Lighting with Basket Grate
When lighting the fire, the throat restrictor should be opened fully by pulling the operating lever
foreword. When using solid mineral fuel or smokeless fuel place the fuel around the edge of the
basket forming a circle or two circles. Leave a well in the centre of each circle. Start the fire in
this well using proprietary firelighters and or kindling wood. Then gradually bring the fuel in over
the fire lighters/kindling. See sections on Use of the Throat Restrictor and Fuels below.
Use of the Throat Restrictor
The throat restrictor serves two purposes. It reduces the amount of air drawn up the chimney to
the minimum necessary to keep the fire burning well and to carry away the smoke. It also has
an effect upon the burning rate of the fire. The degree of control exercised by the throat restrictor
is dependent on the draw of the chimney.
When lighting the fire, the throat restrictor should be opened fully by pulling the operating lever
foreword. Once the fire is established, the operating lever may be pushed back to a position
where the throat restrictor is as far closed as possible while maintaining smoke or fume
clearance. Whenever fuel is added to the fire, the throat restrictor should once again be opened
fully until the fuel is well alight.
When operating the fire on a weak flue (as in some bungalows with relatively short chimneys)
the optimum position of the throat restrictor may be half open or more. With flues of greater
efficiency or taller chimneys, smoke clearance may be possible with the restrictor almost
completely closed. Note that in the latter case, a small throat area is left open to guarantee
chimney ventilation.
Damping down over long periods (overnight with logs on the large models), the fire should be
allowed to die down before banking up the fuel and closing the throat restrictor to the minimum
while maintaining smoke clearance. Banking up and closing the restrictor on a hot fire will cause
the fire to roar away, overheat and burn out quickly. The right technique comes with a little
experience, and varies with the fuel being burnt.
Seasonal Use
In the summer months or at times when the fire is not being used then the throat restrictor may
be closed to eliminate draughts and to minimise the air loss from the room.
Fuels
The table below shows the recommended fuel sizes, weights and refuel interval to achieve the
outputs given on pages 1 & 2 in accordance with EN13229: 2001
21
FUEL DATA
STANDARD
UNIVERSAL
LOW
EXTRA
MODEL
16
18
500
600
700
500
600
700
700
850
1050
WOOD TRAY
WOOD SIZE
Length & Diameter
mm
200 Lth
75
200 Lth
75
200 Lth
75
200 Lth
75
X
200 Lth
75 E
200 Lth
75 E
X
X
X
X
MAXIMUM REFUEL
WEIGHT
Kg
2.5
2.9
E
4.1
E
5.0
X
3.4
E
4.1
E
X
X
X
X
MINIMUM REFUEL
INTERVAL
Hr
1
1
E
0.75
E
0.5
X
0.75
E
0.5
E
X
X
X
X
BASKET GRATE
SMOKELESS FUEL
MAXIMUM REFUEL
WEIGHT
Kg
2.5
X
X
X
X
X
X
X
X
X
X
MINIMUM REFUEL
INTERVAL
Hr
2
X
X
X
X
X
X
X
X
X
X
BASKET GRATE
WOOD
MAXIMUM REFUEL
WEIGHT
Kg
2.0
X
X
2.7
X
X
X
X
X
X
X
MINIMUM REFUEL
INTERVAL
Hr
0.3
X
X
0.2
X
X
X
X
X
X
X
Note:- Data was derived using the following fuels, WOOD:- Beech, Birch, Hornbeam. SMOKELESS FUEL:- Homefi re. In accordance with EN13229:
2001. E = Jetmaster Figures
Содержание Standard 16
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