Hi folks we are looking at ripping out our 1970 gas fire and replacing it with a 5kw multi fuel fire Although it is not compulsary to fit a flue,can a nybody give me good reasons to fit or not fit a flue,or is it just another moneymaker. finally can you mix the fuels. thanks. ![Confused :confused: :confused:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)