4
Installing the flue through the chimney
European standards must be followed when installing the flue through the chimney. Due to the technical nature of these
standards they are mostly intended for professional installers. Following is a list of the relevant European standards:
EN 12446: 2003 - Chimneys – Components - Concrete outer wall elements
EN 1443: 2003 - Chimneys – General requirements
EN1856-1: 2003 - Chimneys – Requirements for metal chimneys - Part 1: System chimney products
EN1856-2: 2004 - Chimneys – Requirements for metal chimneys - Part 2: Flue and joints
EN13384-1: 2003 - Chimneys – Thermal and fluid dynamic calculation methods - Part 1:
EN 2006 - Chimneys serving one appliance
EN1857: 2003 - Chimneys – Components - Flues
EN1457: 1999 and Clay/ceramic flue liners - Requirements and test methods
EN 2002
EN 1806: 2006 - Chimneys – Clay/ceramic flue blocks for single wall chimneys - Requirements and test methods
EN13069: 2005 - Chimneys – Clay/ceramic outer walls for system chimneys - Requirements and test methods
EN 13063: 2006 - System chimneys with clay/ceramic flue liners - Part 1: Requirements and test methods for soot
resistance
Note: The flue must be safely and securely connected to the outlet pipe of the unit and the chimney must be swept at
least once a year in accordance with local regulations.
Only an appliance fitted by a professional installer guarantees compliance with building codes and safety regulations.
Compliance with the above rules is mandatory to ensure the appliance’s proper and safe operation. The chimney is an
extremely important element when installing the unit. Before installing, be sure to check compliance with local building
codes with authorised specialists. Please keep in mind the following considerations:
•
The door of the appliance must be closed at all times, irrespective of the appliance’s operating status (on/off).
•
The household must allow for a proper air venting when the appliance is in use.
•
The safety distances listed in the technical specifications table concerning combustible or high temperature sensitive
objects must be observed.
Safety distances
When installing the free standing fire unit, you must consider the specified safety distances between the unit and any
existing combustible materials. The figure below shows the safety distances that should be observed while installing the
free standing fire unit:
5. COMBUSTION AIR
Unlike a normal fireplace, this unit uses a low quantity of combustion air. In most households, the admission of fresh air
through existing gaps in doors and windows is enough to provide combustion air. However, in air tight households the
admission of combustion air may not be enough. Should this be the case, a vent grid must be installed on an outside wall
near the free standing fire unit, to provide for a positive source of outside air. Please also take into consideration the
registers of other heating systems or exhaust fans installed in the proximity of the unit or combustion air connection. You
might want to estimate the total amount of combustion air required for all the appliances. If 15 minutes upon lighting the
fire there is still a reverse draught of air due to weather conditions (i.e. fog or storm) stop the burning until the weather
improves.
Note: be sure to take into account any exhaust vents in the proximity of the free standing fire unit that may cause negative
pressure, thus disturbing the supply of combustion air. Any leak of combustion toxic gases is potentially hazardous and
can cause damage to the health of the occupants of the household.
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