Does Using the Heater in the Car Consume More Fuel?

1 Answers
Millie
07/29/25 8:18pm
Using the car heater in winter does not consume more fuel. The car's air conditioning system has two separate systems for cold and warm air. The warm air is generated by utilizing the car's own heat cycle and does not require the compressor to work, so it does not consume fuel. The A/C button controls the air conditioning; pressing it means the compressor starts working, which increases fuel consumption. The correct way to use the heater is: 1. Wait 3-5 minutes: After starting the car, wait 3-5 minutes for the water temperature to rise before turning on the heater. 2. Set to recirculation mode: Set the air conditioning to recirculation mode to quickly warm up the interior. Once the car feels warm, switch to external circulation to help with air circulation. The ideal temperature for the heater is 23 degrees Celsius. 3. Adjust the air vents: Also, adjust the direction of the air vents to avoid blowing directly at your face, as this can cause fatigue and affect driving safety. Instead, direct the airflow toward your legs and feet.
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