The invention discloses an integrated central
water heating system, which comprises a living
water supply pipe, a heating component, a water inlet
pipe, a water outlet
pipe, a heat collector, master
control equipment and a
water supply pipeline, wherein the heating component, the water inlet pipe, the water outlet pipe, the heat collector and the master
control equipment are arranged in a
water heater and connected with the living
water supply pipe; the heat collector is connected with the water inlet pipe and the water outlet pipe; the master
control equipment is electrically connected with the heat collector; the water supply pipeline is used for a plurality of
water consumption points and is connected outside the master control equipment; the
peripheral water supply pipeline of the
water consumption points is provided with a water mixing valve connected with the living water supply pipe, and the water outlet pipe of the heat collector respectively; a control device controls the communication between each pipeline and the closing of the pipelines in a
time sharing way; a circulating water loop and a cold water
branch pipe are mutually independent in a preheating mode and an anti-freezing mode; and a hot water conduit and a return water conduit are mutually independent in a bath mode. The integrated central
water heating system not only can recycle water between a hot water outlet and a heating part of the
water heater so as to save water, but also has the characteristics of instant
water heating, multi-point and multi-temperature water supply, and intelligent anti-freezing property.