7
Combustion air
supply
Output control
Outdoor air
connection
When the control is to the right, the primary air
feed is fully open.
Open
The air consumed in the combustion process has
to be replaced, particularly in well-insulated buil-
dings. The air feed to the hearth may be direct,
via an outdoor air connection, or indirect, via a
vent in an external wall. In the case of an outdoor
air feed, the stove connection point has a diame-
ter of 60 mm (see the diagrammes below for vari-
ous configurations for outdoor air-feed solutions).
If the air channel passes through a warm area
it should be insulated to prevent condensation.
The minimum mineral-wool insulation thickness
is 30 mm, with plastic foil on the outside. Anti-
condensation lagging may also be used.
The drawing to the right shows the way in which
air used in the combustion process passes through
the stove.
The combustion air feed is regulated by means of
a control located under the stove door. This is the
”primary” air-feed control, and it should be fully
or partially open during the combustion process
(see instructions on page 12). This ensures that air
passes over the glass surface and mixes with flue
gases, and this in its turn contributes to the com-
bustion process.
The air feed to the after-burning process (secon-
dary combustion) enters the stove at the bottom
of the stove, to the rear, and then passes to the
hearth backplate. The secondary air supply can-
not be regulated.
Integrally moulded
into concrete foun-
dation slab.
Foundations with
under-floor ventila-
tion.
Through the outer wall.
This involves making a
hole at the weak point
in the base.
Indirectly, via a vent in
the outer wall which
can be closed when not
in use.
When the control is to the left, the primary air
feed is closed.
Closed
When the control is in this position, an economy
output of 3-4 kW is normally achieved.
Economy position
With the control in this position, a nominal out-
put of 5.5 kW will normally be achieved (1.5
kg birch wood in the form of 3 logs).
Nominal position
0RIMËRREGLERBARFÚRBRËNNINGSLUFT
3EKUNDËREJREGLERBARFÚRBRËNNINGSLUFT
Primary, regulated air feed
Secondary air feed (unregulated)
