Operating as an open fire
Setting combustion
Sliding the glass door
Some fireplaces cannot operate with
their glass door fully raised. In this
case the glass door can be raised to
about 2/3rd of its height [photo1].
Do not force.
Otherwise you have the choice of
operating the fireplace with its glass
door fully raised or at an intermediate
position (approximately 2/3rd of
its travel). In this position (easily
perceptible and marked with a notch
in the door jamb) [photo2] seals will
contain any smoke. Please avoid any
other intermediate position as this
could cause a slight back-draught.
It is quite normal to have an
impression of braking when moving to
the “partially raised” position.
The primary air damper will adjust
combustion. Open fully when starting
the fire,then progressively reduce as
required.
On the Stûv 21, it is also possible
to adjust the air intake sweeping
the inside of the glass door allowing
it to remain clean for longer. This
secondary air damper is normally
adjusted at mid-setting by the fitter.
It should be fine-tuned to optimise
the operation of your fireplace. The
adjustment is to be made when cold
and by small successive increments.
Please remember
The stove burns most efficiently when
it is closed (further explanations on
page9).
Caution
When operating a double-face
fireplace, only open one window at a
time !
Avoid leaving an open fire burning
unattended. Beware of sputtering
embers and in any case avoid burning
conifer woods, acacia and robinia.
Air inlet
Your Stûv consumes more air in open-
fire mode. Open the outside air inlet
completely.
Tilt the door to access the adjuster
next to the damper [photo 3].
If the glass door tends to soot-up
when primary damper is at its lowest
setting, increase minimum fresh air
intake by moving cursor to the right
[photo 4].
If the fire does not burn slowly when
primary damper is at its lowest setting,
reduce fresh air intake [photo 4] by
moving the slide control to the left.
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