FIG. 1 is a front view of a water heater of the present design illustrating a portion of the present design;
FIG. 2 is a rear view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a perspective view showing front, top plan and right side thereof;
FIG. 8 is a perspective view showing rear, top plan and left side thereof;
FIG. 9 is an enlarged front view of the portion 9-9 of FIG. 1 thereof;
FIG. 10 is a cross sectional view of the portion taken along line 10-10 of FIG. 1 thereof;
FIG. 11 is a cross sectional view of the portion taken along line 11-11 of FIG. 9 thereof;
FIG. 12 is a cross sectional view of the portion taken along line 12-12 of FIG. 9 thereof;
FIG. 13 is a cross sectional view of the portion taken along line 13-13 of FIG. 9 thereof;
FIG. 14 is a front view of a water heater of an alternative embodiment of the present design illustrating a portion of the present design;
FIG. 15 is a rear view thereof;
FIG. 16 is a top plan view thereof;
FIG. 17 is a bottom plan view thereof;
FIG. 18 is a right side view thereof;
FIG. 19 is a left side view thereof;
FIG. 20 is a perspective view showing front, top plan and right side thereof;
FIG. 21 is a perspective view showing rear, top plan and left side thereof;
FIG. 22 is an enlarged front view of the portion 22-22 of FIG. 14 thereof;
FIG. 23 is a cross sectional view of the portion taken along line 23-23 of FIG. 14 thereof;
FIG. 24 is a cross sectional view of the portion taken along line 24-24 of FIG. 22 thereof;
FIG. 25 is a cross sectional view of the portion taken along line 25-25 of FIG. 22 thereof;
FIG. 26 is a cross sectional view of the portion taken along line 26-26 of FIG. 22 thereof;
FIG. 27 is a front view of a water heater of an alternative embodiment of the present design illustrating a portion of the present design;
FIG. 28 is a rear view thereof;
FIG. 29 is a top plan view thereof;
FIG. 30 is a bottom plan view thereof;
FIG. 31 is a right side view thereof;
FIG. 32 is a left side view thereof;
FIG. 33 is a perspective view showing front, top plan and right side thereof;
FIG. 34 is a perspective view showing rear, top plan and left side thereof;
FIG. 35 is an enlarged front view of the portion 35-35 of FIG. 27 thereof;
FIG. 36 is a cross sectional view of the portion taken along line 36-36 of FIG. 27 thereof;
FIG. 37 is a cross sectional view of the portion taken along line 37-37 of FIG. 35 thereof;
FIG. 38 is a cross sectional view of the portion taken along line 38-38 of FIG. 35 thereof; and,
FIG. 39 is a cross sectional view of the portion taken along line 39-39 of FIG. 35 thereof.
The broken lines shown in the drawings represent portions of the water heater that form no part of the claimed design of FIGS. 1-39. The long dashed and short dashed lines indicate only boundaries between the portions sought to receive design patent protection as a partial design and the other portions.