I am considering getting a rack from AP and I have a question. I'm most likely have to put this rack in my main room and not in the closet. My room temp fluctuates a lot during the year going anywhere from 75F to 70F. Im wondering if I got both back and belly heat installed if the back heat would be able to keep the ambients up enough. Or would getting a second set of flexwatt installed on the cool side be better.