As far as I can recall I don't remember any allegations over the years about Edward Heath, unlike Jimmy Saville & Cyril Smith.
From what I know of Heath's private life, I think he's on record as talking about an early romance with a woman who either died or went off and married someone else, and after that he remained wedded to his life as an MP, yachtsman and music lover.
Were there ever any wink-wink rumours about young boys being on his yacht or in his company? He may have been actively gay with adult men, I don't know, but could have just been a happy bachelor with no sex/romantic life.