Install-Xander_Insert_BUILT-IN_ZC - 2021-11-25.docx www.yunca.co.nz
Page 7 of 18
L.
Conditions for Flues
(Fig. 4)
L1.
The FLUE shall extend to:
Not less than 600mm above the highest point on the roof if within 3.0m of that point, or
Not less than 1000mm above the intersection point with the roof and not lower than any point of
the roof within 3.0m.
In any case the length of the flue shall not be less than 4.6m from the ash floor protector.
L2.
In some situations the Local Council may vary the above requirements.
L3.
The flue system must comply with AS/NZS2918:2001.
L4.
A minimum of 25mm clearance must be left between the outer casing of the flue and any surrounding
combustible materials.
L5.
For situations where the cavity terminates at ceiling level, suitable measures must be taken to
prevent accidental migration of loose-fill or any combustible material by any action of wind or by
persons moving in the ceiling space. Such installations are not detailed in these instructions, so
please refer to AS/NZS 2918:2001, and your local authorities for requirements.
More than 3000
3000
or less
6
0
0
m
in
.
3000
1000 min. if clear
within 3000 of
flue top
.
3000
Any nearby
structure
.
1000 min. if clear
within 3000 of
flue top
MINIMUM HEIGHT OF FLUE SYSTEM EXIT
NOTE : Dimensions are in millimetres
3000
or less
6
0
0
m
in
.
More than 3000
3000
.
Increase from
1000 min. until
clear within
3000 of flue top
Fig. 4
