Second law of Thermodynamics. It takes additional energy to move heat up a temperature gradient, and you're not accounting for that. You can't move heat from a

Second law of Thermodynamics. It takes additional energy to move heat up a temperature gradient, and you're not accounting for that. You can't move heat from a cold source to a hot sink without paying for it somewhere. edit: I don't mind a downvote now and then, but I would really prefer a discussion or explanation to a fire-and-forget downvote.