Kalfire W Series, Installation And User Manual, Page: 33 / 68

This top spoiler also ensures that the window remains clean.
When the draught in the chimney exceeds 12 Pascal, and (very)
dry wood is being burned, you will be able to keep the window
clean for a considerable length of time.
However, soiling can occur on the window when the fire is
smothered by closing the air regulation.
The flames can be regulated by inserting the side of the key into
the groove positioned on the right-hand side of the Kalfire. Use
the right side of the handle (figure 3). By moving the key to the
left, you will minimise the air supply to the top spoiler; the fire will
burn more calmly (provided that the primary air valve has closed
automatically). By moving the key to the right, the air supply to
the fire will increase and the fire will burn more strongly.
5.4 Using the Kalfire W with an open or closed door
The Kalfire W can be used as an (open) fireplace or a stove (door
closed). The main difference, is that each use has a different air
requirement. For this reason, the Kalfire W features a fresh air
valve at the rear of the appliance (patent).
Advantage: The air required by the flue duct to ensure good
constant circulation is always introduced into the fireplace or
room in the most efficient and comfortable way. When placing
the fireplace, it is always important to take heavy air users into
account, such as large ventilation systems and extractor hoods.
These products use powerful motors to extract air, the pressure
difference built up naturally by a flue is far less.
When the door is open, the heat output will fall to about 20%. The
wood consumption will increase; as air has unregulated access to
the wood. The advantage is a cosy hearth fire.
•
Never leave an open fire burn without supervision; any
sparks could cause a fire.
•
Open the damper (if present) completely.
•
Only use the Kalfire W as an open fireplace if there is
enough draught in the flue.
•
Preferably use the fireplace with a closed door. This is
better for the environment and the heat output.
Closed door
Open (fireplace) door
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