RECOMMENDED FLUES FOR AUSTRALIA
ARCADIA:
Floate Metal - Flomet 5” Super Single with 180• polished stainless steel flue heat
shield.
Shamic 1A with 900mm 180• polished stainless steel flue heat shield.
UTOPIA Ser 2: Acorn Metal Products - Special Insulated kit with 900mm 120• polished reflector and
425 dia. ceiling plate.
Floate Metal - Flomet Super Single with full length decorative heat shield with 120•
solid back.
Statewide Heating - Model M1 with 900mm enamelled flue shield.
Woodland Fireplaces - Woodland Standard Flat Ceiling Plate flue kit with 900mm
enamelled flue shield.
WALL SHIELDING
The minimum distances between the heater and heat sensitive walls, (shown in the
Table on page 4), may be reduced significantly by fitting suitable heat shield(s) on the
adjacent wall(s). Shields must be made of heat resistant material (such as Harditherm or
Supalux) and they must be mounted on the wall on non-combustible spacers arranged
to not obstruct the vertical flow of cooling air behind them. Shields mounted against the
wall are virtually useless.
Ventilation slots must be provided at the top and bottom of each shield, each slot
having a cross-sectional area not less than half the width of the shield multiplied by the
spacing depth. The slots should, as far as possible, extend across the full width of the
shield.
EXAMPLE: A 1200mm wide shield spaced 25mm from the wall must have ventilation
slots, top and bottom, each of an area not less than 600 x 25 mm
2
, i.e. 15,000mm
2
. So
if the effective length of each slot is 1m, it will need to be 15mm wide
Three types of shield are recommended:-
Type
Layers
Spacing
Clearance Factor
A
One
12mm
0.4 *
B
One
25mm
0.3 *
C
Two
12 & 12mm
0.2 *
* Valid only for shields within 45• of vertical.
To find the reduced minimum distances, multiply the figures in columns A, B and E
(from the Table on page 4) by the appropriate clearance factor.
EXAMPLE: An Arcadia in New Zealand, mounted parallel to the wall, has a normal
minimum rear clearance of 300mm and a side clearance of 512mm. The reduced
minimum clearances for type A shielding would be 300 x 0.4 (120mm) at the rear, and
512 x 0.4 (205mm) at the side.
NOTE: The original heater shields and flue heat shield must still be
fitted to the heater when the above factors are used.
WALL SHIELD SIZES
Shields must extend at least 600mm each side of the heater centreline on side and rear
walls, or in the case of a corner installation, 1200mm each way from the corner. They
must be at least 1200mm high (measured from the hearth top).
Because the reduced wall clearances will bring the flue close to the rear wall, (in the
case of a parallel installation), it will be necessary to extend the wall shield upwards to
protect the wall for at least 300mm each side of the flue centreline. The extended rear
wall shield will, of course, finish just clear of the ceiling to provide the top ventilation
slot described above.
WALL SHIELD FINISHES
Because the outer surface of the wall shield will become quite hot, any surface finish
must not be heat sensitive. Possibilities are high temperature paints or cladding with
ceramic tiles, slate etc.
5
