The present invention provides an autonomous control system of central heating system and autonomous adjusting method of central heating system, in order to reduce thermal energy used for heating of rooms. The heating system of the invention comprises a heat exchanger 1, having heat exchanger 2 of the heat producer, heat exchanger 3 of the heat consumer or apartment house, radiator 13 equipped with thermostatic valve 14, adjusting valve 4 of heating water flow amount of the heat producer, controlled by the incoming signal from control/adjustment unit 5, as well as the circulation pump 10, which is integrated with or is connected in series with the reflux amount sensor 11, which is connected to the electronic circuit located in the control/adjustment unit. Electronic circuit 12 located in the control/adjustment unit 5 is configured to receive signals sent from reflux amount sensor 11 and adjust according to the flow amount through the circulation pump the adjusting valve 4 of the heat producer, which ensures that based on the work of the thermostats 15, the amount of the heating energy taken from the heat producer is adjusted, wherein thermostats 15 respond to changes in room temperature, thus during the operation of the heating system, for example, so called free energy produced by the sun, and the cooling effect of the wind to rooms on the windy sides of the building is taken into consideration.
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