▎ 摘　　要

NOVELTY - This new utility model relates to water heater technology area, especially relates to a kind of one semiconductor water heater. Including use for water for heating to the heating cavity, the heating cavity comprises semiconductor heating plate, a water inlet, a water outlet, a connection set up in the heating cavity and connected in the water inlet and heating pipe of said water outlet, said semiconductor heating plate and the heating pipe heat guide, wherein the N type semiconductor and the semiconductor heating plate is set with graphene, or P-type semiconductor of the semiconductor heating plate is set with graphene, or the N-type semiconductor and P-type semiconductor is semiconductor heating plate are provided with graphene. The graphene layer increase of heat effect made of semiconductor heating plate, it only need and semiconductor heating plate is corresponding to the heating pipe in the water for heating, saving can consume.