WarmFlow B-Series B70, Owner'S Manual

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Page 48
5.2 Conventional Flues
The flue system should be designed
in accordance with local bye-laws
and the Building Regulations. Draught
stabilisers are not recommended for oil
fired boilers. Sharp bends or horizontal
runs should be avoided and the flue
should terminate 2 feet (600mm) above
the ridge of the dwelling. Terminals
which restrict the discharge or allow
ingress of water should be avoided.
When connecting to an existing
masonry chimney a flexible stainless
steel liner of the correct diameter must
be used. The annular space must be
filled with insulation and sealed top
and bottom. The starter piece should
be sealed into the conventional flue
adaptor using a high temperature
silicone sealant or fire cement.
5.3 Low Level Balanced Flue Terminal Positions
Attention should be given to the position of the flue discharge; we recommend the
following guidelines be adopted.
. The flue should not discharge beneath opening windows or near other accesses to
the building.
2. The flue should not discharge near internal/external corners of the building where
turbulent wind conditions could occur.
3. A terminal guard must be fitted at all times.
4. The terminal should not discharge over property boundaries.
5. Discharge into narrow passageways should be avoided.
6. The location of the terminal and routing of the flue should be determined by the
installer after consultation with the householder.
7. In positioning the flue the wind direction should be considered.
Installation in exposed positions is not recommended.
Cowls and pots that
may restrict the flue
should not be used
TERRACOTA POT
Considered good practice
but is not a guarantee of
overcoming down drafts
LINER
Suitable liner same
diameter as Boiler
Flue connection
Starter piece
stainless steel same
diameter as flue
SORT
DOOR
FLUE PIPE BENDS
DO NOT USE 90°
Typical Conventional Flue with Brick Chimney
TEST POINT
35°
2 metr
es max