Installation
Chimney
The chimney height and the position of the chimney terminal should conform to Building
Regulations.
Check that the chimney is in good condition, dry, free from cracks and obstructions. The
diameter of the flue should not be less than 125mm and not more than 200mm. If any of these
requirements are not met, the chimney should be lined by a suitable method.
The chimney must be swept before connection to the stove.
Where the chimney is believed to have previously served an open fire installation, it is possible
that the higher flue gas temperature from the stove 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.
If you have any doubts about the suitability of your chimney, consult your local dealer/stockist.
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
4543 can be used. These chimneys must be fitted in accordance with the manufacturer’s
instructions and Building Regulations.
Flue Draught
A flue draught of minimum 1.2mm to a maximum 2.5mm water gauge is required for
satisfactory appliance performance. The flue draught should be checked under fire at high
output. If it exceeds the recommended maximum, a draught stabiliser must be fitted so that the
rate of burning can be controlled and to prevent over firing. If the reading is less than the
recommended minimum than the performance of the appliance will be compromised.
Connection to the Chimney
An existing fireplace opening can be bricked up or sealed with a register plate. A short length of
flue pipe of a minimum 125mm internal diameter may then be used to connect the stove to the
chimney. This flue pipe should be of 316 grade stainless steel or vitreous enamelled, nominal
thickness 1.2mm. Ensure that the pipe end is no closer than 76mm to the side or rear chimney
walls.
Ideally, the old fireplace should be filled in so that there is a smooth streamlined entry into the
flue way.
The length of any horizontal run of flue pipe must not exceed 125mm.
It is essential that all connections between the stove and chimney-flue are sealed and made
airtight.
Both the chimney and flue pipe must be accessible for cleaning and if ANY parts of the chimney
cannot be reached through the stove (with baffle removed), a soot door must be fitted in a
suitable position to enable this to be done.
Air Supply
The room or space containing this appliance should not need a permanent, unobstructed air
opening.
If a draught stabiliser is fitted, the air opening should be at least 1500mm
2
. Due consideration
should be given to air requirements for any other appliances in the same room or space.
