Operating Instructions and Installation Instructions
18
The chimney flue must always end up in outlet area 1 (see the drawing and the table below)
Roof slope x larger than 23° Roof slope x smaller than23°
Ventilation :
For satisfactory appliance operation with a natural draught, check that sufficient air for
combustion isavailable in the room.
This appliance has a nominal output not exceeding 5kW (and therefore does not normally
require any additional permanent ventilation) but spillage is detected when commissioning the
fire, there may be insufficient natural ventilation and additional ventilation may be required.
Height of chimney on the roof at a horizontal distance A measured from the ridge
Roof with
slope X
Horizontal distance A from the ridge, in metres
On the
ridge
0.5 m
0.75 m
1 m
1.25 m
1.5 m
2 m
3 m
4 m
25
o
0.5 0.75 0.85 1.0 1.1 1.2 1.6 2.5 3.3
30
o
0.5 0.85 1.2 1.6 2.0 2.4 3.2 4.9 6.5
35
o
0.5 1.0 1.8 2.4 3.0 3.6 4.8 7.3 10
40
o
0.5 1.2 2.4 3.2 4.0 4.8 6.4 10 13
45
o
0.5 1.5 3.0 4.0 5.0 6.0 8.0 12 16










