I have a wood burning fireplace insert that does a decent job of heating part of my house, but it also dries out the rooms quite a bit. I know with a wood stove some people put a cast iron kettle on top, but obviously there's no way to do that with my insert. I also don't think a fireplace crane would be a good idea since I'd have to mount it to the inset drilling extra holes in the side of the firebox. Any advice on how to maintain or replaces one of the humidity in conjunction with an insert?