2- Types Of Installations - hergom CRAFTSBURY Installer Manual

1.2.2- TYPES OF INSTALLATIONS

When you install the chimney and the accessories, especially make sure you respect all the
manufacturer's recommendations for the appropriate distances of the chimney to the
combustible materials, walls and roofs.
There are basically two ways of installing a metal prefabricated chimney:
Inside installation or outside installation
1.2.2.1- Inside installation
When the chimney passes through the inside of
the house through the ceilings and roof.
When possible, choose the inside installation.
An inside installation heats faster and keeps
the heat. In this way it contributes to a better
draught and reduces the creosote formation.
Appropriate firebreak insulating bushings must
be fitted when the chimney passes through the
floors and/or ceilings. The insulation must be at
least 50 mm. thick from the chimney to the
structure.
Protect the walls with wall protectors when the
chimney is not at a safe distance and damages
may be caused. (See Fig.-4)
1.2.2.2- Outdoor installation
Outdoor installation when the chimney passes through the wall from the appliance and after
goes up on the outside of the house.
An outdoor installation does not benefit by heating the outside of the building and normally
lowers the smoke temperatures in relation to the inside installation.
In an outdoor installation the draught is not good and through experience it is demonstrated that
it increases the creosote accumulation.
If your installation is outdoors, use double tubes with an insulating chamber.
D E
D E
C H
C H
C O
C O
THERMAL
INSULATOR
FRAMEWORK
T A I L O F P A S S A G E O F T
T A I L O F P A S S A G E O F T
I M N E Y T U B E S T H R O U G
I M N E Y T U B E S T H R O U
M B U S T I B L E W A L L S A N
M B U S T I B L E W A L L S A N
F R A M E W O R K S
F R A M E W O R K S
CHIMNEY TUBE
Fig. 4
H E
H E
H
G H
D
D
METAL
END