolonged use of the heater can cause fogging on the windshield. The correct approach is to direct the warm air from the heater toward the windshield. In winter, prolonged use of the heater can also cause dizziness among passengers due to poor air circulation. Therefore, slightly open the windows to allow fresh air to circulate.