1.
Install
first
length
of
flue
pipe
crimped
end
down,
inside
gather
collar.
Rivet
flue
pipe
in
3
places
around
gather
collar.
Place
bottom
flue
spider
bracket
around
gather
flue
pipe
collar,
secure
in
position
by
tightening
up
coach
bolt/screw
(supplied).
Seal flue with fire
2.
Install
second
length
of
the
flue
pipe
crimped
end
down
and
fix
by
riveting
in
at
least
3
places
around
the
flue
pipe
joint.
3.
Install
first
length
of
the
flue
pipe
casing
by
positioning
on
installed
bottom
flue
spider
bracket
crimped
end
up.
4.
Position
flue
spacer
at
the
flue
pipe
joint.
5.
Repeat
steps
1
-
4
to
the
required
flue
height.
As
per
AS/NZS2918:2001
4.9.1
a.
“the flue
pipe
shall
extend
not
less
than
4.6m
above
the
top
floor
protector”.
b.
“the
minimum
height
of
the
flue
system
within
3m
distance
from
the
highest
point
of
the
roof
shall
be 600mm above
that point”.
c.
“the
minimum
height
of
a
flue
system
further
than
3m
from
the
highest
point
of
the
roof
shall
be”
a
minimum “1000mm above
roof
penetration”.
d.
“no
part
of
any
building
lies
in
or
above
a
circular
area
described
by a
horizontal
radius
of
3m
about
the
flue system
exit”.
6.
The
last
length
of
flue
pipe
needs
to
extend
past
the
flue
pipe
casing
by
at
least
150mm
or
flush
with
the
top
of
the
casing
cover
spigot
when
fitted
-
sizing/measuring
and
cutting
down
should
be
carried
out
prior
to
the
flue
pipe
casing
being
fitted
over
the
flue
pipe.
7.
Before
fitting
casing
cover,
place
the
spider
in
opposition
with
the
spider
post
facing
down
between
the
flue
pipe
and
flue
pipe
casing.
Secure
spider
in
position.
Place
the
casing
cover
over
the
flue
pipe,
press
down
firmly
onto
the
spider.
Check
airway
around
the
casing
cover
is
clear,
then
secure
in
position
using
three
stainless
steel
rivets.
8.
Fit
cowl
to
top
of
flue
-
DO
NOT
RIVET
IN
POSITION.
In
high
wind
areas,
it
is
recommended
that
the
cowl
be
secured
in
position
with
a
stainless
steel
self
tapping
screw,
this
will
enable
the
cowl
to
be
removed
for
cleaning.
Discuss
Bird
Proofing
needs
with
your
installer.
9.
If
flue
is
concealed
in
a
chase,
allow
for
air
vents
(2
x
80mm
diam.
or
equivalent)
at
the
highest
possible
point
on
the
chimney
chase
or
alternatively,
allow
a
min
25mm
air
space
between
the
casing
cover
spigot
and
the
outer
casing.
Refer
to
pg.
12.
FLUE INSTALLATION – SOLID FUEL
3000
or less
3000
More than 3000
600 min.
3000
increase from 1000mm
minimum until clear within
3000mm of flue top
increase as necessary
until nothing within
3000mm of flue top
Any nearby structure
As per AS/NZS 2918:2001 4.9.1 Fig 4.9
MINIMUM HEIGHT OF FLUE SYSTEM EXIT
Note: 2 x flue lengths are supplied as a minimum for free standing outdoor built installations. If
the outdoor fire structure is attached to the house the flue will need to be extended and meet
the following requirements
;
11