The invention relates to the heating field, in particular to a multi-functional
water heating machine and a work method thereof. The multi-functional
water heating machine comprises a
water storage tank, a water pump, a heater, a first
water pipe, a heat radiator, a second
water pipe, a third
water pipe, a mattress, a fourth water
pipe and a circuit board, wherein a water filling port is formed at the top of the
water storage tank; the water pump and the heater are respectively connected with the circuit board; the third water
pipe is arranged in the mattress; the
water storage tank and the heater are respectively connected with the water pump; the heater is connected with the heat radiator; and the heat radiator and the third water
pipe are respectively connected with the second water pipe. The work method comprises the following steps: in heating, radiating heat by the heat radiator so as to heat a room; heating the room through the heat
radiation of the third water pipe; and delivering water evaporating in the
water storage tank to the room through the water filling port so as to increase the
humidity of the room. The multi-functional
water heating machine provided by the invention has multiple functions, and can be used for indoor heating,
bedding heating as well as room
humidity maintaining.