Combustible Materials - Jøtul GF 3 BF 3 Installation And Operation Instructions Manual

Flue System Installation
Note! During the installation of the vent, it is important
to adhere to national and local regulations that apply. The
system must only be installed with a vent system ap-
proved by Jøtul. Only one single stove may be connected
to the vent system.
The vent system must terminate outdoors.
The vent system is a balanced system: 100% of the
combustion air is supplied from outside the house and
all exhaust gas is returned to outside the house. The
vent pipe is a coaxial pipe in which the combustion air
is supplied through the outer pipe and the exhaust gas
returned through the inner pipe.
Minimum Vent System Clearances to

Combustible Materials

Horizontal Vent Pipe:
From the top of the vent pipe
From the side and bottom of the vent pipe
Vertical Vent Pipe:
From all sides of the vent pipe
Position of Vent Pipe:
Under porch, covered entrance, story or balcony, that
have at least two open sides under the floor
To window or door that can be opened
To permanently closed window, recommended to avoid
condensation on the surface
From vent to roof soffit
Flueing Options
The GF3 BF3 is capable of a variety of flueing configurations
using an assortment of balanced flue components and
accessories shown on pages 21-22.
1. Flue arrangement for horizontal termination,
(Fig. 6a).
When horizontal length is 600mm or less, the flue spigot
must be attached to the stove in a vertical position and
a minimum rise of 325mm achieved, a 90 degree elbow
should be fitted and then the horizontal terminal which is
supplied attached with 600mm of flue pipe. The 600mm
terminal section may be cut to up to 300mm if required.
2. Flue arrangement for horizontal termination,
(Fig. 6b).
When the horizontal length is greater than 600mm, the
flue spigot must be attached to the stove in a vertical
position and a minimum rise of 1 metre achieved. A
90° elbow should be fitted and balanced flue sections
may then be attached until a maximum of 5 metres is
achieved. This 5 metres when measured must include the
attached horizontal flue section of 600mm as the final
item connected.
3. Flue arrangement for vertical termination,
(Fig. 6c).
The flue spigot must be attached to the stove in a vertical
position.
The stove only works if the correct quantity of air
is supplied. The draught in the pipe is limited by the
horizontal length of the pipe, and decreases as the length
of the pipe increases. If the vent system changes direction
and more than three 90° pipe bends are inserted, the
draught will be reduced. Each additional pipe bend must
therefore be allocated the same draught restriction as a
300mm horizontal length of pipe.
A maximum of 5 bends (both vertical and horizontal)
50 mm
may be used in one flue system. This means that with a
25 mm
total of 5 bends used, the total horizontal length of the
flue system must be not more than 5.0m.
25 mm
4. Flue arrangement for horizontal termination
without vertical rise, (Fig. 6d).
300 mm
A direct horizontal connection may only be made
300 mm
using kit 82671. The terminal part no. 82662 is supplied
with an attached length of 400mm, 100/170 pipe. This is
300 mm
the maximum flue length for this arrangement and can-
not be extended. If a horizontal run greater than 400mm
300 mm
is required then flueing arrangement 1 should be followed
using an initial vertical rise and flue components.
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