Great to cook on/in, and they keep the kitchen warm as well. We had them in several houses when I was a child, and we have one at home now - buy it and you'll not regret it, although your wallet might.
I have owned 2 and they are an expensive waste of time. In both cases I had them taken out and sold them to some unsuspecting souls moving to the country who neede their egos massaging. I bought one of these at a fifth of the price, much easier and better to use.....click here