Don't even think about it mate! The whole idea of the stove is that it uses it's own body to send the heat into the room rather than up the chimney, hence it gets fookin hot!! Mine has cracked all the plaster on the inside cheeks of the fireplace so beware. Also if you're fitting yourself you need to do it right as you won't have a hetas certificate on completion!
Only reason I mention this is because, if your new fire is deemed to have caused any problems in your house, ie burnt carpet or in the extreme case a chimney fire, your home insuranse Will Not be valid!!
Happy burning.