I'm planning on making a stackable viv. My plans are to make it 4.5 feet high 4 feet long and 2 feet deep. im going to just seperate it down the middle to make it into two. My grandpa is worried about the wood burning. Do I seal it with something? Since i'm not going to leave room in the middle of the two sections for ventilation i'm just going to put more vents on each. Does this sound okay?