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ELLIPSE
22
7196901 Rev.09 – EN
7. ADMITTED/NOT ADMITTED FUEL
The fuels admitted are wood logs. One must use only logs of dry wood (water content max. 20 %). The
size of wood logs should be 30 cm’s long and 30 cm’s max in circumference.
The wood used as fuel must have a moisture contents lower than 20 %, which is obtained after at least 1
year drying (tender wood) or 2 years (hard wood) and must be stored in a dry and ventilated place (for ex.
Under a shed). The wet wood makes ignition more difficult because it is necessary a greater quantity of
energy to evaporate the existing water. The humid contents has the disadvantage that, with the
temperature lowering, the water condensates first in the hearth and then in the chimney. The unseasoned
Picture 7
Picture 8
CHIMNEY CAPS - DISTANCES AND POSITIONING
UNI 10683/98
Inclination of the roof
Distance between the roof
ridge and the stack
Minimum height of the stack (measured
from the outlet)
α
αα
α
A
(m)
H
(m)
15°
< 1,85 m 0,50 m above the roof ridge
> 1,85 m 1,00 m from the roof
30°
< 1,50 m 0,50 m above the roof ridge
> 1,50 m 1,30 m from the roof
45°
< 1,30 m 0,50 m above the roof ridge
> 1,30 m 2,00 m from the roof
60°
< 1,20 m 0,50 m above the roof ridge
> 1,20 m 2,60 m from the roof
(1)
The chimney cap must not show hindrances within 10 m
from walls, pitches and trees. Otherwise raise it of at least 1 m
over the hindrance.
The chimney cap must exceed the ridge of the roof of at least
1 m.
2 m 10 m
1
m
> _
A >A
0,5 m
H min.
α
(2)roof
(1)ridge axis