Fixing a radiator to a stud wall can be difficult, but it is possible using the correct plasterboard fixings. In this video I use snaptoggles to fix a small radiator to a plasterboard partition. If you decide to use another fixing to fix to the drywall please ensure you use a heavy duty fixing which will ensure the radiator never moves or works loose. You can get Snaptoggles here- http://fave.co/1NB0bMp