Balanced Flue?
Balanced flues work in conjunction with ‘glass fronted’ gas fires. The appliance is completely sealed from the room into which it is installed (so there are no draughts and heating efficiency is increased!) and a twin-wall pipe vents directly to an outside wall. Air for combustion is drawn in through the outer pipe whilst the inner pipe removes the combustion gases to the exterior of the property. Depending on the fire selected, the twin-walled pipe may exit horizontally through an external wall or vertically through the roof. No electric supply is required; therefore there is no sound with this flue system.
