How Chimneys Work - Hergom COMPACTO C-10 Instrucciones Para Instalación, Uso Y Mantenimiento

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2.2
CHIM NEYS.
Th e o p e rati o n of t h e C o m p a ct C -1 0 d e p e n d s o n :
a ) Th e chi m n e y.
b ) Th e chi m n e y o p e ra ti n g m e t h o d.
c) Th e q u ali t y of t h e f u el u se d .
Foll o w i n g ye a rs o f u se , yo u m a y ch a n g e t h e t yp e o f
f u el b ut t h e chi m n e y i s n ot e a sil y m o d ifi e d o r m o ve d o n ce
it h a s b e e n i n st all e d i n a sp e cifi c p o siti o n . Th e f oll o wi n g
inf o rm a ti o n will h el p yo u d e ci d e w h e t h e r t h e e xi sti n g
chi m n e y m a y b e u se d o r w h e t h e r a n e w ch i m n e y sh o u l d
b e b uilt.

2.2.1 . How Chimneys Work

A b a si c u n d e rst a n di n g of h o w ch i m n e ys w o rk w ill e n a bl e
yo u t o o b t ai n i m p ro ve d p e rf o rm a n ce o f yo u r C o m p a ct C -
1 0 , w h e re b y t h ei r m a i n f u n cti o n s a re.
c) E va cu a t e sm o ke a n d g a se s f ro m t h e h e a rt h i n a
sa f e w a y.
d ) P ro vi d e su f fi ci e n t fl u e i n t h e h e a rt h so t h at t h e fi re
st a ys li t.
What is the flue?
The tendency of hot air to rise creates a flue.
When the compact C-10 is lit, the hot air rises up
the chimney and goes outside. The chimney pipe
gets hot and maintains the flue. The flue does not
work properly until the stove and the chimney are
hot.
The location, size and height of the chimney affect
the flue.
The following must be considered:
- Chimneys located within the house remain hot;
therefore the flue is greater.
- The manufacturer's recommended size of the
chimney maintains a good flue.
- The height of the chimney affects the flue:
More height, Better flue.
The chimney should stick out at least one metre
from the highest part of the roof.
There are other factors which affect the flue:
Trees and/or tall buildings close to the dwelling.
- The speed of the wind. In general, strong,
continuous winds increase the flue; but gusty winds
reduce the flue.
- External temperature. The colder it is outside, the
better the flue.
- Barometric Pressure. On rainy, wet or stormy
days, the flue is generally weak.
- Briskness of the fire. The hotter the fire is, the
stronger the flue.
Cracks in the chimney, poorly sealed or dirty
doors, air intakes due to the joining of pipes, other
appliances connected to the chimney, etc. may
produce inappropriate flues.
2.2.2 . Build-up of Cre osote and its Clea ning
Sl o w b u rni n g w o o d p ro d u ce s t a r a n d ot h e r o rg a ni c
va p o u rs, w hi ch co m b i n e w it h a t m o sp h e re m o i st u re t o f o rm
cre o so t e . Th e se cre o so t e va p o u rs m a y co n d e n se i f t h e
chi m n e y w a ll s a re col d. E xt re m e l y h ot fi re s m a y o ccu r if t h e
cre o so t e i g ni t e s. A n y b uil d -u p o f cre o so t e m u st b e
eli mi n a t e d. It i s e xt re m el y dif fi cul t t o p re di ct e xa ct l y w h e n
t h e chi m n e y sh o u l d b e cl e a n e d. Vi su al i n sp e cti o n i s t h e
sa f e st w a y o f ch e cki n g w h e t h e r yo u r st o ve i s cre o so t e f re e .
Fo r t hi s re a so n , w e re co m m e n d t h at t h e i n st all a ti o n s a re
e a sil y a cce ssi bl e f o r i n sp e cti o n .
2.2.3 . Options .
If yo u a re g oi n g t o b uil d a ch i m n e y f o r t h e C o m p a ct
C -1 0 , t h e re a re t w o al t e rn ati ve s:
e )
M a so n ry C h i m n e y.
f)
M e t al C h i m n e y
St u di e s sh o w t h a t t h e re i s n o t m u ch d if f e re n ce i n
t erm s o f fl u e p e rf o rm a n ce b e t w e e n m e t al a n d m a so n r y
chi m n e y s. I t i s u p t o yo u t o ch o o se o n e o r t h e ot h e r,
d e p e n di n g o n yo u r cri t e ri a.
Wh e n e ve r p o ssi bl e, l o ca t e yo u r ch i m n e y i n si d e t h e
h o u se , h e n ce o b t ai ni n g a b e tt e r fl u e , l e ss cre o so t e b uil d -u p
a n d a l o n g e r d u ra ti o n.
TH E A D V A N TA GE S O F M A S ON R Y C H I M N E Y S
A R E :
e ) Th e m a s s o f b ri cks a n d fl o o r til e s re d u ce t h e
co oli n g of t h e va p o u rs i n t h e chi m n e y.
f) Th e h e at a ccu m u l a ti n g ch a ra ct e ri sti c of b ri ck s
all o w s t h e h o u se t o b e ke p t w a rm f o r a l o n g e r p e ri o d o n ce
t h e fire h a s g o n e o u t.
g ) It ca n b e b uilt t o sui t i n di vi d u al t a st e.
h ) If i t i s w e ll b uil t, i t m a y b e m o re re si st a n t t o fi re
t h a n m e t al ch i m n e ys.
M a so n ry ch i m n e ys sh o u l d b e w ell li n e d t o a vo i d t h e
co oli n g o f va p o u rs. Th e y sh o ul d b e b uilt wi t h m at e ri al s t h a t
wi t h st a n d hi g h t e m p e ra t u re s a n d co rro si o n . Th e y m a y b e
ro u n d, sq u a re , et c. ; w h a t i s i m p o rt a n t i s t h ei r i n t e rn al
se cti o n .
Th e
m e a su re m e n t s
TE C H N I C A L
I N FO R M A TI O N
re sp e ct e d f o r C o m p a ct C -1 0 m a so n r y ch i m n e ys.
TH E A D V A N TA GE S O F M E TA L C H I M N E Y S A R E :
e ) E a sy i n st all a ti o n.
f) Sli g ht ch a n g e s i n t h e di re cti o n t o t h e ch i m n e y a re
p o ssi bl e, w h i ch p ro vi d e s g re at e r fl e xi bilit y i n t h e ch oi ce o f
w h e re t o i n st all t h e fi re pl a ce .
i n di ca t e d
i n
se cti o n
(P a g e
1 2 )
sh o u l d
9
b e

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