The invention provides a home decoration integrated water heater, and belongs to the field of the new energy device. The home decoration integrated water heater comprises parallel boxes, an adjusting frame and at least one group of heat collecting tubes. The parallel boxes are installed at two sides of the adjusting frame. The vertical distance between the parallel boxes at two sides is greater than the length of the heat collecting tube. One group of the heat collecting tubes comprises two oppositely installed heat collecting tubes, and one end of each heat collecting tube is fixed and communicated with the parallel boxes, and the other end passes through the adjusting frame, is suspended to be installed and slidably connected relative to the adjusting frame. The upper end face of each parallel box is provided with a first fixing sheet, and the first fixing sheet is installed at the end away from the adjusting frame. One side, adjacent to the adjusting frame, of the lower end of the parallel box is provided with a second fixing sheet. The first fixing sheet and the second fixing sheet are connected with a wall body. The home decoration integrated water heater is flexible, and capable of satisfying the installation requirements of sunny windows of different sizes, and avoiding the risk of falling objects from high altitudes, and has the characteristics of simple installation and convenient maintenance.