Westfire WF23 Notice D'installation Et D'utilisation page 10

UK
PREPARATORY WORK AND SAFETY CHECKS – IMPORTANT WARNING
This stove must not be installed into a chimney that serves any other heating appliance.
There must not be an extractor fan fitted in the same room as the stove as this can cause the stove to emit fumes
into the room.
Chimney – Chimney Connection – Flue Diameter 125 mm
IMPORTANT: Once the stove is unpacked and checked it is necessary to remove the central bar from the flue collar
of the stove before installation. To remove unbolt collar remove bar and replace collar.
When installing your stove with a 125 mm /5" flue please ensure to fill drain hole at rear of cast collar with fire
cement so to prevent any potential leakage of flue gases. Use a proprietary brand of heat resistant fire cement and
ensure that enough cement is used to completely fill the area.
In order for the stove to perform satisfactorily the chimney height must be sufficient to ensure an adequate
draught so as to clear the products of combustion and prevent smoke problems into the room.
Tested Draft
Max Draft
Flue gas temperature
Flue gas flow
NOTE: The outlet from the chimney should be above the roof of the building in accordance with the provisions of
Building Regulations Approved Document J. If installation is into an existing chimney, then it must be sound and
have no cracks or other faults which might allow fumes into the house. Older properties, especially, may have
chimney faults or the cross section may be too large. Westfire Aps recommend the use of a solid fuel flue lining
system for all installation into existing chimneys. All chimney systems must be used in accordance with Building
Regulations Approved Document J.
If there is no existing chimney then either a prefabricated block chimney in accordance with Building Regulations
Approved Document J or a twin walled insulated stainless steel flue to BS 1856-1. These chimneys must be fitted
in accordance with the manufacturer's instructions and Building Regulations. A single wall metal flue pipe is
suitable for connecting the stove to the chimney but is not suitable for using for the complete chimney. The con-
necting flue pipe must have a minimum diameter of 125 mm and its dimension should be not less than the size
of the outlet socket of the stove. Registered smoke exempt models burning wood only can be installed on flue of
125mm throughout. Any bend in the chimney or connecting flue pipe should not exceed 45°. 90-degree bends
should not be used other than within 150 mm of stove rear flue outlet.
A chimney height of not less than 4.5 metres measured vertically from the outlet of the stove to the top of the
chimney should be satisfactory. Alternatively, the calculation procedure given in BS5854:1980 may be used as the
basis for deciding whether a particular chimney design will provide sufficient draught.
If it is found that there is excessive draught in the chimney, then either an adjustable flue damper or alternately
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 flue pipe. Adequate provision e.g. easily accessible soot door or doors must be provided for
sweeping the chimney and connecting flue pipe.
Your appliance needs to be maintained routinely, the throat plate/baffle should be cleaned regularly (monthly).
The flue pipe can be cleaned using a flexible brush. Only Use a dry cloth on external surfaces. Over time the glass
may become dirty, clean with a damp cloth and polish off with damp cloth. If the stove has not been used for
some time the flue should be checked for blockages before use. Do not modify the appliance; only use spares
authorised by the manufacturer.
WESTFIRE · WF23
10
WF23/UNIQ23
12 pa
25 pa
281°C
5.2 g/sec