Hergom HERITAGE Libro De Instrucciones Para Instalación, Mantenimiento Y Uso página 36

1.2.2.1 - Interior installation
When the chimney passes inside the dwelling and through ceilings and roof.
Choose the interior installation wherever possible. An interior installation heats faster and
holds the heat. In this way it promotes the best draught and reduces the formation of creosote.
Fire prevention wall fixtures must be installed when the chimney passes through floors and/or
ceilings. The insulation will be at least 50 mm thick from the chimney to the structure.
Protect the walls with protectors when the chimney is not at a safety distance and might cause
damage. (See Fig. - 4)
1.2.2.2 - Exterior installation
Exterior installation when the chimney passes through the wall from the appliance and
then rises on the outside of the dwelling.
An exterior installation does not benefit by heating the outside of the building and normally
reduces the temperature of the smoke in comparison with interior installations.
In exterior installations, the draught is not good and in experiments they have been shown to
increase the accumulation of creosote.
If yours is an exterior installation, use double pipes with an insulating chamber.
CLOSE-UP OF THE PASSING
OF CHIMNEY PIPES THROUGH
WALLS AND COMBUSTIBLE STRUCTURES
HEAT
INSULATION
STRUCTURE
36
METAL
EDGING
Fig.-4