A first hint what the name "Heidbüchel" means I got while studying in Aachen. There was a street called "Am Büchel" going up a hill.

A few years later I learned that in different areas in Germany words like Bügel, Bückel, Büchel etc. mean something like hill or small mountain.

When I looked into a book with explanations of different names I learned that the part "Heid" of a names means "great" or "big".

Next I discovered a hill named Heidbüchel in the Eifel. This hill is near by the small town Adenau and the Nürburg Ring. The height of this hill is 601 meters.

So I think that the meaning of the name "Heidbüchel" is something like "great hill".