The ornamental design for a regulator for a heatinginstallation, as shown and described.
FIG. 1 is a perspective view of a regulator for a heating installation showing our new design, in condition of use;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a front elevational view thereof;
FIG. 7 is a rear elevational view thereof;
FIG. 8 is another perspective view of the regulator for a heating installation;
FIG. 9 is a top plan view thereof;
FIG. 10 is a bottom plan view thereof;
FIG. 11 is a right side elevation view thereof;
FIG. 12 is a left side elevation view thereof;
FIG. 13 is a front elevational view thereof; and,
FIG. 14 is a rear elevational view thereof.
The broken lines adjacent to the shaded areas are shown for the purpose of illustrating portions of the regulator for a heating installation and form no part of the claimed design. The other elements shown in broken lines in FIGS. 1 through 7 are shown for the purpose of illustrating environment and form no part of the claimed design.