Thinks hard,
Nope, I'm sure there are exceptions but I can't remember any a/c that I have worked on which have a de-iced empanage.
The nearest I can think of is the (non UK certified) Beech King Airs, in which the outflow valve vented into the tailcone/empanage area, thus perhaps providing a modicum of warm air to keep the area ice free. However for uk certification a duct was installed venting the cabin air outside of the fuselage.