Hi all - I use a small space heater under my desk all the time because I am always cold. I worry sometimes that it's annoying other cube-neighbors, either by making their space too warm for them, or the sound of the fan. One of my closest colleagues (who is one cube over) is always hot, I am always cold, etc. So I thought maybe a heated foot rest without a fan would do better for all of us. Does anyone have a recommendation? Reviews on websites are mixed.