Heat Miser is the more antagonistic of the two sisters; her mean, grumpy and hot-tempered personality partially comes from the fact that she feels that Santa Claus is unfair to him by giving Snow Miser lots of publicity while she gets none, and she believes that Mother Nature likes Snow Miser best. She also sings about her preference for hot weather. Heat Miser is also shown to be fairly disgusted by winter activities, barely being able to bring herself to even say "ice hockey".