Does the car air conditioner heater consume a lot of fuel? What is the principle of the car heater?

Some people say that when the car heater is turned on, the fuel consumption of the engine increases or even doubles. In fact, whether the car is turned on with cooling or heating, it will consume fuel, but the fuel consumption is very small, especially the fuel consumption of the car heater can be ignored. The fuel consumption may be different for each person. Does our car heater transfer heat through the engine? Let's take a closer look!

Does the car air conditioner heater consume a lot of fuel?

What is certain is that whether you turn on the heater or the cooler, the fuel consumption of the car will definitely increase accordingly. Some people may ask how the fuel consumption can increase when the heater is turned on? Although you don’t need to turn on the air conditioner compressor when you turn on the heater, you also need to turn on the motor fan, right? And we all know that all the energy sources in the car come from the engine, so whether you turn on the motor fan or the compressor air conditioner, it will consume extra power from the engine, and the corresponding fuel consumption will also increase; of course, if calculated by fuel consumption, the fuel consumption of turning on the air conditioner compressor is definitely greater than the fuel consumption of turning on the heater. But even so, even if you turn on the compressor cooling air conditioner, the fuel consumption cannot be doubled, not to mention that the fuel consumption of turning on the heater will be doubled.

What is the principle of car heater

So our production actually comes from the heat generated by the combustion of the engine, and the heat generated by the combustion of the engine will be dissipated through our cooling system. The temperature in the cooling system can reach about 100°C, and the warm air of our car air conditioner is transmitted by the refrigerant in our cooling system. So the heat source of our car warm air comes from the heat of the combustion of the engine, and the heat transfer depends on the coolant in our cooling system.

What should you pay attention to when driving a car with a heater in winter

Therefore, when using the heater, we need to wait until the engine reaches the normal temperature before starting normal use. Otherwise, if we start using the heater at high load while the car engine is warming up, it will prolong the engine warm-up time and increase the oil consumption of our car engine. The editor would like to remind all car owners that before using the heater, they must clean the air conditioner filter in advance, because if it is not used for a long time, there will be a lot of dust inside the air conditioner. Once the heater is used, the dust will enter the car with the air and affect the respiratory system of the people in the car.