6
The exhaust connection may only be used with ap-
proved chimneys. The chimneys can be made of bricks
or metal. If the chimney is made of brick, make sure
that the exhaust pipe does not protrude into the chim-
ney, thereby having an adverse effect on the cross-
section.
G
The chimney must have an adequate chimney
draught.
Chimneys
The unit must be attached to chimneys.
Chimneys are structural systems either in or on build-
ings whose only function is to expel exhaust from fur-
naces above the roof.
If the roof is also the ceiling of the room where the unit
has been installed, the chimney can be made of sheet
steel. Each furnace must have its own chimney. Merg-
ing sheet steel chimneys is prohibited.
The chimney must be placed in a tube jointing sleeve
when passing through wall or roof penetrations so that it
can expand freely when heated.
The following are important when planning and con-
structing:
◊
The applicable furnace system ordinance.
◊
The applicable regional building code.
Installation
The unit may only be installed in accordance with the
applicable legal regulations and the ordinance on heat-
ing systems.
The unit must be securely placed on a non-combustible
surface outside of traffic zones.
A safety zone of 1 m must be maintained around the
unit.
The unit may not be placed too close to the wall or in a
corner so that any cleaning and maintenance work can
be performed in an unrestricted manner.
We recommend installing the unit on a sufficiently large
plate made of non-combustible material.
The unit must be set up and operated in such a way that
people are not exposed to exhaust or radiant heat and
fires are prevented from occurring.
The unit may not be set up and operated in rooms and
areas susceptible to fire or explosions.
The unit may not be operated in rooms that have above
or below average pressure or rooms where this can oc-
cur.
Heating units for solid fuels that remove combustion air
from the room where the unit is installed may not be set
up in rooms where ventilation systems or fans exhaust
or suck in air.
The unit may only be set up and operated in rooms if
there is an adequate supply of air for combustion and
the exhaust is expelled via exhaust flues.
A natural air supply sufficient for combustion exists
when, for example, the room content in m³ is equivalent
to at least 10 times the rated heat output in kW of all
heating units in operation in the room and natural air
ventilation is supplied through windows and doors or the
ratio of room content to overall heat output does not fall
below 4 m³ per kW.
If necessary, a separate combustion air supply must be
installed from outside.
Good natural ventilation exists when, for example,
the room content in m³ equals 30 times the rated
heat output of all units in operation in the room and
natural ventilation is supplied through doors and
windows or
there are non-closable openings for air output and
intake close to the ceiling and floor whose size in m²
equals at least 0.003 times the rated heat output in
kW of all heating units in operation in the room.
Expulsion of combustion gases
The unit is designed in such a way that it can only func-
tion correctly if gases are properly expelled. The ex-
haust connection must be installed correctly and comply
with the relevant standards.
If a chimney draught stabiliser is not in use, the effective
height of the chimney must be at least 4 m. By using a
chimney draught stabiliser (accessory, ref. no.
1034250), the chimney can usually be constructed using
the most ideal design. The chimney draught stabiliser
generates the necessary upwards propulsion (chimney
draught ).
The chimney’s diameter may not be smaller than 150
mm Ø.
The unit connection must be tightly sealed and secured
against inadvertent loosening.
Rivets or bolts.
G
Exhaust lines which bend in several places must
be extended accordingly.
G
The construction of chimneys always requires a per-
mit.
