Heater

[0001]FIG. 1 is a front, right, top perspective view of a heater, showing my new design;

[0002]FIG. 2 is a rear, left, bottom perspective view thereof;

[0003]FIG. 3 is a front elevational view thereof;

[0004]FIG. 4 is a rear elevational view thereof;

[0005]FIG. 5 is a left side view of the enlarged scale thereof;

[0006]FIG. 6 is a right side view of the enlarged scale thereof;

[0007]FIG. 7 is a top plan view thereof;

[0008]FIG. 8 is a bottom plan view thereof;

[0009]FIG. 9 is an enlarged view of detail 9 in FIG. 1; and,

[0010]FIG. 10 is an enlarged view of detail 10 in FIG. 3.

[0011]The dashed broken lines depict portions of the heater that form no part of the claimed design.

[0012]The short-short-long dashed broken lines immediately adjacent to the claimed areas in the views represent the boundaries of the design and form no part of the claimed design.

[0013]The dash-dot-dash broken lines are for notating enlarged views and form no part of the claimed design.