20
4.1
MASONRY BRICK INSTALLATION
STEP 12: FRONT OF THE ENCLOSURE
The front of the enclosure can now be fitted with masonry
bricks, or a layer of 12mm minimum thick heat resistant sheet.
Remember to keep an air gap of 25mm from the front of the
unit.
STEP 11: FLUE INSTALLATION
The triple skin flue will then be continued into the roof cavity
and above the roof line, as per Australian & New Zealand
Standard AS/NZ 2918:2018. There must be a 25mm clearance
around the outer triple skin flue. The flue must extend a
minimum 1m above the roof line and have a 3m diameter
clearance from the top of the cowl to any objects in a
horizontal direction.
**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.
STEP 10: FLUE INSTALLATION
Triple skin flue is to then be continued on top of the cavity lid.
The lower end of the triple skin casing shall be close fitting
against the lid and the outer casing must be ventilated. Air
vents on the first length of triple skin flue must be cut or
manufactured into the bottom length of the flue.
