The ornamental design for a cooking and/or heating apparatus, as shown and described.
FIG. 1 illustrates a perspective view of a cooking and/or heating apparatus employing an ornamental design in accordance with the present invention;
FIG. 2 is a front view of the cooking and/or heating apparatus of FIG. 1;
FIG. 3 is a back view of the cooking and/or heating apparatus of FIG. 1;
FIG. 4 is a left side view of the cooking and/or heating apparatus of FIG. 1;
FIG. 5 is a right side view of the cooking and/or heating apparatus of FIG. 1;
FIG. 6 is an enlarged top view of the cooking and/or heating apparatus of FIG. 1; and,
FIG. 7 is an enlarged bottom view of the cooking and/or heating apparatus of FIG. 1.
The broken lines shown in the drawings represent unclaimed portions of the structure and form no part of the claimed design. Furthermore, the interior surfaces that are shown without surface shading form no part of the claimed design.