 His nickname "Kleiderschrank auf Kufen" (wardrobe on skates) refers to his mighty appearance.In Finland he is known as "Iso-Eerikki" (Big Eric) for the same reason.After his playing career Kühnhackl worked as coach of EV Landshut, German National Team, EC Bad Nauheim, Erding Jets, Polar Bears Regensburg and the Straubing Tigers.