16
8.3
Warning!
If
the
firewood
is
only
burning
slowly
without
flames
or
is
smoking
and
too
little
air
is
added,
unburned
exhaust
gases
are
developed.
Exhaust
gases
can
be
ignited
and
explode,
leading
to
damage
the
material
and
possible
injure
personal.
If
there
are
only
a
few
embers
remaining
you
must
light
the
fire
again.
If
you
just
add
firewood
the
fire
will
not
be
lit,
but
unburned
exhaust
gases
will
develop.
Here
firewood
has
been
added
to
an
ember
layer
which
is
too
small.
The
air
flow
is
too
small
–
smoke
has
been
developed.
Avoid
heavy
smoke
–
danger
of
exhaust
gas
explosion.
In
case
of
very
heavy
smoke
open
the
door
and
light
the
fire
again.
