Opinions differ but based on my experience I would say yes. First the unit is starting under a heavy load every time you restart it. Second you will notice that rust will build up much quicker than normal because the unit will condensate a lot as it warms up and even the aluminum parts will get electrolysis and get a white powdery film and start to break down faster. Not to mention that bugs will gravitate to the unit for moisture and a place to hide when it's warm and wind up inside the walls going dormant when it's freezing.