In a heat pump system, the buffer tank is an indispensable component. When the heat pump starts or stops, it effectively cushions the flow changes within the system, protecting the heat pump equipment. During heating or cooling processes, it stores excess heat or cold energy and releases it promptly when demand increases, thereby improving the system's response speed and energy efficiency.

The domestic water tank(Unvented Cylinder) works in coordination with the heat pump. After the heat pump heats water, it is stored in a water tank. When there is a demand for hot water, such as for daily washing and kitchen use, it can be supplied stably and promptly. Even when the heat pump is not in operation, the hot water in the water tank can still meet the usage for a period of time, ensuring an uninterrupted supply of hot water for the household and enhancing the convenience and comfort of life.