28
OPERATING
&
INSTALLATION
INSTRUCTIONS
FOR
PEDESTAL
WOOD
HEATERS
CONSTRUCTIONS
AND
CLEARANCES
FACTORS
FOR
APPLIANCES
HEAT
SHIELDS
WHICH
ARE
WITHIN
45
o
OF
THE
VERTICAL
HEAT
SHIELD
CONSTRUCTIONS
Minimum
air
gap
dimensions
(mm)
Clearances
factor
Single
layer
of
continuous
material
12
0.40
Single
layer
of
continuous
material
25
0.30
Two
spaced
layers
of
continuous
material
12+12
0.20
NOTES:
1
‐
Masonry
may
be
used
as
a
heat
shield
material.
2
‐
Where
heat
shields
are
used
to
reduce
appliance
clearance
dimensions,
additional
flue
shielding
may
also
be
required.
Refer
to
AS/NZS
2918:2001.
3
‐
Non
standard
installations
–
Refer
to
AS/NZS
2918:2001
for
guidance.
CONSTRUCTIONS
AND
CLEARANCES
FACTORS
FOR
APPLIANCES
HEAT
SHIELDS
WHICH
ARE
MORE
THAN
45
o
OFF
THE
VERTICAL
HEAT
SHIELD
CONSTRUCTIONS
Minimum
air
gap
dimensions
(mm)
Clearances
factor
Single
layer
of
continuous
material
12
0.80
Single
layer
of
continuous
material
25
0.60
NOTES:
1
‐
Masonry
may
be
used
as
a
heat
shield
material.
2
‐
Where
heat
shields
are
used
to
reduce
appliance
clearance
dimensions,
additional
flue
shielding
may
also
be
required.
Refer
to
AS/NZS
2918:2001.
