The sheep has arrived and it fits perfectly. It’s a simple but brilliant solution and the heart I got to hang from the end is so pretty and adds something decorative in its own right, not just a reminder not to use the fire and accidentally roast the sheep! I shall be recommending these to people I know, especially since they are so easy to fit and such an economic way to cut down on the carbon footprint as well as reduce heating bills, since we only actually use the fireplace occasionally. And when needed it’s so easy to remove and replace.