Heat accumulator

Description

FIG. 1.1 shows a perspective view of the heat accumulator showing the new design;

FIG. 1.2 shows a first side view of the heat accumulator in FIG. 1;

FIG. 1.3 shows a second side view of the heat accumulator in FIG. 1.1 rotated 180 degrees around the longitudinal axis compared to FIG. 2;

FIG. 1.4 shows a front view of the heat accumulator of FIG. 1;

FIG. 1.5 shows a rear view of the heat accumulator in FIG. 1.

The broken lines shown in the drawings are for the purpose of illustrating portions of the heat accumulator that form no part of the claimed design.

Claims

The ornamental design for a heat accumulator as shown and described.