How to use car heater radiator?The heat source of the warm air radiator is to use the waste heat of the engine cooling water and send it to the radiator of the air heater through the water pipe. As long as the engine does not stall, the cooling water and the radiator maintain a "small circulation". It is connected in parallel with the engine radiator. Since the radiator of the heater does not have a thermostat, it can keep the heat source uninterrupted. The driving device of the heater is powered by a DC motor, and the hot air is sent into the car through the blower. At the same time, the hot air can remove the frost on the windshield of the cab. If you turn on the warm air when the car is cold, you will not get warm air and will extend the warm-up time. Therefore, generally do not turn on the warm air switch before the water temperature rises. You should turn the red and blue switches to adjust the temperature to the blue side. Turn off the warm water switch. After the water temperature is normal, turn the red and blue switches to adjust the temperature to the red side and turn on the blower. In order to keep the engine water temperature normal, once the water temperature exceeds the standard, the electronic fan will start to help the water tank dissipate heat. After the water temperature is normal, the electronic fan stops working. Repeat this repeatedly to keep the water temperature normal. If the heater switch is turned on, the coolant will flow into the warm air water. The heating tank can help the coolant to dissipate heat and reduce the frequency of the electronic fan switch, which is beneficial to the vehicle, and there is no saying that it consumes fuel. There is another trick: turning on the heater switch when the water temperature is high during driving can also help the engine to dissipate heat.