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EN 13
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The chimney itself is used for the air supply. The flexible piping
serves as the flue. It is therefore essential that the chimney is sealed
at both the top and bottom.
The flat plate and chimney connector set are used for this (see
Installing the vent in an existing chimney duct).
7.4 PREPARING TO INSTALL THE MULTI-VENT SYSTEM
Select one of the Multi-Vent connection options. See the Chapter on
Multi-Vent Connection Options.
Take the following items into consideration:
Assemble the concentric pipe starting at the hearth.
If architectural conditions dictate that you first build in part of the
pipe system, be sure to use the correct mounting method.
The hearth starts with a contra-section (female); the first section of
pipe must have the male end inserted into this female end, etc.
When properly installed, the blue rubber ring is visible inside the
pipe when viewed from above.
If you wish to install (part of ) the vent system before installing the
hearth, it is handy to use a special fitting piece for connecting the
vent pipe to the Multi-Vent Built-in Gas Hearth (see the order form).
Expansion and contraction of the concentric pipes can cause them to
become loose. We recommend that after installing the clips, you
secure the clips on inaccessible sections of the concentric pipes with
a self-tapping screw.
Maintain a distance of at least 5 cm between the concentric pipes
and the wall or ceiling. The outside of the pipe can reach a
temperature of 140 °C. Provide sufficient insulation in wall or ceiling
openings to accommodate such temperatures.
EN
7.3.4 Roof vent with 2 45-degree bends
One meter of vertical vent pipe is always required first.
Then a passage with two 45-degree bends is permitted up
to the maximum length of 12 meters. The roof vent unit is
not included in this calculation.
Note!
All bends are to be included when calculating the
horizontal length.
7.3.5 Roof vent with horizontal bend
First make a drawing. Calculate the horizontal pipe length
and the total length of the supply pipe needed. One meter
of vertical vent pipe is always required first.
Note!
All bends are added to the horizontal length.
7.3.6 Venting through an existing chimney
For intake/exhaust through an existing chimney, the
following conditions must be satisfied.
1. The maximum total length is 12 meters.
2. The minimum opening required is 15 x 15 cm.
3. The flue must be clean and airtight.
4. A bend is permitted, but you must add 2 meters to the
horizontal length for two 45-degree bends.
5. Use the correct accessories: roof vent unit, flat plate,
chimney flashing set and mantle iron, if required
(see the order form).
min.
1 m
min.
1 m
min.
1 m
