Combustion Air Slide Valve; Regulation Of Combustion Air; Heating; Heating During The Transition Period - Olsberg Libra Instructions

Combustion air slide valve

Operating lever for combustion air supply
● Operating lever on "0":
all slide valves closed
● Operating lever on "I":
Secondary air slide valve completely open /
Primary air slide valve completely closed
● Operating lever on "II":
Secondary air slide valve completely open /
Primary air slide valve completely open

Regulation of combustion air

Position of operating lever:
"II" .....................Ignition position, max. heat output
"I" .....................Nominal heat output with billet wood
"I" .....................Nominal heat output with wood briquettes
"0" ....................Obtain glow
● As the secondary air also contributes to the cleanliness
of the glass pane, the operating lever should be set on
"I" minimum. This also applies in the event of low-load
operation.
● When not operating the lever should be set on "0", to re-
duce the cooling down of the room.
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Fire rust
Control lever for the fire rust
• The control lever can be used to set up the grate and
move the ash out of the firebox by sliding the grate
back and forth into the ash box.
• Primary air can only enter the firebox when the grate
is in the open position.
Wood storage
press here
The wood storage below the combustion chamber is
equipped with a magnetic pressure lock. It can be opened
by lightly pressing the button. The closure is also done by
pressing lightly.

Heating

● Only place the quantity of fuel required to achieve the
heating requirement.
For a nominal heating output 5,0 kW:
- max. 1,5 kg billet wood; burning time >45 min
- max. 1,3 kg wood briquettes; burning time >45 min
For max. heat output allowed:
- max. 3 kg billet wood
- max. 3 kg wood briquettes
● Open the combustion chamber door slowly for add-
ing new fuel, as otherwise the combustion gases can
escape.
● Empty the ash pan or combustion chamber in good
time. Otherwise it is possible for the combustion air in-
take to be blocked or for the grate to be damaged.
● Only remove the ash pan to empty it.
● Clean the ash pan compartment regularly after remov-
ing the ash pan to remove any ash that may have been
spilled (e.g. use a vacuum cleaner).
Attention:
Stove and any ash residues must have been left to
cool before being removed.

Heating during the transition period

Prerequisite for the stove to function well is the correct
delivery pressure (chimney draught). This very much de-
pends on the external temperature. Therefore, if the exter-
nal temperatures are high (above 16°C) the delivery pres-
sure can be disrupted.
What to do?
● Open the combustion air slide valve complete.
● Only put on a small quantity of fuel.
● Frequently stoke the ash.

Cladding

● The cladding may not be overheated, as cracks could
appear.
● Use a maximum of 3 kg wood or briquette for heating.
● As the natural cladding comes from a „grown" boulder,
structure and colour scheme may be very different.
● The surface may be altered under temperature
influence.

Special information

The manufacturer's guarantee expires if the stove is sig-
nificantly or permanently overloaded above the nominal
heating output, or if fuels other than those listed are used.
● The stove must only be used with the combustion
chamber door shut.
● Never remove hot ashes. Only store ashes in a fireproof,
non-combustible container.
● Attention: The surfaces get hot! Always use the en-
closed glove when operating the stove.
● Convection air openings may not be covered.
● Never use white spirit, benzene or other inflammable,
hazardous materials to ignite the fire.
● The combustion air supply fittings must never be al-
tered. In particular, it must be ensured that any neces-
sary combustion air pies are open while the fireplace is
being used.
● Do not make any changes or modifications to the stove.
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