Osburn
Matrix
Inbuilt
Installation
and
Operation
Manual
______________________________________________________________________________
11
3
FUEL
3.1
MATERIALS
THAT
SHOULD
NOT
BE
BURNED
•
GARBAGE
OF
ANY
KIND,
•
COAL
OR
CHARCOAL,
•
TREATED,
PAINTED
OR
COATED
WOOD,
•
PLYWOOD
OR
PARTICLE
BOARD,
•
FINE
PAPER,
COLORED
PAPER
OR
CARDBOARD,
•
SALT
WATER
DRIFTWOOD
•
MANUFACTURED
LOGS
CONTAINING
WAX
OR
CHEMICAL
ADDITIVES
•
RAILROAD
TIES
•
LIQUIDS
SUCH
AS
KEROSCENE
OR
DIESEL
FUEL
TO
START
A
FIRE
3.2
HOW
TO
PREPARE
OR
BUY
GOOD
FIREWOOD
3.2.1
WHAT
IS
GOOD
FIREWOOD?
Good
firewood
has
been
cut
to
the
correct
length
for
the
wood
inbuilt,
split
to
a
range
of
sizes
and
stacked
in
the
open
until
its
moisture
content
is
reduced
to
15
to
20
per
cent.
3.2.2
TREE
SPECIES
The
tree
species
the
firewood
is
produced
from
is
less
important
than
its
moisture
content.
The
main
difference
in
firewood
from
various
tree
species
is
the
density
of
the
wood.
Hardwoods
such
as
gums,
Manuka
or
ironbark
are
denser
than
softwoods.
Hard
wood
will
produce
long
‐
lasting
coal
beds
combined
to
more
heat
and
longer
burn
cycles.
Old,
leaky
cast
iron
wood
inbuilts
wouldn’t
hold
a
fire
overnight
unless
they
were
fed
large
pieces
of
hardwood.
That
is
no
longer
true.
You
can
successfully
heat
your
home
by
using
less
wood
and
give
the
forest
a
break
at
the
same
time.
3.2.3
LOG
LENGTH
Logs
should
be
cut
about
25
mm
(1”)
shorter
than
the
firebox
so
they
fit
in
easily.
Pieces
that
are
slightly
too
long
make
loading
the
wood
inbuilt
very
difficult.
The
most
common
standard
length
of
firewood
is
400
mm
(16”).
