I'm about to put a new enclosure together for one of my Redfoots. I was wondering does a CHE have to be mounted vertically? Or can it be mounted facing horizontally? I was thinking of mounting it facing sideways at the top of the enclosure so that the direct heat is not facing down towards the tortoise. This is a Redfoot so I don't need a basking area. I plan on setting it on a thermostat so that the whole enclosure stays close to the same temp. Has anyone ever done this?