The ornamental design for a radiant heatshell which serves as a covering and heatreflector for diesel burners and is part of an airportrunway de-icing system, as shown and described.
FIG. 1 is a plan view of the design;
FIG. 2 is a enlarged top, end and side perspective view, the opposite side
being a mirror image of that shown;
FIG. 3 is an enlarged end view, the opposite end being a mirror image of
that shown; and,
FIG. 4 is a front view.
The bottom of the design is flat and unornamented.