Osburn
Matrix
Inbuilt
Installation
and
Operation
Manual
______________________________________________________________________________
31
8
CLEARANCES
TO
HEAT
‐
SENSITIVE
MATERIALS
The
clearances
shown
in
this
section
have
been
determined
by
test
according
to
procedures
set
out
in
safety
standards
AS/NZS
2918:2001
When
the
wood
inbuilt
is
installed
so
that
its
surfaces
are
at
or
beyond
the
minimum
clearances
specified,
combustible
surfaces
will
not
overheat
under
normal
and
even
abnormal
operating
conditions.
No
part
of
the
wood
inbuilt
may
be
located
closer
to
combustibles
than
the
minimum
clearance
figures
given.
8.1
LOCATION
OF
THE
CERTIFICATION
LABEL
Since
the
information
given
on
the
certification
label
affixed
to
the
appliance
always
overrides
the
information
published,
in
any
other
media
(owner’s
manual,
catalogues,
flyers,
magazines
and/or
web
sites)
it
is
important
to
refer
to
it
in
order
to
have
a
safe
and
compliant
installation.
In
addition,
you
will
find
information
about
your
wood
inbuilt
(model,
serial
number,
etc.).
You
can
find
the
certification
label
on
the
side,
towards
the
front
of
the
outside
of
the
air
jacket
of
the
inbuilt.
To
access
the
certification
label,
the
faceplate
may
need
to
be
removed.
Therefore,
we
recommend
that
you
note
the
wood
inbuilt’s
serial
number
on
this
manual,
since
it
will
be
needed
to
precisely
identify
the
version
of
the
appliance
in
the
event
you
require
replacement
parts
or
technical
assistance.
8.2
POSITIONING
THE
UNIT
It
is
necessary
to
have
a
floor
protection
made
of
non
‐
combustible
materials
that
meets
the
measurements
specified
in
table
“
FLOOR
PROTECTION
”
(see
Section
8.3
.
To
determine
the
need
to
add
floor
protection
(D)
beyond
the
hearth
extension,
you
must
do
the
following
calculation
using
the
data
in
Table
Data
for
floor
protection
calculation
of
this
section:
D
=
B
‐
(A
‐
C).
If
the
value
(D)
is
negative
or
zero,
you
do
not
have
to
add
more
floor
protection
in
front
of
the
unit,
because
the
masonry
fireplace
hearth
extension
is
large
enough.
If
the
value
(D)
is
positive,
you
will
need
floor
protection
in
front
of
the
hearth
extension
at
least
equivalent
to
the
result
(D).
Here
is
a
sample
calculation
to
determine
the
need
to
add
a
non
‐
combustible
materials
floor
protection.
For
someone
whose
wood
inbuilt
would
protrude
76
mm
into
the
room
(C)
the
calculation
would
be:
Value
D
=
B
‐
(A
‐
C)
Value
D
=
500
mm
‐
(416
mm
‐
76
mm)
Value
D
=
500
mm
‐
340
mm
Value
D
=
160
mm
Non
‐
combustible
floor
protection
of
at
least
160
mm
in
depth
must
be
installed
in
front
of
the
fireplace
hearth
extension.
