Yes, we can understand that the heat source of the heater water tank does not heat itself, but that the heat is transferred to the heater water tank by the heat of the heating liquid. cooling to obtain heating.
Understand the salary principle of air conditioning and heating. According to the type of heat source, automobile heating systems are mainly divided into two types: one uses engine coolant as the heat source (currently used by the vast majority of vehicles), and the other uses fuel as a heat source (used by a few mid-to-high-end cars). When the engine coolant temperature is high, the coolant circulates through the heat exchanger of the heating system (usually called the small water tank of the heater), and the heat exchanges between the air sent by the fan andengine coolant are heated by the engine coolant. fan It is sent into the car through each air outlet.
Excel models therefore use the second method for heating.