You don't need to disassemble the workbench to replace the heater tank.
When the engine is working, the coolant heated to high temperature by the combustion of the engine cylinder enters the heat exchanger through the water inlet pipe under the action of the water pump of the engine cooling system, and the heat emitted by the coolant is sent to the carriage or windshield by the air blown by the blower, so that the temperature in the carriage is raised.
Extended data:
Precautions for the use of car heater: Do not turn on the heater when getting on the bus. The car warm air blows the residual heat of the engine into the car through the blower. When the engine was just started, the engine did not generate enough temperature. In this case, it is not only impossible to turn on the warm air, but also increases the discharge capacity of the battery.
Don't turn on the warm air when idling. When the car is idling, the fuel of the engine is not fully burned. It may not only increase the carbon deposition of automobile engines, but also produce too much carbon monoxide. This can easily lead to carbon monoxide mixed in warm air entering the car.
(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)