▎ 摘　　要

NOVELTY - The utility model claims a wall heating device, comprising a low expansion stone material, graphene heating film and main control module; a low-expansion glaze coating is covered on the front large surface of the low-expansion stone slab; the graphene heating film is attached to the rear large surface of the low-expansion stone material; the graphene heating film is provided with at least two electrodes; the main control module is electrically connected with the electrode of the graphene heating film, the main control module is used for controlling the graphene heating film to introduce or cut off the current. The utility model is environment-friendly, energy-saving, which can make the indoor air keep relatively high relative humidity, good for human health, beautiful and so on.