Hot water system combined with slot type solar thermal collector

The invention provides a hot water system combined with a slot type solar thermal collector. The hot water system comprises the slot type solar thermal collector, a buffer water tank, a steam-water separator, a heat storage water tank, a control cabinet and a circulating water pump. The heat storage water tank is connected with the buffer water tank and the steam-water separator. The buffer water tank is connected with the slot type solar thermal collector. The heat storage water tank is communicated with the slot type solar thermal collector through the circulating water pump. The control cabinet controls the work states of the buffer water tank, the heat storage water tank and the circulating water pump. By the adoption of the hot water system, the slot type solar thermal collector and the hot water system are combined for use, the energy-saving solar hot water system is provided, energy waste is reduced, and the use efficiency of solar energy is improved.