Combustion Air Supply Requirements - Olsberg Virgo Installation Instructions Manual

Cylindrical stove
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1.0 USER INSTRUCTIONS

1.6 - Combustion Air Supply Requirements

It must be guaranteed that there is enough combustion air available for the stove. For the proper function of
the stove, a necessary combustion air volume current of 15,6 m3/h must be considered.
External combustion air connection.
By an external operating mode, the combustion air can be added from outside through a leak-proof line or
through a supply duct in the chimney. Thus, speak with your district chimney sweep master.
Due to energy saving reasons, the combustion air inlet should be able to be blocked if the stove is not being
operated. This can occur through a shut-off valve in the combustion air line or through the air slide valves on
the stove. If a shut-off valve is used, this must be clearly identified with CLOSED/OPEN.
Through the shutoff, it is avoided that heat is removed from the set-up room through the constant circulation
of cold combustion air and cold combustion air lines may lead to an increased formation of condensation.
NOTE:
The combustion air line may not be closed during operation!
In order to feed the combustion air to the stove externally via a pipe instead of from the room in which it is
installed, it is possible to screw a Ø 125 mm combustion air pipe to the back of the stove. If the combustion
air pipe installed is longer than 3 m, calculations will have to be carried out to verify an adequate supply
of combustion air. At extremely low outdoor temperatures, condensation can occur on the combustion air
duct. For this reason it must be insulated with a suitable insulating material. Observe the rules of the oven
and air heating construction craft. Use the Olsberg combustion air pipes with sealing lip.
NOTE:
Appliances with external combustion air connection are not suitable for concurrent operation with ventilation
systems, without a supplemental safety system.
PAGE 7

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