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5
COMBUSTION PRODUCT REMOVAL
The gas removal and air intake systems may be oriented in any direction (north, south, east or west).
Some special components such as elbows are used to help reach certain positions. Each removal
terminal kit includes an adapter for connection to the boiler and a removal terminal.
The total length of the tubes must not exceed the maximum value defined. If the removal installation
includes elbows, on calculating the total length, please note that each elbow has a resistance equal to
a specific linear Leq "equivalent length" (see table).
There are two different types of terminals (horizontal and vertical), for both the coaxial removal
system and the dual flow removal system.
Carefully study the diagrams representing the different types of removal and select the one that best
suits the conditions of your installation. To choose the removal accessories required for each
installation, please refer to the list of accessories on the
DOMUSA TEKNIK
price list.
Maximum total length:
Type
Pipe diameter
[mm]
Orientation
Maximum length
[m]
Coaxial
Ø60/100
Horizontal 10
Vertical 11
Ø80/125
Horizontal 20
Vertical 22
Dual Flow
Ø80/80
Horizontal
30
Vertical
Equivalent length of elbows and adapters:
Type
Pipe diameter [mm] Elbow
Equivalent length
[m]
Coaxial
Adapter
Ø60/100 -> Ø80/125
- 0.5
Ø60/100
45º 1.0
90º 1.3
Ø80/125
45º 1.0
90º 1.3
Dual Flow
Ø80/80
45º 1.4
90º 2.2
All accessories used for combustion product removal and air intake must be supplied by DOMUSA
TEKNIK.
