A household heating heat exchanger is characterized in that a radiating pipe is arranged in the middle of a water storage tank, the upper part of the radiating pipe is connected with a heating pipe interface, and the lower part of the radiating pipe is connected with a heating return pipe interface; The upper part of the water storage tank is provided with a water outlet pipe which is connected with a hot water outlet; The lower part of the water storage tank 1 is provided with a water inlet pipe which is connected with the cold water inlet.

This circulation mode is gravity pressure circulation. If it is reversed, it will affect this cycle.

Also, hot water is lighter than cold water. If you pour hot water on it, the temperature will be very high. If water falls off, it will affect the temperature.

There is also the problem of water tank scale, which will increase after inversion. Because there is no temperature difference in cold water, scale is easy to accumulate, which will affect the circulation quality and water temperature after a long time.