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Q
Plume Displacement 70/110 dia Kit
1M Extensions, 45° & 93° bends
are also available - see literature
supplied with the kit for details
K
J
F
J
20
© Baxi Heating UK Ltd 2006
A - Standard Flue
C
B
L
M
N
H
D
E
D
R
G
7.0 Site Requirements
7.8
Flue options
Concentric
The maximum equivalent lengths are 4m (horizontal) or
(vertical). There lengths exclude the standard elbow and
flue/terminal assembly (horizontal) and terminal assembly
(vertical).
Twin Flue
The total maximum equivalent flue length is 150m.
NOTE: Each 1m of flue duct should be calculated as 2m.
Any additional "in line" bends in the flue system must be
taken into consideration. Their equivalent lengths are:
Concentric Pipes:
45° bend
93° bend
Twin Flue Pipe:
45° bend (air duct)
45° bend (flue duct)
90° bend (air duct)
90° bend (flue duct)
Detailed examples of equivalent flue length calculation are
given in the Installation Guidance Notes for each flue
system type.
(Documents 243501 and 243502 for concentric and twin
pipe respectively).
Key
Accessory
Concentric Flue System 110mm diameter
A
Horizontal flue kit
B
Straight extension kit
C
Bend kit
D
Bend kit (pair)
E
Horizontal flue terminal
Clamp
Twin Flue System 80mm diameter
F
Straight extension kit
G
Bend kit
H
Bend kit (pair)
Universal Vertical Flue Kits
J
Twin flue adaptor kit
K
Vertical flue terminal
L
Universal roof tile
M
Roof cover plate kit
N
Flat roof flashing
R
Vertical flue adaptor
Clamp
Q
Plume Displacement Kit
0.5 m
1.0 m
1.3 m
2.6 m
4.8 m
9.6 m
Size
Baxi Code
Number
850mm
236921
1000mm
241695
500mm
241694
250mm
241692
93°
241687
45°
241689
243013BAX
110mm
243014BAX
1000mm
238690
500mm
238692
250mm
238694
90°
246139
45°
246138
242757
242802
25°/50°
243015
243131
243016BAX
5106888
80mm
238684
5117383
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