Air Regulation; Primary Air; Secondary Air - Kalfire W60/51Fl Installation And Instructions Manual

6.3 Air regulation

The fireplace has two types of air regulation (ways in which fresh
air is guided into the fireplace):

1. primary air

2. secondary air

6.3.1 Primary air
The primary air is regulated automatically and ensures that the
wood is easily ignited. for optimal heat output, the supply of
primary air stops automatically after approximately 50 minutes of
heating. The primary air valve will close automatically.
when the primary air valve is closed, the air enters the
combustion chamber through the top spoiler. This top spoiler
also ensure that the glass pane remains clean. when the draught
in the chimney exceeds 12 pascal, and dry wood is being burned,
you will be able to keep the window clean for a considerable
length of time. using the secondary air regulation, you can
regulate the amount of air led to the fire via the top spoiler (see
section 6.3.2). This works best when the primary air valve is
closed (after approximately 50 minutes of burning).
6.3.2 Secondary air
You can regulate the flames yourself via the secondary air control,
which is located on the right side of the fireplace.
1. insert the side of the key into the groove of the secondary
air regulation. use the right side of the key.
2. by moving the key to the left, the air supply to the fire will
decrease. The fire will burn more calmly (provided that the
primary air valve has closed automatically).
3. by moving the key to the right, the air supply to the fire will
increase. and your fire will burn more strongly.
CAREFUL! never completely close off the secondary air
regulation. when the flames are extinguished, the glass
pane may become soiled.
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