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5. Venting the Boiler
WARNING
Improper venting of the boiler can result in excessive levels
of carbon monoxide, which can lead to severe personal
injury or death. Venting should be performed only by a
licensed professional.
No specific ventilation is required in the room the boiler is
installed in. If it is installed in a cupboard or compartment, no
specific ventilation is required, providing the aforementioned
dimensions are observed. The requirements and
recommendations stipulated in the Regulation for Heating
Installations in Buildings (RITE) and any other applicable
legislation in this field must be observed.
5.1 Flue Terminal Positions
CAUTION
The terminal must be fitted with suitable protection if it is
●
less than 2 m from a balcony, on a flat roof or surface that
could be accessed by people.
The wall that the gas removal and air intake ducts are
●
fixed to must not be made of combustible or flammable
materials. The wall that the end of the duct passes through
must lead to the outside of the home. There must be no
hazardous materials or obstructions near the duct.
If the outlet passes through a wall made of combustible
●
material the end terminal must be covered with at least
20 mm of incombustible material and must maintain a
distance of at least 50 mm from any flammable material.
The parts connecting the flue outlet must be correctly
●
joined using sealing gaskets. Ensure that there are no
leaks from any part of the removal circuit.
Switch off the boiler and wait for the pipes to cool down
●
before cleaning the gas removal and air intake ducts.
The gas removal and air intake ducts must be protected
●
from snow accumulation.
The installation of the flue exhaust and combustion air
intake system must be calculated and made by sufficiently
qualified and authorised staff. On designing and mounting the
installation, all national and local regulations, standards and
stipulations applicable at the time of installation must be taken
into account.
The minimum distances between the flue exhaust terminal and
the building elements must comply with those shown in the
following table:
30
Venting the Boiler
A
G
F
J
E
K
L
Terminal Position
From openings (e.g. doors, windows,
A
ventilation grilles)
B
Under a cornice or drainpipes
C
Under a gutter
D
Under a balcony
E
From vertical or horizontal pipes
From internal and external corners of
F
the building
G
From the ground, roof or balconies
H
(when no other outlet is installed)
From the wall with the pipe to the front
I
wall
From openings (e.g. doors, windows)
J
under the roof
K
Between two vertical ducts
L
Between two horizontal ducts
M From an adjacent vertical duct
N
From a front surface with openings
(*) The end of the removal duct must be at least 40 cm from any opening
in the façade.
(**) If the pipe is made of materials sensitive to combustible gases, this
distance should be at least 50 cm.
For vertical ducts, the outlet must be at least 60 cm
Note
from any opening.
B
BCD
F
M
G
A
F F
A
A
G
L
N
K
Minimum
Distance (cm)
60(*)
30
30(**)
30
30(**)
30
250
60
120
120
150
100
50
200
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