Version 1
–
22
nd
January 2015
Fire Cement
Some types of fire cement are caustic and should not be allowed to come into contact with the skin. In case
of contact wash immediately with plenty of water.
Asbestos
This boiler contains no asbestos. If there is a possibility of disturbing any asbestos in the course of
installation then please seek specialist guidance and use appropriate protective equipment.
Metal Parts
When installing or servicing this boiler care should be taken to avoid the possibility of personal injury.
BOILER PERFORMANCE
Refer to the main instruction manual for details of the boiler
’s performance.
PREPARATORY WORK AND SAFETY CHECKS
IMPORTANT WARNING
This boiler 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 boiler as this can cause the boiler to emit
fumes into the room.
Chimney
In order for the boiler to perform satisfactorily the chimney height must be sufficient to ensure an adequate
draught of approximately 15 Pa so as to clear the products of combustion and prevent smoke problems into
the room.
NOTE: A chimney height of not less than 4.5 metres measured vertically from the outlet of the boiler to the
top of the chimney should be satisfactory. Alternatively the calculation procedure given in EN 13384-1 may
be used as the basis for deciding whether a particular chimney design will provide sufficient draught.
The outlet from the chimney should be above the roof of the building in accordance with the provisions of
Building Regulations Approved Document J.
Because the boiler runs at high efficiencies, the temperature of the flue gases is at times lower than
conventional solid fuel appliances. Although it is not classed as a condensing appliance, the low flue gas
temperature results in condensation occurring within the flue. Any chimney flue system must therefore be
able to withstand the effects of condensate and operate under wet conditions (designation letter W). In
addition it should be soot fire resistant and able to withstand the corrosive effects of flue products generated
by solid fuels (designation G and 3 respectively). If installation is into an existing masonry chimney then it will
require re-lining with a liner meeting the specification described above. Existing concrete or clay lined
chimneys are not suitable for this boiler and must be lined as described above. All installations must be in
accordance with Building Regulations Approved Document J.
Any existing chimney must be clear of obstruction and have been swept clean immediately before installation
of the lining system. Where the chimney is believed to have previously served an open fire installation it is
possible that the higher flue gas temperature from a closed appliance may loosen deposits that were
previously firmly adhered, with the consequent risk of flue blockage. It is therefore recommended that the
chimney be swept a second time within a month of regular use after installation.