I got an under the tank heater and it says to put carpet down on the bottom of the tank so he wont dig through my aspen and moss and lie down on the glass but i havent seen him dig yet. should i put down the carpet or just keep it how it is. what do you do for your uth

also i didnt do the side mount,i did the under mount but i put it on top of my dresser and it has the feet on tho. will it burn my dresser