The utility model relates to a multifunctional heating system for households which is a multifunctional heating device used for heating indoors and providing hot water for shower, comprising a heat conductor, an opening and closing device, a liquid tank, a radiator, a shower nozzle, a hot water tap, and a connecting pipe which communicates with the elements. The inlet of the heat conductor is arranged on the lower part of the left side of the heat conductor, and the outlet is arranged on the top of the heat conductor; the inlet and the outlet are respectively connected with the opening and closing device, the liquid tank, the radiator, the hot water tap, and the shower nozzle by the connecting pipe. The heat energy liquid device composed of the heat conductor, the opening and closing device, and the liquid tank achieves the automatic closed cycle of a heating system. The utility model has the advantages of simple structure, low cost, hygienic use, high thermal inefficiency, and wide thermal source.