23
step 11: first length of flue & CaVity lid
Place the first single skin length of flue (with no crimp ends)
around the outside of the spigot. you may also use a heat
resistance sealant(i.e.firecork) to seal any air gaps. Before
installing the remaining lengths of flue please go to the next
step.
step 10: layla 3 trim with lift door
(if not reQuired go to
step 11)
**important**
Trim must be fitted onto the firebox PRIOR to installing the
front of the masonry enclosure.
1.
Put the trim on the front of the firebox
2.
On the side of the façade of the firebox drill two holes at
4.2mm
3. the holes must match with the slotted holes on the trim
4. put the trim into place
5. fix the trim with the screws provided (screws m5 +
washers)
layla 3 trim with no lift door
If the trim is to be assembled to fit onto a firebox not equipped
with a lift up door, you will need to weld the bracket (width
5 mm each). the brackets (2x5 mm) are necessary to
compensate the initial width of the trim.
15°
step 12: flue installation
Where the flue passes through the lid of the enclosure the flue
shall be single skin, the triple skin flue must sit on top of lid of
the enclosure. the lower end of the triple skin casing shall be
close fitting against the lid and must be ventilated.
the triple skin flue will then be continued into the roof cav-
ity and above the roof line, as per australian & new Zealand
Standard aS/nZ 2918:2001. there must be a 25mm clearance
around the outer triple skin flue, the flue must extend a mini-
mum 1m above the roof line and have a 3m clearance all the
way around.
**iMPortant**
the flue should not include more than two 45
°
degree bends.
the angle of these bends cannot exceed more than 45
°
and can
have no more than one length of 900mm flue between them.
4.2
HeBel inStallation
300mm
below
Ceiling
CaVity lid
to be fully
sealed to
all edges.
step 10: CaVity lid
**important**
side Vents
it is highly recommended the cavity lid be installed flat to
ensure sufficient air flow around the appliance.
front Vents
it is highly recommended the cavity lid be installed on an angle
of 15° facing the front of the fireplace to ensure sufficient air
flow around the appliance.
the cavity lid must be installed 300mm below the ceiling and
is comprised of the following; minimum 0.5mm thick steel
plate for support, followed by a 12mm thick heat resistant
compressed cement sheet, with 2 x 25mm rockwool sheets
on top and a minimum 0.5mm thick steel plate to be placed on
top. a hole is to be cut in the centre of the lid in order for the
single skin flue to penetrate through tightly. you may also use
a heat resistance sealant(i.e. firecork) to seal the any air gaps.
please ensure the cavity lid is fully sealed to all edges.
