I just purchased an additional dryer for my wife. My breaker box is a Federal Pacific and I need a thick 30A breaker for the dryer. Unfortunately, I don't have room for another one. I read elsewhere that there exists something refered to as a "piggy-back" breaker. 1) Is this a realistic solution for my problem? 2) Do such breakers exist for my Federal Pacific box? 3) If yes to questions 1 & 2, where might I find or order one and how will it be listed? What specifically should I ask for? Any help or advise would be greatly appreciated!