Tablo very hot to the touch. Don't want to burn the kitties

Is the hot Tablo common? I don’t mind in the winter but it throws off too much heat in the summer. I makes a nice place for my kitties to relax.
It is sitting on a credenza below the TV on the wall so it is not enclosed which would keep it hot. So what is the problem with it?
Would it be some part that is causing this? Hoping it is not doomed as I have had it for 12 months.