FAIR S7 Maintenance And Use Manual page 6

Maximum capacity of electric ventilation(m
Over 50 and up to 100
Over 100 and up to 150
Air necessary for combustion Air necessary for combustion
Air necessary for combustion Air necessary for combustion
All types of combustion need air (oxygen). Hence, every stove extracts air from the room in which it is
installed and then the air has to be returned. Bad combustion may be caused by poor air circulation inside
the house and this often occurs in modern homes, which have hermetically sealed doors and windows. The
situation can also be problematical when, on the other hand, there are drafts inside the room (generated by
fans in the kitchen or bathroom for example).
To avoid this type of problem we recommend installing a permanent ventilation grid in a window or near the
stove. Air intake directly from the outside is compulsory.
WARNING!
Use only steel pipes. Pipes in synthetic material are aluminium must never be used.
Comburent air duct Comburent air duct
Comburent air duct Comburent air duct
We recommend to vent the flow of air for combustion purposes directly from the outside through a pipe with
diameter 40 mm, located behind the stove (see page 17) that allows a better combustion with no risk against
safety. When the installation takes place it is necessary to verify the minimum distances of the comburent air
duct taken directly from the outside as (for example) a window or an open door can take off the comburent air
necessary to the stove (see hereunder table). The duct outlet must be covered with a grid strainer against
birds. If extractor fans are used in the same room or place where the appliance is installed this may create
problems.
Pellets Stove
Up to 50
3
/h) Net additional section (cm
6 6 6 6
2
)
140
280
420
Pic. 5
Pic. 6