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10
UK
IRL
Determining of the right flue restrictor
Calculate the total horizontal- and vertical
length of the flue, according to the
calculations displayed above.
Determine according to the table the right
flue restrictor size.
When meeting an X, and when the values are
outside the table, the combination is not
allowed.
Normally the 30 mm flue restrictor is
preinstalled.
3.3.1
Terminal position
Verify if the required terminal position meets the local installation regulations regarding
disturbance, good performance and ventilation. (Also see: safety requirements).
The terminal must be located so that the outlet is not obstructed. If the flue
terminal is located within 2 meters of a footway, path or where people could come
into contact with it, then a suitable terminal guard must be fitted.
Terminals located close to shared walkways, footpaths etc. could be subject to
legal constraints and this should be pointed out to the customer before installation.
If in any doubt about flue location advice should be sought from local building
control, or if appliance-related, from the manufacturer including wherever possible
a detailed sketch showing all relevant dimensions.
Avoid locating the terminal in close proximity to plastic materials such as gutters or
other combustible materials. If this is unavoidable then a suitable deflector should
be made.
Some important requirements for good performance are: The wall-mounted terminal
has to be at least 0,5 m off:
Corners of the building
Below eaves
Balcony's etc. unless the duct is dragged to the front side of the overhanging part
The roof mounted terminal has to be at a distance of at least 0.5 meters of the
sides of the roof, excluded the ridge
Horizontal extension (m)
Spectra
Frameless
0
1
2
3
4
5
6
0
X
X
X
X
X
X
X
0,5
X
0
X
X
X
X
X
1
0
0
0
0
X
X
X
1,5
30
30
0
0
0
X
X
2
30
30
30
0
0
0
0
3
40
30
30
30
0
0
0
4
40
40
30
30
30
0
0
5
50
40
40
30
30
30
0
6
50
50
40
40
30
30
0
7
50
50
50
40
40
40
X
8
60
50
50
40
40
X
X
9
60
60
50
50
X
X
X
10
65
60
60
X
X
X
X
11
65
65
X
X
X
X
X
Effective height (m)
12
65
X
X
X
X
X
X
