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3.4 Supply of combustion air
The appliance must have enough outside air to ensure
problem free ignition. If lower values are established based
on the calculated volume of combustion air, building in the
appliance is for the risk of the installer.
The Kalfire has a built-in air supply valve; in normal situations no
extra air valve is required. In situations where the side gable is
subjected to frequent high winds or where there are large indoor/
outdoor pressure differences, it is advisable to mount an extra air
valve. In that case the valve must be clearly marked to indicate the
open and closed position. Inform the users about the function and
working of the valve(s).
Some air valve manufacturers use plastic sleeves. Mount
these outside the heat radiation range of the fireplace.
Ensure that the fresh air actually is outside air. For example,
if the combustion air originates from a cellar, this cellar
must have sufficient air vents to ensure that any extracted
air is replaced by fresh, outside air.
Ensure that the gratings are placed so, that they cannot
become blocked.
3.4.1 Fresh air connection base or rear
The standard for the Kalfire W, is that the fresh air connection
is situated on the rear. This connection can be relocated to the
base.
Method
1. Demount the connecting
collar at the rear of the
appliance.
2. Demount the closing
plate at the base of
the appliance. Mount
the closing plate in the
former position of the connecting collar.
3. Mount the connecting collar on the base of the appliance
in the former position of the closing plate.
3.4.2 Fresh air connection without connecting collar
If there is not enough space for the connection collar, you can
demount this and the air connection using a built construction.
In this case, the fireplace is positioned on or against an opening
for fresh air. Use a ceramic
cord to seal off the transition
between the fireplace and the
constructed opening (Available
as an option).
Examples:
•
The fireplace is
positioned against an
opening to a cellar.
•
The fireplace is
positioned against an outside wall, which has an opening to
the outside air.
16
Kalfire W connection kit (optional):
•
Ceramic cord to fill gaps of max. 2 cm.
•
Metal strips to attach the cord to the Kalfire.
3.5 Supply of
convection air
The Kalfire W is surrounded
by a convection mantle,
that warms up the room in
a constantly pleasant and
efficient manner.
For this system to operate
to its maximum effect, a
convection set is required.
This optional convection set
consists of:
Kalfire W45/48F and W60/51F
•
Four flexible aluminium hoses Ø150 mm, 1.25 m (two hoses
of 2.5 m that are divided into four hoses).
•
Eight clamping strips.
•
Four gratings (outer dimensions 20 cm × 20 cm, recess
dimension 16.5 cm × 16.5 cm, with connection collar
Ø150 mm).
•
Mantel iron; this must be sawn to the correct size.
•
Roll of felt to create an expansion joint between the metal of
the mantel iron and the surround.
This convection set is ordered separately to the Kalfire. Instead of
a grating, openings (for example recessed plinths) can be used.
Do not reduce the convection openings.
Place all gratings/openings, both upper and lower, to facilitate the
natural circulation. The gratings/openings should be situated in
the same pressure area (the same room) as the Kalfire.
Kalfire W70/33F, W71/62F, W85/40F, W100/61F,
W105/47F
and W120/38F
•
Four flexible aluminium hoses Ø150 mm, 1.25 m (two hoses
of 2.5 m that are divided into four hoses).
•
Four flexible aluminium hoses Ø150 mm, 0.62 m (one hose
of 2.5 m that is divided into four hoses).
•
Sixteen clamping strips.
•
Four gratings (outer dimensions 35 cm × 20 cm, recess
dimension 33 cm × 16.5 cm, with two connection collars
Ø150 mm each).
•
Mantel iron; this must be sawn to the correct size.
•
Roll of felt to create an expansion joint between the metal of
the mantel iron and the surround.
Kalfire W65/38C
•
Two flexible aluminium hoses Ø150 mm, 1.25 m
(one hose of 2.5 m that is divided into two hoses).
•
Four hose brackets.
•
Four grills (outer dimensions 20 cm × 20 cm, recess
dimension 16.5 cm × 16.5 cm, with connection collar
Ø150 mm).
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