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Catalytic Flueless Gas Fires and Stoves
Flueless or ‘catalytic’ fires operate without a flue or outside wall. A catalytic converter inside the fire filters the flue gasses (fumes) and removes all undesirable elements. All that emerges from the fire is carbon dioxide and water vapour. This type of fire is classed as 99% heat efficient as no heat escapes through any flue.
Permanent ventilation must be installed in the room where the fire is sited (such as an air brick in the wall of at least 100cm sq). An openable window or louvre is also required in the room the appliance is to be installed into. The minimum sized room suitable for the use of a flueless fire is around 30-40 cubic metres depending on the model. 40 cubic metres is around the size of a 14ft by 14ft room or 30 cubic metres a 12ft by 12ft room. Inset, wall mounted and stove versions of these fires are available.