Hubby installed this a few weeks ago, ripped out builder installed fireplace (useless), re-bricked the hearth and walls behind. Quite a project. But our furnace hasn't kicked in in over two weeks. He found a cheap local source for scrap lumber which has made for great firewood, and will be cutting our own soon.
So far I've cooked a pot of beans, a roast, and a chicken on the stovetop.