Portable heater

FIG. 1 is a perspective view of the portable heater design;

FIG. 2 is a left side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a front view thereof.

The broken lines shown are for illustrative purposes only and form no part of the claimed design.

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