FIG. 1 is a perspective view of a heating stove, showing my new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is an enlarged view of portion of FIG. 1; and,
FIG. 10 is another enlarged view of portion of FIG. 1.
The dash-dash broken lines show portions of the heating stove and form no part of the claimed design. The dot-dash broken lines shown in FIGS. 1, 9 & 10 define the boundary of the enlargement area and form no part of the claimed design.