
Turning on the heater in an electric vehicle does consume electricity. The heat source for the heater in electric vehicles is typically a PTC (Positive Temperature Coefficient) element in the form of electric heating. The PTC uses a thermistor as the heat source. When electricity is applied, the resistor generates heat, and the blower circulates air over this element to achieve the effect of heating the air. Methods to reduce air conditioning energy consumption: Improve the heat exchange efficiency of the condenser by optimizing the air intake area and cabin backpressure to enhance the airflow field, and use sealing structures to prevent hot air recirculation. Optimize the selection of air conditioning system components and their control strategies. Refine the control strategy of the automatic air conditioning system. In winter, electric vehicles rely on air conditioning and seat heating for warmth, but the principle of the heater differs from that of traditional fuel-powered vehicles. In traditional vehicles, the high temperature of the engine heats the surrounding air, which is then directed into the cabin to provide warm air. However, electric vehicles lack an engine, so their heaters depend on PTC or heat pump systems for heating. These systems are relatively power-intensive and do not heat up quickly. For electric vehicles, seat heating remains the most practical configuration in winter.

Using the heater in an electric vehicle will inevitably consume electricity, as EVs cannot utilize waste heat from an engine like gasoline cars do, relying solely on electric heating devices for warmth. Having driven several mainstream electric models, I can confirm their heating systems typically employ PTC electric heating or heat pump technology, which directly draws power from the battery with a consumption rate between 1 to 3 kilowatts. Data shows that range can drop by over 20% when using the heater in sub-zero temperatures, particularly noticeable in rapid heating mode. I recommend pre-warming the cabin via smartphone app and maintaining optimal battery temperature to minimize sudden high-power heating upon startup. Combining seat heaters and other low-energy functions can enhance comfort while conserving energy. Overall, cabin heating is one of the major power drains in EVs, requiring optimization in design and careful trip planning with charging stops by users.

As a seasoned electric vehicle driver, I've noticed that turning on the heater drastically drains the battery, especially in winter. Living in Northeast China where temperatures often drop below zero, the first thing I do when getting in the car is turn on the heater for warmth. However, I discovered that my EV with a 400-kilometer range would lose 40-50 kilometers after just half an hour of heater use, which was heartbreaking. Later, I learned some tricks: preheating the car for ten minutes before leaving in the morning, setting the temperature no higher than 20 degrees Celsius, and using the steering wheel heater more to save power. Once during a winter highway drive, I forgot to turn off the heater and halfway through, I panicked about running out of battery, urgently searching for a charging station to avoid being stranded. Since then, I've developed a habit of checking the weather forecast and charging station locations before every long trip, using the heater only when necessary, and otherwise dressing warmly or reducing the fan speed. Although electric vehicles are quiet and eco-friendly, the battery drain from the heater is something you really have to adapt to—safety always comes first.

Using the heater does increase the cost of using the car. I've done the math: running the heater consumes about 1 kWh per hour. At a home charging rate of 0.5 yuan per kWh, it only costs 50 cents per hour, which isn't expensive, but the costs add up over time. During long winter drives, the heater reduces the range, leading to more frequent charging, which increases both time and expenses. Compared to gasoline cars, which hardly use any fuel for heating, electric vehicles have to bear this electricity cost. However, newer models now come with heat pump technology, which is more efficient and consumes less electricity, representing an improvement. For daily use, it's advisable to set a reasonable temperature—not too high—and use the battery preheating function to save a lot of hassle.


