Sous Vide-driven steam table?

I woke up early this morning with an inspiration; not sure where the idea came from but has anyone here tried rigging up a steam table and used a sous vide stick to heat the water instead of Sterno? I was thinking taking up a half or quarter pan slot, cover with aluminum foil (maybe with styrofoam backing) with a hole in it for the sous vide stick.

A quick google didn't find anything on the interwebs; surely I didn't have an original idea!