ELECTRIC WATER HEATER

摘要

An electric water heater comprises an element plate with an electric heating element on the underside and a heat diffusion layer between the heating element and the element plate, wherein the heat diffusion layer is substantially thicker than the element plate so as to reduce noise generated while heating water. The element plate may have a noise reduction surface coating and/or treatment, the treatment preferably comprising surface roughening. The element plate may be incorporated in a vessel including an inhibitor for inhibiting noise.