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2.4 COMBUSTION AIR SUPPLY
Fireplace cassettes may only be installed in rooms with at least one door
to the outside or a window that can be opened or are directly or indirectly
linked to a combustion air supply in other rooms. When the cassettes are
installed in apartments or other functional units then only those rooms in
the same apartment or functional unit may be counted as being linked for
combustion air supply purposes.
2.5 COMBUSTION AIR PIPES
According to the state building regulations - which correspond to Article
37, Paragraph 2 of the Model Building Regulations - combustion air pipes
in buildings with more than two full floors and those pipes that bridge fire
walls must be constructed in such a way that fire and smoke cannot be
transferred to other floors or fire compartments.
PLEASE NOTE: The guidelines for fire protection requirements in ventilation
systems (draft template) – version January 1984 – can be used to show how
the previously named regulations can be fulfilled.
2.6 FLOW RESTRICTORS
Flow restrictors may only be installed in exhaust gas sockets or in flue
pipes. Flow restrictors must be easy to operate. They must have openings in
the form of circular sections, which have a continuous area not less than 3%
of the cross-sectional area, and be at least 20 cm
flow restrictor must be identifiable by the position of the operating handle.
in size. The setting of the
2
GB 10
2.7 GENERAL REQUIREMENTS FOR THE USE OF
FIREPLACE CASSETTES IN EXISTING FIREPLACES
The fireplace cassettes are suitable, amongst other things, for retrofitting
into existing fireplaces. Please observe the following installation instruc-
tions before installing the fireplace cassette (read the instructions before
starting the installation of the fireplace cassette and then observe the
instructions during installation):
• Please inform the responsible heating inspector/chimney sweep in your
district before installation.
• The existing open fireplace into which the fireplace cassette is to be
installed must correspond to the guidelines for the construction of fire-
places and the regulations in DIN EN 13229.
• The fitter must satisfy themselves as to what extent the open fire-place
corresponds to these requirements. If necessary, the fitter must carry
out any required corrective work.
• It must be ensured that the flue pipes, exhaust gas collection chamber
and chimney are operationally safe and fireproof.
• Open fireplaces that are retrofitted with a fireplace cassette must have
their own chimney.
• Open fireplaces may only be installed in rooms and locations where no
danger results from their position and structural conditions.
• The installation room must have sufficient combustion air flow.
• The surface area of the installation room must be designed in such a
way and be large enough to ensure that the fireplace can be properly
operated.
FIREPLACE CASSETTES MUST BE INSTALLED BY SPECIALIST FITTERS OR
SPECIALIST COMPANIES.
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