I have an attic bedroom with a gas supply for a fire. There was one in place when I bought the house. The fire was condemmed and taken away. I am now about to replace it but have been told I have to have an outset fire (after buying the wrong fire!) The ones I have seen are not very attractive and I want to check if I would be able to have a flueless fire instead. The chimney has a letterbox style fitting where the fire apparently slots into. Any help appreciated.