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Items made of flammable materials may not be placed on top of or at a less-than-safe distance from the
fireplace stoves.
3.3 Chimney fire prevention measures:
Ordinary operation, especially with humid fuel, leads to the settling of ash and tar in the chimney. Neglecting
regular checking and cleaning of the chimney in accordance with the government regulation no. 91/2010
from 1
st
March 2010 supplying regulation no. 111/1998 Coll. increases the danger of fire.
In case of ash or tar catching fire in the chimney, please follow this procedure:
- do not under any circumstances extinguish the fire with water as it would create an abnormal amount of
steam and subsequently rip the chimney open
- if possible, the combustion chamber should be covered with dry sand, which will extinguish the fire
- close all intakes of air for combustion; if possible, cover the chimney. However, the smoke must not
accumulate back in the house
- contact your nearest fire fighting brigade to assess the situation and the necessity to report it as a fire
fighting emergency
- do not leave the house until the chimney is burned up; regularly check the chimney temperature and the
course of combustion
- contact a chimney service before starting a new fire in the stove to assess the state of the chimney and also
contact the manufacturer of the fireplace stove for inspection.
4. Assembly regulations
Warning: All local regulations, including regulations concerning national and European standards for
this type of appliances, must be adhered to:
ČSN 73 4230/2004 - Fireplaces with open and closable furnace
ČSN EN 13229/2002+A1/2003+A2/2005 - Built-in heating appliances and open fire inserts for solid fuel
ČSN EN 13240/2002+A2/2005 - Room heaters fired by solid fuel
ČSN 73 4201/2010 - Chimneys and connecting flue pipes - Design, construction and installation of heating
appliances
ČSN EN 1443/2004 - Chimneys – General requirements
ČSN EN 13501/2010 - Fire classification of construction products and building elements
ČSN 06 1008/1997 - Fire protection of heating appliances
4.1 General
The fireplace stoves must be installed on a floor with an adequate bearing capacity. If the existing
arrangement does not meet this basic requirement, necessary steps must be taken (e.g. using a mat for
distributing the load). Make sure that there is enough space for cleaning the fireplace stove, connecting flue
pipes and the chimney unless the chimney can be cleaned from other place, e.g. a roof or through doors
designed for this purpose.
4.2 Chimney connection
Before assembling the closed fireplace stove it is necessary to calculate that the chimney construction will be
suitable for the installed fireplace stove nominal output as far as design, vent size and effective height are
concerned.
A suitable chimney (minimum profile, chimney draft, tightness, etc.) is a basic condition for the proper
functioning of the fireplace stoves. You should therefore contact a chimney sweeper before installing the
fireplace stove. Chimney values are included in the attached technical sheet. A smoke shutter or a draft regulator
should be installed for chimneys with too strong a draft. Such a draft can cause problems during operation, e.g.
intensive burning, high fuel consumption and can also lead to permanent damage of the fireplace stove.
The minimum effective height of the chimney for exhaust gas from the stove is 5m (measured from the hoop
to the chimney mouth). The chimney entry must be equipped with a chimney hoop. Consult the vent connection
with the vent manufacturer. The vents must lead at least 5cm below the lower ceiling. Connect the flue mouth
with the chimney in the shortest possible way so that the flue length is at most 1/4 of the effective height of the
chimney (i.e. 1.5m). Connect the flue tube and the knee together with an overlap in such a way that the
connections always agree with the exhaust gas flow, or abut using the connection rings. If the connecting piece
passes through construction elements with flammable materials, it is necessary to use protective measures in
accordance with ČSN 06 1008/1997. The norm states that the flue pipe needs to rise to the vents in the direction
of exhaust flow with a degree of at least 3°. The tightness and firmness of the joints is crucial. The chimney and
stove connection must adhere to ČSN 73 4201/2010. The casing of the chimney must not exceed a temperature
of 52°C during the highest operation temperature of the stove. The cross section of the flue pipe vents must not
be larger than the cross section of the chimney vent and it must not narrow down in the direction of the
chimney. If calculations show that the cross section of the flue pipe and chimney vent could be smaller than the
cross section of the exhaust throat of the fireplace stove, the cross section of the flue pipes will be lowered
immediately behind the exhaust throat of the fireplace stove, either gradually or at a discrete point. The flexible
flue pipe from the materials in accordance with table A.1. may only used in places where it may be checked in
accordance with 7.2.1 ČSN 73 4201/2010, and unless the flue pipe leads through an open air its checkability
must be ensured in accordance with 7.2.5 ČSN 73 4230/2004. A vertical flue pipe may only be used in the cases
listed in 8.3.4 and 8.3.5 ČSN 73 4230/2004.
The fireplace stove may be connected to a shared vent with a gas appliance for multi-layer chimneys in
accordance with ČSN 73 4201/2010.
When installing Fischer GmbH fireplace stoves in the FRG in compliance with article 6.2.2 of the DIN
18896 norm, the fireplace stoves can be connected to a shared chimney.
4.3 Connection of fireplace stoves with exchanger to the heating system
Warning: Always have a specialist company take care of the project and assembly of your warm water
system and warm service water container
When installing the warm water system, it is necessary to adhere to the appropriate regulations listed in the
following norms and to respect the requirements on heat systems in buildings:
ČSN 06 0830/2006 – Safety devices for central heating and heating of service water
ČSN 06 0310/2006 – Project and assembly
ČSN 06 0320/2006 – Preparation of warm water – design and project
ČSN EN 12 828/2005 – Designing warm water heat systems
ČSN EN 13 240/2002+A2/2005 - Room heaters fired by solid fuel
ČSN EN 13 229/2002+A2/2005 - Built-in heating appliances and fireplace stoves for solid fuel
Warning: Article 3 par. 2.3 council regulation no. 97/23/EC "Pressure equipment" (corresponds to
government regulation no. 26/2003 - previously government regulation no. 182/1999) adjusts the need to equip
fireplace stoves and fireplace inserts with exchangers (with manual stoking of solid fuel for the production of
warm water with temperatures below 110°C) with a safety fuse against overheating. If the fireplace stove with
exchanger or fireplace insert with exchanger is not equipped with this fuse, then it is not required on the
product!
The fireplace stove exchanger needs to be connected with the warm water system via a screwed joint. To this
end the fireplace stove exchanger is equipped with screwed outlets. If you require off-season infrequent heating
only in the room containing the fireplace stove, it is necessary to "redirect" the exchanger output so that other
heat appliances do not overheat (e.g. water container). We always recommend connection with an
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