Baxi Combi 133 HE Plus Installation & Servicing Instructions Manual page 21

Plume Displacement
70/110 dia Kit
K
J
F
J
© Baxi Heating UK Limited 2005
A - Standard Flue
C
B
L
M
N
H
7.10
D
Concentric
The maximum equivalent lengths are 4m (horizontal) or
5m (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 40m.
NOTE: Each 1m of flue duct should be calculated as 2m.
E
Any additional "in line" bends in the flue system must be
taken into consideration. Their equivalent lengths are:
Concentric Pipes:
Twin Flue Pipe:
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
Concentric Flue System 110mm diameter
D
A
B
R
C
D
E
Twin Flue System 80mm diameter
F
G
H
G
Universal Vertical Flue Kits
J
K
L
M
N
R
7.0 Site Requirement
Flue options
45º bend
93º bend
45º bend (air duct)
45º bend (flue duct)
90º bend (air duct)
90º bend (flue duct)
Accessory
Horizontal flue kit
Straight extension kit
Bend kit
Bend kit (pair)
Horizontal flue terminal
Clamp
Straight extension kit
Bend kit
Bend kit (pair)
Twin flue adaptor kit
Vertical flue terminal
Universal roof tile
Roof cover plate kit
Flat roof flashing
Boiler connection vertical concentric
Clamp
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
242886
80mm 238684
21