KASTOR Melody 920, Installation And User Manual

Page: 35 / 58

35 / 58
Never use volatile ignition fluids to start the fire. It may cause flash fires that might endanger
the user and the product!
Shut off all devices that lower atmospheric pressure in the room such as range hoods and
mechanical ventilation.
The furnace should have a sufficiently large load of wood to ensure that a high enough temperature is
reached quickly. At low temperatures the burning process does not work correctly and the fireplace
and chimney are stained with soot. The fire may also go out, if the chimney does not build up enough
draught (-12Pa). Devices causing low pressure must be shut off or the window opened during the
ignition phase until the chimney develops enough draught to counter the low pressure.
During the ignition phase, about 5 min., the air regulators can be kept open or the feed door ajar.
Once the fire is going, you use the air regulators to adjust the burning to the level you want.
During the ignition phase, you use smaller firewood with a diameter of ca. 2-5cm with a length of 25-
33cm.
The load weighs about 1,8kg.
Always lay out the logs horizontally towards the rear of the furnace, with those on top slightly crossed.
(Picture 7).
Usually, a crumpled newspaper page, small, dry wood chips or an ignition piece are sufficient to get
the fire going.
3.2.2. Adjusting the heat output
The heat output can be adjusted as follows: Using the air feed regulators (Picture 24), by adjusting the
draught in the chimney with the damper plate or with the amount of wood
Usually, you do not need to add more than three logs at a time. (Large logs burn longer, of course.)
Never close the damper plate too far or the fireplace starts leaking smoke into the room.
The fireplace has regulators for primary air (grate adjusted with 10mm thick round axle (Picture 24))
and upper air (flat adjuster with triangle pointing towards the opening direction). With these, the
burning process can be regulated to your liking.
Slow burn: Grate adjuster closed and upper air regulator about one quarter open.
Normal burn: Grate adjuster and upper air regulator halfway open.
The draught in the chimney affects the positions of the regulators, so these instructions depend on the
fireplace's location and environment.
3.2.3. Heating
During the proper heating phase the logs should have a length of 25-33cm and a diameter of 7-9cm. A
single loading should be 1,8kg at a time, which is about three logs.
Do not put too much wood into the furnace.
Always lay out the logs horizontally towards the rear of the furnace, with those on top slightly crossed.
(Picture 7).
Once the wood has burnt down to embers, add a new load. You may spread the embers out on the
furnace floor.
3.2.4. Longer term heating
Before you add new logs, spread out the glowing embers on the furnace floor. Then add 2-3 large logs
on top of them. Leave the regulator plate completely open to help the wood catch fire. Once it burns,
you can shut the grate completely and leave the upper air regulator about one quarter open. If the
draught is still strong, close the damper plate a bit more
– but not so much that the smoke leaks into
the room.
3.3. Maintenance procedures
3.3.1. Maintaining the glass door
The glass is cleaned while it is cold. The easiest method is to use the efficient KASTOR NOKI-POIS
cleaning fluid (available in hardware stores). See instructions on the packaging.
Although the glass is hardened, it should be treated with
care (do not knock it, slam the door etc.).