UK/IRL
11
0
1
2
3
4
5
6
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
X
X
0
0
X
1
0
0
1,5
0
0
0
0
2
52.5 45/52.5
0
0
0
0
0
3
52.5 45/52.5 45/52.5
0
0
0
0
4
52.5 45/52.5 45/52.5 45/52.5
0
0
0
5
52.5 45/52.5 45/52.5 45/52.5 45/52.5
0
0
6
52.5 45/52.5 45/52.5 45/52.5 45/52.5
0
0
7
52.5 45/52.5 45/52.5 45/52.5 45/52.5 45/52.5
8
52.5 45/52.5 45/52.5 45/52.5 45/52.5
9
52.5 45/52.5 45/52.5 45/52.5
10
52.5 45/52.5 45/52.5
11
52.5 45/52.5
12
52.5
Horizontal extension
Effective height
Table Spectra, Spectra Panorama, Prisma and Cadra
Determine according to the table 2 the right total horizontal- and vertical length.
When meeting an X, and when the values are outside the table, the combination
is not allowed.
Table Silva
Determine according to the table 3 the right total horizontal- and vertical length.
When meeting an X, and when the values are outside the table, the combination
is not allowed. The value 45/52.5 means place a flue restrictor of 52.5mm when
using a roof mount terminal or 45 mm when you installing a wall mount terminal.
N
No
orrm
ma
allllyy tth
he
e 4
45
5 m
mm
m ffllu
ue
e rre
essttrriicctto
orr iiss p
prre
eiin
nsstta
alllle
ed
d..
0
1
2
3
4
5
6
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
3
0
0
0
0
0
0
0
4
0
0
0
0
0
0
0
5
0
0
0
0
0
0
0
6
0
0
0
0
0
0
0
7
0
0
0
0
0
0
8
0
0
0
0
0
9
0
0
0
0
10
0
0
0
11
0
0
12
0
Horizontal extension
Effective height
table 2
table 3
UK/IRL
10
fig. 2a
Hvert.
N
M
L
K
J
I
H
fig. 2b
Hvert.
A
F
G
E
D
C
B
Example calculation 1
Calculati0n horizontal extension fig. 2a:
Flue lenght C + E = 1m + 1m
2 m
Elbows
D
= 2m
2 m
Total horizontal extension
4 m
Measure or calculate effective height
(Hvert)
Flue lenght
A
1 m
Roof mounted terminal
1 m
Total effective height
2 m
When calculating on basis of the
Spectra table Nr. 2:
It is allowed.
When calculating on basis of the Silva
table Nr. 3:
Allowed but without flue restrictor.
Remove the flue restrictor!
Example calculation 2
Calculati0n horizontal extension fig. 2b:
Flue lenght J + L
= 0,5 + 0,5 1 m
Elbows
K + M = 2m + 2m 4 m
Terminal
1 m
Total horizontal extension
6 m
Vertical
Flue lenght
H
1 m
When calculating on basis of the
Spectra table Nr. 2:
It is allowed.
When calculating on basis of the Silva
table Nr. 3:
Combination not allowed.
