Abstract: The invention relates to the technical field of solar water heaters, in particular to a forced circulation type solar water heater. The forced circulation type solar water heater comprises a heat collector and a water storage tank. The top end of the heat collector is connected to the upper portion of the side wall of the water storage tank through an upper pipeline, and the bottom end of the heat collector is connected to the bottom of the side wall of the water storage tank through a lower pipeline. A hot water outlet is formed in the upper portion of the side wall of the water storage tank, and a cold water inlet is formed in the bottom of the water storage tank. A water pump is installed on the lower pipeline, and the water pump and a check valve are connected with a PLC in a wired or wireless mode. Temperature sensors are installed at the water outlet end of the heat collector and the bottom of the water storage tank, and connected to the PLC in a wired or wireless mode. The forced circulation type solar water heater is simple in structure and reasonable in design, the PLC controls the water pump to work according to the temperature difference in the heat collector and the water storage tank, water in the heat collector and the water storage tank is circulated in a forced mode, and the heating effect is improved.
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