I bought a small portable heater to use as a back up, but something I wonder about is will it damage the flooring that it sits on? Do you know if they should be placed on something to keep this from happening? Or are they made to be set on the floor so won't harm it?
We have carpet. I wonder about getting some kind of material such as they have under wood burning stoves- there used to be like a square metal piece. But surely people who plug in their space heaters don't go to so much trouble.
I have never seen one harm the flooring. I am sure it could, depending on what type of flooring you have maybe you could set it up on a table or step stool