Building Into A New Hearth - Dovre 2020 Installation Et Mode D'emploi

3. Close the base of the flue with incombustible
material.
4. Make a 150 cm diameter opening in the base for
the extraction duct.
5. Centre the opening in the base on the connection
collar on the stove.
6. Put the extraction duct in the opening. Make sure
that the duct can be pulled down so that it fits into
the connection collar. For example, use a variable-
length duct.
If you are using a RFS-flexible duct: screw the
duct onto the connector supplied, put the con-
nector into the connection collar and secure the
connector by bending the two lips outwards.
The figure below provides an example of the placing of
a fireplace insert in a hearth which is done using the
instructions given above.
A Existing hearth
B Ventilation space (minimum 15 mm)
C Existing flue
D Fireproof material or connector
E Opening to prevent pressure build-up
Subject to change because of technical improvements

Building into a new hearth

The fireplace insert is installed in two stages:
Placing and connecting the fireplace
Building up the hearth around the fireplace.
Placing and connecting the fire-
place insert
1. Place the appliance at the right height and level it.
2. If you are going to put an external casing around
the appliance, you should fit the clamping plates
supplied to the sides of the appliance without fully
tightening the screws. This is because the outside
casing fits between the appliance and the clamp-
ing plates; see next figure.
3. Check that there is at least 15 mm of free con-
vection space between the existing walls - which
must have the necessary insulation (see chapter
"Installation Conditions") - and the back of the
appliance.
4. The masonry should not rest on the fireplace. If
required, use a support such as a steel beam.
Leave a clearance of at least 3 mm between the
support and the appliance.
4. Connect the appliance to the flue hermetically.
5. Check the draught in the flue and the seal of the
connection on the flue gas duct by making a small,
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