The invention relates to a high-frequency
microwave heating
water heater, a 90 DEG cross fixed A, B casings, an A, B permatrons, a
microwave collective A, B spherical recessed surfaces and A, B metallic convex crown reflection surfaces, A, B laminated micas, longitudinal, horizontal repeat waterpipes, a
water storage tank, a waterpipe, and heat radiators are fixed inside a
metal shell, space of the A, B casings form A, B
microwave excitation cavity, the space in center of the
metal shell is used as
microwave effect cavity, whose inlet and outlet are conduit coupled, the longitudinal, horizontal repeat waterpipes are fastened with a fixing support pad at lower end of the
microwave effect cavity, the lower end of the
metal shell is separated into high-
low voltage parts to supply A, B magnetron power sources, the conduit
pipe in the
water storage tank connects with the heat radiators, the backwater returns to the longitudinal, horizontal repeat waterpipes throught a return
pipe. The invention has characters of high heating speed, high efficiency, low
energy consumption, small volume, good environment protection, adjustable
heating temperature, bactericidal action, easy operation, safety and credibility, the
water heater can be used for heating, washing face and rinsing mouth, washing clothes, showering etc.