INSTALLATION INSTRUCTIONS
Page 10
Aarrow Sherborne GSL CF
FLUE SYSTEM
The stove must be connected to a suitable
and efficient flue that provides a good up
draught to safely take the products of
combustion (fumes) from the stove outlet to
the outside air. To ensure good up draught it
is important that the flue gases are kept
warm and that the flue size suits the stove.
The termination of the outlet at the top of the
flue also needs to comply with Building
Regulations. The minimum effective height of
the chimney must be at least 3 metres and
when warm the flue draught should be
between 0.05 and 0.60mbar (0.5 to 6mm
water gauge)
The stove requires a minimum flue size of
125mm (5”). The stove can be fitted to a
sound conventional solid fuel burning
chimney system (class1) provided it is swept
first.
If the chimney is not sound or the chimney
has an internal flue size greater than 225mm
(9”) diameter or 200x200 square, a 125mm
(5”) diameter stainless steel flue liner
complying with BS715 should be installed.
If a new chimney is being provided it should
fully comply with the relevant Building
Regulation Requirements and BS5440:
Part1. Suitable types of chimney include the
following:-
Masonry chimney built with clay or
concrete liners, or chimney block system
meeting Building Regulations
Precast concrete gas flue block complying
with BS1289 Part 1
Factory made metal chimney complying with
BS 715 (often called “Twin Wall Class 2
chimney”) or Factory made metal insulated
chimney complying with BS4543:Part2 (often
called “Class 1 prefabricated metal chimney”)
To ensure the flue gases are kept warm an
insulated chimney system should be used if
the chimney is positioned outside the
building.
Insulated chimney system should be used if the
chimney is positioned outside the building.
The flue must terminate with a suitable chimney
pot or cowl and the chimney or flue shall be swept
prior to installation unless the chimney is clean
and unobstructed.
The flue and chimney installation must be
carefully checked by a competent person before
fitting the stove to ensure it is suitable and will
work safely. The flue must also pass a flue flow
test (smoke test) to BS5440: Part1.
For advice on flues and chimneys contact:-
NACE (National Association of Chimney
Engineers):
Telephone.
01526 322 555
Email.
www.nace.org.uk
Or
NACS (National Association of Chimney
Sweeps):
Telephone.
01785 811 732
Email.
www.chimneyworks.co.uk
