1. At present, the main form of warm air in automobiles is water heating. Its heat source comes from engine coolant. When the temperature of coolant is high, it flows through the heat exchanger in the heating system, and the blower exchanges heat between air and engine coolant. Finally, the heated air is sent into the car through various air outlets. Simply put, the heat of the engine coolant is not wasted, and the automobile heater transfers heat through the engine coolant, so it will not increase fuel consumption!

How can a car turn on warm air without air conditioning?

① Don't turn on the air conditioner after the car starts, and then turn on the warm air after the pointer of the engine water thermometer reaches the middle position.

② A/C is the abbreviation of air conditioner, which is the switch of air conditioner and refrigeration. There is no need to turn on the air conditioner when the warm air is turned on.

③ The warm air temperature should be controlled at 18℃~25℃. First of all, this is the most comfortable temperature for human body.

(4) Adjust the circulation mode of the air conditioner to in-vehicle circulation. If you think the air inside the car is a little cloudy,

⑤ Using the air conditioner for a long time will increase the burden on the condenser and cause losses to the refrigeration system. So, you can turn off the air conditioner in time, let it "have a rest" and turn it on later.

⑥ Turn off the air conditioner three to five minutes before turning off the engine, which can not only reduce the fuel consumption, but also avoid the air conditioner from generating odor. If the engine is turned off without turning off the air conditioner, on the one hand, mold will breed in the air conditioner, and on the other hand, when it is started again, the vehicle will ignite with the pressure of starting the air conditioner, causing damage to the engine.