Technical data
Technical documentation 
Technical documentation
STEM ed 05/99 
17
EXTRA MINI 
Coupling type vertical concentric kit 60 /100 
The exhaust pipe (φ 60 mm) is fitted inside the 
extraction pipe (φ 100 mm). 
Connection to the boiler is made using a flange (1) 
that, by means of the necessary extensions, must be 
connected to the special 60/100 extraction and exhaust 
end with aluminium tile. 
Max possible overall length is 4.7 straight and 
vertical metres. 
Coupling type vertical concentric kit 80 /125 
The exhaust pipe (φ 80 mm) is fitted inside the 
extraction pipe (φ 125 mm). 
Connection to the boiler is made using a flange (1) 
that, by means of the adapter 60/100-80/125 (3) and 
necessary extensions, must be connected to the special 
80/125 extraction and exhaust end with aluminium tile 
(2). 
Max possible overall length is 12.2 straight and 
vertical metres. 
80/80 coupling type separator kit 
Both pipes have a diameter of 80 mm. 
Connections to the boiler are made using two special 
flanges for exhaust (1) from the centre pipe and 
extraction (2) from the side hole. 
Max possible length (extraction + exhaust) is 33 
straight horizontal metres and 41 straight 
vertical metres. 
To prevent condensation problems, the exhaust pipe 
should not be more than 5 m long 
Insulated 80/80 coupling type separator kit 
Both pipes have a working diameter of 80 mm. 
Connections to the boiler are made using two special 
flanges for exhaust (1) from the centre pipe and 
extraction (2) from the side hole. 
Insulation is obtained thanks to special seals (3) 
whereby an air space can be created by means of a φ 
125 mm external concentric pipe. 
Max possible length (extraction + exhaust) is 33 
straight metres. 
To prevent condensation problems, the exhaust pipe 
should not be more than 12 m long 










