Sirius MF&WD Version 1 November 2013
Once the installation is complete, the installer must advise the householder on the correct use of the stove and warn
them to use only the recommended fuels listed in this document. The installer must also advise the householder on the
actions to be taken should smoke or fumes be emitted from the stove.
Your Sirius stove must not share a chimney with any other appliance
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.
Check the chimney is in good condition, dry, free from cracks, leaks and obstructions. The diameter of the flue should
not be less than 150mm and not more that 230mm. If any of these requirements are not met, the chimney should be
lined by a suitable method.
In the case of the
Sirius 490
stoves burning as clean burn appliances (clean burn kit fitted), a 125mm flue liner may be
used in accordance with the Building Regulations. All other stoves must have a minimum 150mm diameter liner. The
chimney and connecting flue pipe should not narrow to less than the size of the outlet socket (collar) of the stove at any
point.
The chimney height and the position of the chimney terminal must conform to Building Regulations and the latest
edition of BS EN 15287-1:2007, Design, Installation and Commissioning of Chimneys should be followed.
A flue draught of minimum 12 Pascals is required for satisfactory appliance performance. The flue draught should be
checked under fire at high output and if it exceeds 25Pa, a draught stabiliser may be required so that the rate of burning
can be controlled, and to prevent possible over-firing.
If you have any doubts about the suitability of your chimney, consult your local dealer/stockist. He will also be able to
provide advice about the possible need for a specialist cowl.
The chimney must be swept before connection to the stove and swept every twelve months thereafter. It is
recommended that your chimney is swept every six months and again within one month of regular use after
installation.
An existing fireplace opening can be modified to accommodate the stove. The following pages identify some typical
installation scenarios and provides the necessary specific installation information for your new stove. Always consult
your stove supplier for a detailed survey of your particular circumstances.
To make it easier to handle the stove on installation, remove the baffle plates, bricks and door. Place in a secure place
to avoid damage. Refit after installation.
Upon completion of installation, the appliance should be checked under fire for soundness of joints and seals, and also
that all smoke and fumes are taken from the appliance, up the chimney and emitted safely.
Typical Installation for Inglenook Fireplaces – top flue
Inglenook fireplaces can have very large bore chimneys. Check with your installer – you are likely to require a stainless
steel flexible liner for solid fuel if your chimney is larger than 230mm x 230mm. A closure plate with access for cleaning
may also be required together with a short length of flue pipe of the same diameter as the stove flue collar.
