Chimney Cowl; Outside Air Intake - BOREAL E4000 Serie Instrucciones De Instalación, Uso Y Mantenimiento

EN Decompression chamber CAMARA DE DESCOMPRESION
Rock wool insulation AISLAMIENTO LANA DE ROCA
Protect the inner
PROTEGER LAS PARTES
walls of the wook
INTERNAS DE LA MADERA
4.3

CHIMNEY COWL

The chimney draft also depends on the chimney cowl.
The chimney cowl should assure the smoke discharge even during windy days, having into account that it must exceed the top of the roof.
(1) Industrial chimney of
prefabricated elements
that allow a good smoke
extraction.
The chimney cowl must comply with the following requirements:
• It must have the same interior section of the stove.
• It must have an usable exit section that is two times the one of the interior of the chimney.
• It must be constructed so that the rain, snow or any other objet do not enter inside.
• It must be easily accessible in order to do servicing and cleaning tasks.
It the chimney cowl is metallic, due to its own design adapted to the diameter of the pipe, the smoke discharge is assured. There are different models of
metallic chimney cowl, fixed, anti-return, and rotary or extractor.

5. OUTSIDE AIR INTAKE

For the proper operation of the stove, it is essential that there is air enough for the combustion and re/oxygenation of the environment where it is
installed. In the case of houses built under the requirements of "energy efficiency" with a great degree of air tightness, it is possible that the air intake
is not guaranteed *the fitter must assure compliance with the Technical Building Code. This means that the air must be able to move for the combustion
through some openings connected to the exterior, even when doors and windows are closed. Moreover, it must comply with the following requirements:
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Metallic channel
CONDUCTO METALICO
MAXIMA INCLINACION 45º
maximum inclination 45º
50 cm
Grate
REJILLA
Rock wool insulation
AISLAMIENTO LANA DE ROCA
Cold air entry
ENTRADA AIRE FRIO
Rock wool insulation
AISLAMIENTO LANA DE ROCA
5 cm
Space between the pipe and
ESPACIO ENTRE EN TUBO Y
EL CONDUCTO SELLADO
the sealed channel
Grate
REJILLA
Exit grate of the convection air
REJILLA SALIDA AIRE CONVECCION
Space between the cladding and the insert
ESPACIO ENTRE EL REVESTIMENTO Y EL INSERT
Cold air entry
Cold air entry
ENTRADA AIRE FRIO
Wall PARED
(2) Traditional chimney. The proper
exit section must be, at least, two
times the interior
section of the chimney, the best is
2.5 times
5 mm
ENTRADA AIRE FRIO
3) Chimney with interior cone
smoke deflector