Some fireplace stoves are manufactured with a central air intake (
CAI
). This allows air to flow into the
combustion chamber in the fireplace stove from the exterior, halls, technical rooms etc. Fireplace stoves with a
CAI
are not dependant on the amount of air in the heated area. Thus, they not only contribute to a pleasant
atmosphere in your home, but also reduce energy expenses (since heated air already in the room is not
consumed).
Fireplace stoves with
CAI
are very suitable for installation into low-energy houses. It is also possible to
equip the heating system of some fireplace stoves with
CAI
with electronic combustion regulation to increase
comfort. This can additionally increase the combustion process and stoking intervals, increase operation safety
and prevent uneconomic heating and over-heating of fireplace stoves (the shutter of the central air intake is
controlled by a control unit and servomotor in relation to the current combustion phase and output exhaust
temperature).
Warning:
The fireplace stoves are not manufactured to provide continual heating and are intended for
periodic interrupted operation, mostly due to the need to empty the ashpan when the ash has cooled down.
3.
Safety regulations
The fireplace stoves may be used in normal environments in accordance with
ČSN 33 2000-1 ed.2/2009
. In
case of change of environment that could cause a temporary danger of fire or explosion (e.g. gluing linoleum,
PVC, working with paints, etc), the fireplace stove must be put out of operation in time, i.e. before the
occurrence of the dangerous situation. Furthermore, the fireplace stoves can be used only after the room is
thoroughly aired, preferably by wind draft.
A supply of sufficient amount of combustion air and room ventilation air must be ensured when the fireplace
stoves are in operation, especially with another heat device running simultaneously (approx.
8
to
15 m
3
for
burning 1 kg of fuel
)
! When doors and windows are tightly sealed, this might not be the case! This is solved by
a
CAI
connected into a separate room. The regulation grate for combustion, ventilation and heating air must not
be obstructed. When stoking fuel, always open the door very slowly. You will prevent smoke and ash from
escaping into the room. The fireplace stoves require casual attendance and inspection.
Flammable fuels must not be used for stoking or heating! In addition, burning plastic material of any kind,
wood materials with various chemical bonding agents (chipboards, etc) or unsorted domestic waste with
remaining plastics is prohibited by
law no. 201/2012
.
Make sure to prevent children from handling the fireplace stoves during heating. The fireplace stove
may only be operated by an adult person!
During heating all handles and knobs must be operated using a pair of tongs, hook or by a hand protected by
a glove (pot-holder) - there's a danger of burns! Objects made from flammable materials that could be set on fire
must not be stored on the fireplace stoves during operation and while hot. Please pay special attention when
handling the ashpan and when removing hot ash due to danger of burns! The hot ash must not get in contact
with flammable objects - e.g. when throwing in communal waste containers.
When the fireplace stove is used only seasonally and with unfavorable draft or weather conditions, special
attention must be paid when putting the stove into operation. When the fireplace stove is not in operation for a
longer period of time, the flue ways must be checked for obstructions before further operation.
The appropriate safety regulations for fireplace stove operation and installation must be adhered to in
accordance with ČSN 06 1008/1997, especially:
3.1
Safe distance:
3.1.1
Safe distance of fireplace stoves from flammable materials
When installing the fireplace stove in a place containing flammable materials belonging to class
B, C
and
D
,
the required safe distance in accordance with
ČSN 06 1008/1997
is
80cm
from doors and
20cm
in other
directions, unless otherwise specified by the manufacturer refer to the
Technical sheet and the Name plate
.
When installing the fireplace stove in a place containing flammable materials belonging to class
E
or
F
, the
distance must be doubled. Information on the degree of flammability of certain building materials is listed in
ČSN EN 13 501-1+A1/2010
and
ČSN 73 0810/2016
. When the prescribed safe distance of the heater from the
flammable materials cannot be kept, it is necessary to use a protective screen according to
4.4.1 ČSN 06
1008/1997.
Building materials sorted based on their reactivity with fire
A1 or A2
granite, sandstone, concrete, bricks, ceramic tiles, special plasters …
B
akumin, Heraklith, Lignos, Itaver …
C
hardwood, plywood, Sirkolit, hardened paper, umakart …
D
softwood, chipboards, Solodur, cork boards, rubber, flooring …
E or F
fibreboards, polysterene, polyurethane …
3.1.2
Safe distance of chimneys from flammable materials and building constructions
The safe distance from door case covers and similarly located building constructions from flammable
materials and from pipeline installation including its insulation is at least
20cm
. The safe distance from other
flammable parts of the building construction at least
40cm
according to
ČSN 06 1008/1997
. This includes
building materials belonging to classes
B, C
and
D
as defined in
ČSN EN 13501-1+A1/2010
(see table no.1)
The same applies for walls and especially ceilings with plaster on a flammable surface, e.g. crates, planks, etc.!
When the prescribed safe distances cannot be kept, the danger of fire must be prevented through construction
solutions, non-flammable applications, heat-resistant insulations or protection screens.
3.2
Floor protection
Unless the fireplace stove is installed on a
100%
non-flammable floor, it is necessary to place the stove on a
non-flammable insulation mat, e.g. metal plate (at least 2mm thick), ceramics, hardened glass, stone, in order to
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