Advertisement
3.0m
1.5m
A-CLASS
GS
3.0m
50mm/metre fall
1.5m
A-CLASS
GS
M
a
i x
m
u
m
e
q
i u
a v
e l
n
f t
0 6
1 /
0 0
C
o
n
e c
t n
c i r
0 8
1 /
5 2
C
o
n
e c
t n
c i r
0 9
0
E
b l
o
w
5 4
0
E
b l
o
w
G
b a
e l
T
r e
m
n i
RIDGE TERMINAL FLUE KIT
0.5m
0.5m
2.0m
E
q
i u
a v
e l
t n
F
u l
e
e L
6
0
u l
e
e l
n
g
h t
(
m
)
l f
e u
p
p i
e
l f
e u
p
p i
e
l a
3.0 DESIGN/TECHNICAL
Two examples of how to calculate the
equivalent flue length for the typical 60mm
diameter flue system installations shown
opposite , using the Table below, is as follows.
1. Concentric flue pipe length
1.5m x 2 = 3.0m
Single flue pipe length
3.0 + 0.5 = 3.5m
Equivalent length of fittings
2 x 45° bends x 1.5m = 3.0m
Total equivalent flue length
3.0 + 3.5 + 3.0 = 9.5m
If the flue needs to run along the roof space
before rising, this would be calculated as
follows.
2. Concentric flue pipe length
1.5m x 2 = 3.0m
Single flue pipe length
3.0 + 2.0 + 0.5 =5.5m
Equivalent length of fittings
1 x 90° bend x 1.9m = 1.9m
2 x 45° bend x 1.5m = 3.0m
Total equivalent flue length
3.0 + 5.5 + 1.9 + 3.0 = 13.4m
As long as the flue pipework always runs back
to the boiler at a minimum fall of 50mm/metre,
any pipework configuration can be used as
long as the equivalent total air/flue length is
less than the maximum equivalent flue length
shown in the Table below.
n
g
h t
a T
b
e l
m
m
S
s y
e t
m
8
1
7
m
2
0 .
-
1
9 .
1
5 .
0
5 .
Page 6
0
m
m
S
s y
e t
m
6
0
m
-
2
0 .
5
3 .
4
0 .
2
7 .
Advertisement
Need help?
Do you have a question about the GulfStream A-CLASS and is the answer not in the manual?
Questions and answers