@Rickster1963 here is some little secret tricks for you. well one main trick. if you just keep your heat or your air set to where you know it is comfortable, lets just use mine 73 for example, it is best to leave the heat on when it goes above 73, or your hair on when it goes below 73 depending on which you are using. if in the summer you turn your air off, and you don't turn it back on until it gets up to 77, it is going to run constent, and hard until it gets to 72 or 72. where if you just leave the air on, it will start working once it gets to 74/75 in your apartment, and cool it down, which mneans it will work a lot less to get it down to that temp, and work oless keeping it there.