24
4.2
HEBEL INSTALLATION
STEP 7: SIDE WALLS - FINAL LAYER
Using recommended Fibretex 650 Rockwool (minimum 30mm
thick) place a layer on each inside wall panel.
STEP 8: OUTDOOR AIR KIT
(IF NOT REQUIRED GO TO STEP 9)
Any depression or lack of fresh air within the room where the
fireplace is located can cause emanation of smoke to flow
back into the room and the unit to run inefficiently. It is highly
recommended that an Outdoor Air Kit be installed in six or more
star rated homes, or any install where a mechanical device (ie.
fan), takes air from the fireplace cavity & transfers it.
STEP 9: 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.
15°
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
sheet, with 1 x 25mm Rockwool sheet. 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) and heat proof tape to seal the air gaps.
Please
ensure the cavity lid is fully sealed to all edges.
