We inherited a multi fuel stove when we moved in and it's looking a bit odd. I've never had one before so don't know what normal is. Is the cracking an issue? If so are these things repairable? I have no idea who even to call in to have a look at it. We've had the chimney swept and the guy didn't mention anything. Rather not replace it if we can help it and it seems to work fine but I don't want to keep it if it's dangerous! Thank you. (Excuse the half-burnt stuff - I've not cleaned it since we used it last!)