FIG. 1 is a front plan view of the heating device;
FIG. 2 is a right side plan view of the heating device;
FIG. 3 is a left side plan view of the heating device;
FIG. 4 is a back plan view of the heating device;
FIG. 5 is a bottom plan view of the heating device; and,
FIG. 6 is a top plan view of the heating device.