DEFRA Stove Installation and User Guide
If the chimney is old (i.e: built of brick or stone without a liner) or being
opened up for reuse additional checks and smoke testing as described in
Appendix E of the Approved Document J 2010 Edition should also be carried
out to ensure the flue and chimney are in good operating condition.
Check the existing flue is in good condition with suitable access for
collection and removal of debris.
It is also important that suitable flue pipe (recommended at least
600mm in length) complying with the Building Regulations is used to
connect the stove to the flue in the chimney. Suitable access should be
provided into the flue for regular inspection and sweeping of the flue ways.
The installer should comply with Building Regulations requirements in
respect of providing a Notice Plate giving details on the chimney, flue lining,
hearth and fireplace installation.
Chimneys should be as straight as possible. Horizontal runs should be
avoided except where the rear outlet of the appliance is used, in which case
the horizontal section should not exceed 150mm in length. If necessary
a combination of
45
◦
and
90
◦
bends can be used as long as the sum of
their angles is not greater then
180
◦
in total. i.e four
45
◦
bends, or two
45
◦
and a
90
◦
bend.
If the stove appears to be working hard but produces very little output
to the room it is likely that excess draw is present in the chimney, and that
heat is being sucked out of the appliance and up the chimney. If this is
the case we recommend the fitting of a draught stabiliser in preference to
a flue damper, in the interest of safety and efficiency.
4
Commissioning the stove
Before handing over the installation to the customer it is a requirement
under Document J (of the Building Regulations for England and Wales) that
the appliance is lit and the functioning of the chimney system is checked
for satisfactory operation.
• Be sure that the chimney is operating and all smoke and fumes are
vented to the atmosphere through the chimney terminal.
BK575 Rev02
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