What's the position of Rena's warm water tank?

There is a foreign body. According to the information released by official website of Pacific Auto Network, the hissing sound of the warm water tank is caused by foreign objects in the blower. Automobile air heater is an important heating component in automobile air conditioning. The water used to cool the engine rises in temperature after flowing through the engine, and then flows into the heater box. The fan blows air to the warm air tank, which can dissipate heat.