High-area and low-area mixed water heating system

The utility model relates to the field of heating. The utility model provides a heating system capable of mixing water in a high area and a low area. High-area water mixing electric control valves areconnected to the junction of the high-area secondary network return water and the high-area primary network return water and the junction of the high-area secondary network supply water and the high-area primary network supply water; a high-area constant-pressure electric control valve is arranged at the water return position of the high-area primary network; a pipeline between the high-area secondary network return water and the low-area secondary network supply water is provided with a high-area to low-area water mixing electric control valve; the water supply booster pump is arranged on the high-area water supply pipeline; water mixing devices are connected to the junction of the low-area secondary network return water and the low-area primary network return water and the junction of the low-area primary netwo