I have a LVP flooring. I'm putting a hearth down in the corner of the room and want it to be as small and thin as possible. can I just use steel? do I need cement board? and can I just use the minimum hearth size and be, okay? This isn't a primary heat source and won't be used much but the floor is new and I don't want to ruin it. I'd like to use something like the steel hearth pad from ACE hardware or something similar? basically, I'm wondering how hot it will get under and around my stove without having it set up yet. over 110F? thank you for any/all responses.