Hurrah i think it has finally gone!!! Went in to the room this morning to retrieve a bag of gifts for my sister's birthday tomorrow and i couldnt smell what ever it was. So hoping the advise about opening window, shutting door and putting the heating on has solved the issue. Actually have only had heating on twice so am wondering if the issue was the new radiator, Guess i will never know but reieved it has disappeared, hopefully for good. 
AIBU To Be So Annoyed at the Stupidity of This
