The AC compressor is bad in my car and I don't want to deal with it until after the holidays. It seems that when I set the temp to any particular setting the system insist on activating the compressor. This makes zero sense and I've never had a car that does this just for heat. I read the owners manual but found nothing to overcome this. Am I correct that even the heat activated the compressor (which is a waste of gas) or am I just poorly confused and don't know what I'm doing?