Demands On The Installation Space; Combustion Air Supply; Combustion Air Supply From The Room - Austroflamm 65x Montagehandbuch

EN

2 Demands on the Installation Space

Fireplaces must not be installed in...
• spaces in which the required combustion air supply is not ensured
• spaces which are generally accessible, especially escape routes. Staircases in residential buildings with no more
than two apartments are not considered to be generally accessible spaces.
• spaces in which highly inflammable or explosive substances or mixtures are processed, stored or produced.
• rooms, apartments or utilisation units from which air is extracted with the aid of fans, such as warm air heating
systems, extractor hoods and vented tumble dryers, unless it can be guaranteed that the fireplace insert will function
without causing any danger.
This is guaranteed if...
• the systems only circulate air in one room;
the systems are equipped with safety devices that automatically and reliably prevent negative pressure in the instal-
•
lation space.
• simultaneous operation of the heating unit and air-suction system is prevented by safety devices;
• the flue gas evacuation is monitored by special safety devices;
• in total, no more than 0.04 mbar negative pressure is created by the combustion air flow of the fireplace insert and
the volume flows of the ventilation systems in the installation space and the spaces connected via a ventilation
network. This must be guaranteed even if easily accessible devices controlling the ventilation system are adjusted
or removed.
In all cases, for controlled residential ventilation, we recommend a room sealed fireplace, tested by the German Institute
for Construction Technology (DIBt), with increased impermeability in respect of the installation room.
2.1

Combustion air supply

CAUTION:
In the case of fireplaces that draw their combustion air from the room in which they are installed, a sufficient supply of
combustion air into the room must be ensured. Other fireplaces or air extraction systems in the installation room or
combustion air system may require a separate combustion air supply from outside.
Air-suction systems (e.g. ventilation system, extractor hood, etc.), which are operated together with the fireplace in the
same ambient air system, can disturb the combustion air supply and may require additional safety measures in accord-
ance with fire regulations.
2.2

Combustion air supply from the room

The Austroflamm fireplace insert obtains its combustion air exclusively via a combustion air nozzle. For models 80x64S,
97x45/74S and 120x45S the combustion air nozzle is mounted on the left or right side of the appliance. All other models
described in this document have the combustion air nozzle on the base of the appliance. For this reason, a properly
functioning air supply to the heating chamber must be ensured. To this end, it is essential to dimension the cross-
sections of the circulating air correctly, in addition to the necessary cross-section for the combustion air. The correct
positioning of the appropriate openings into the heating chamber is of great importance. If this is not observed, a lack
of air can occur during combustion. For a sufficient supply of combustion air, we recommend a closed combustion air
duct between the combustion air nozzle on the fireplace insert and the circulating air grid.
CAUTION:
The combustion air nozzle should always be connected, otherwise combus-
tion air will not be fed into the firebox.
FIREPLACE INSERTS / SLIDING DOOR
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