Westfire WF37 Installations- Und Gebrauchsanweisung Seite 8

UK
If there is no existing chimney then either a prefabricated block chimney in accordance with Building Regulations
Approved Document Jor a twin walled insulated stainless steel flue to BS 4543 can be used. These chimneys must
be fitted in accordance with the manufacturer's instructions and Building Regulations.
A single wall metal fluepipe is suitable for connecting the stove to the chimney but is not suitable for using for the
complete chimney. The chimney and connecting fluepipe must have a minimum diameter of 150 mm and its dimen-
sion should be not less than the size of the outlet socket of the stove.
Any bend in the chimney or connecting fluepipe should not exceed 45°. 90° bends should not be used.
If it is found that there is excessive draught in the chimney then either an adjustable flue damper or alternatively a
draught stabiliser should be fitted. The adjustable flue damper should not close off the flue entirely but should in its
closed position leave a minimum continuous opening free area of at least 20 % of the total cross sectional area of
the flue or fluepipe.
Adequate provision e.g. easily accessible soot door or doors must be provided for sweeping the chimney and
connecting flue pipe.
Distance to Combustible materials
Combustible materials should not be located where the heat dissipating through the walls of fireplaces or flues could
ignite it. Therefore when installing the stove in the presence of combustible materials due account must be taken of
the guidance on the separation of combustible material given in Building Regulations Approved Document Jand also
in these stove instructions.
Distance to combustible materials rear
Distance to combustible materials side
Distances to flammable materials/furnitures
Hearth
The hearth should be able to accommodate the weight of the stove and its chimney if the chimney is not
independently supported.
The Westfire UNIQ 37 wood stove has been tested and is suitable to be installed on a 12 mm non combustible plate
such as Westfire 12mm glass plates or 20 mm slate plates. Installation of all hearths should comply in size and con-
struction so that it is in accordance with the provisions of the current Building Regulations Approved Document J.
The clearance distances to combustible material beneath, surrounding or upon the hearth and walls adjacent to the
hearth should comply with the guidance on the separation of combustible material given in Building Regulations
Approved Document Jand also in these stove instructions.
If the stove is to be installed on a wooden floor, it must be covered with a non-combustible material at least 12 mm
thick, in accordance with Building Regulations Approved Document J, to a distance of 30 cm in front of the stove and
15 cm to each side measuring from the door of the combustion chamber.
Combustion air supply
In order for the stove to perform efficiently and safely there should be an adequate air supply into the room in
which the stove is installed to provide combustion air. This is particularly necessary if the room is double-glazed or a
flue draught stabiliser is operating in the same room as the appliance. The provision of air supply to the stove must
be in accordance with current Building Regulations Approved Document J. An opening window is not appropriate
for this purpose. Air inlets must be positioned in such a way that they cannot be blocked. An air inlet may be a vent
(the vent must be open and the capacity of the vent sufficient when the stove is lit) or a fresh air system linked to
the stove.
There are no European rules regarding the minimum distance to non-flammable walls, Westfire recommend leaving
a gap of at least 10 cm behind and to sides of stove.
WESTFIRE · WF37
UNIQ 37
100 mm
600 mm
825 mm
8
UNIQ 37 Pedestal
100 mm
600 mm
825 mm