Control unit for heating system

Description

FIG. 1 is a perspective view from in front and the right of the invention, the not shown left side being identical to but a mirror image of the visible right side;

FIG. 2 is a front elevational view of the invention; and,

FIG. 3 is a bottom view of the invention, the back side of the invention being disclaimed.

Claims

The ornamental design for a control unit for heating system, as shown and described.