L’ARTISTICO SRL |
EN
31
Cod. 40115 | Rev. 17 | 11/2020
15. THE CHIMNEY
The chimney must comply with the requirements
of UNI 10683, which is currently in force in Italy. For all
other countries, national and Europeans regulations
must be respected.
The appliance is not suitable for installation on shared pipes.
The device can only be connected to a single flue dedicated to it and
it must be done in order to allow the recovery of ash and must be
viewable, inspectable and cleanable with brushes. All chimneys and
pipes suitable for the connection must be fitted with a regular marking
plate indicating the characteristics as indicated in the Italian standard
UNI 10683.
Smoke evacuation system components designation example:
EN 1443
1
T400
2
N1
3
D
4
2
5
G50
6
1
Number of corresponding legislation
2
Temperature class (UNI EN 1443)
3
Pressure class: N or P or H (UNI EN 1443)
4
Condensation resistance class (UNI EN 1443)
5
Corrosion resistance class (UNI EN 1443)
6
Soot fire resistance class: G or O followed by distance from
flammable materials.
Temperature class (es: T400 minimum, T450-T600
suggested)
The chimney temperature class (as per UNI EN 1443) should not be
lower than the maximum exhaust gasses temperature declared by the
stove manufacturer.
For all appliances as per UNI EN 14785 (appliances for home heating
burning wooden pellet as fuel – requirements and testing procedure)
temperature class lower than T400 are not allowed. In any case
always check the stove data sheet for technical details but
temperature Txxx should be at least 50 °C higher than the maximum
smoke temperature.
Pressure class (smoke tightness) N
Since all chimneys must work in depression, the pressure class will be
N = negative
By the end a chimney showing this tag is perfect to fit a pellet stove:
T450N1D2GXX
Soot fire resistance class G
All smokestacks connect to appliances burning solid fuel must be soot
fire resistant; the designation letter will therefore be G followed by the
distance in millimeters (XX) (as per UNI EN 1443) from flammable
materials. The chimney has to be built as UNI 10683 regulation, for
all other countries, accordance with local and national regulations in
force.
WARNING The chimney must be hermetically
connected to the appliance but its weight should not be
burdened with it.
16. CONNECTING TO THE EXISTING SMOKESTACK
The connection to the existing smokestack has to fulfill the Italian UNI
10683 regulation. Piping with classification “O” and minimum distance
in millimeters xx is allowed provided that in case of soot fire all
connecting piping will be fully replaced in order to restore the original
conditions.
Please make sure only 3 direction changing of
maximum 90° and a 4 meters horizontal segment with a
slope of at least 3% are allowed (check following
examples).
Example with 2 bends 90°
Example with 3 bends 90° (maximum allowed)
The appliance can be connected to an existing smokestack only after
carefully checking it. In case the smokestack doesn’t show the
approved tag, a registered chimneysweeper has to certify it.
When connecting to not isolated smokestacks, draught problems can
occur. It is however forbidden connecting the stove to smokestack
with a diameter bigger than 200 millimeters; if the case slot-in a 120 –
150 millimeter pipe up to 6 meters or a 150 – 180 millimeter one over
6 meters of smokestack height. Always follow the UNI 10683
regulation, for all other countries, accordance with local and national
regulations in force.
Max
4 m
(mi
n. 3
%)
ø 150 mm min
1
2
3
1
2
ma
x 4
m
inc
lina
tio
n
> 3
%
Fig. 10
Fig. 11
Fig. 12
Ø 150 min
INSULATING
CONNECTOR T
CONNECTOR T
CLEANING
DIRECTION
CLEANING
DIRECTION
CLEANING DIRECTION
Max
4 m
(mi
n. 3
%)
ø 150 mm min
1
2
3
1
2
ma
x 4
m
inc
lina
tio
n
> 3
%
Fig. 10
Fig. 11
Fig. 12
Ø 150 min
INSULATING
CONNECTOR T
CONNECTOR T
CLEANING
DIRECTION
CLEANING
DIRECTION
CLEANING DIRECTION
