Im a newbie here. I currently have a gas insert in my basement. I use it to heat it a room, bit wanted to try to heat thw whole basement. I found a Dare IV wood burning insert, free if I git it out. So here I am with an insert I know npthing about. I have flu block lined chimney with a flexible stainless insert. The wood insert is like brand new. Any help I can get is greatly appreciated. Thank you.