We claim the ornamental design of a fluid heater, showing our new design.
FIG. 1 is a first side elevation view of the fluid heater showing my new design. The broken lines shown in FIG. 1 are for illustrative purposes only and form no part of the claimed design.
FIG. 2 is a top plan view of that seen in FIG. 1. The broken lines shown in this view are for illustrative purposes only and form no part of the claimed design.
FIG. 3 is a bottom plan view of that seen in FIG. 1. The broken lines shown in this view are for illustrative purposes only and form no part of the claimed design.
FIG. 4 is a second side elevation view taken from a position, which is 90° offset from that seen in FIG. 1. The broken lines shown in this view are for illustrative purposes only and form no part of the claimed design.
FIG. 5 is a third side elevation view of the fluid heater, taken from a position, which is 180° offset from that seen in FIG. 1. The broken lines shown in this view are for illustrative purposes only and form no part of the claimed design; and,
FIG. 6 is a fourth side elevation view of the fluid heater, of the present design, and which is taken from a position opposite to that seen in FIG. 1. The broken lines shown in this view are for illustrative purposes only and form no part of the claimed design.