Open
Secondary Air
Flap (shown
closed) |
Fig. 2. Secondary Air Control
should be burnt with the secondary air inlet open.
RUNNING THE FIRE WITH THE DOORS OPEN
The fire may be run with the doors open. This will result in a reduction in efficiency and hence heat output. The more reactive fuels, like homefire, will burn better when the doors are open than fuels like phurnacite, sunbrite and ancit.
For safety reasons, if the fire is to be left unattended with the doors open then use a spark guard which complies with BS 3248.
ASH CLEARANCE
The ashpan should be emptied regularly before it becomes too full. The most convenient time to remove the ash is just before riddling the fire since the ash will then be at it’s coolest. Use the tool provided to remove the ashpan.
Never allow the ash to accumulate in the ashpan so that it comes in contact with the underside of the grate as this will seriously damage the grate bars.
Ensure that the air inlet damper is
not prevented from closing by spilled fuel or ash.
Care should be taken to ensure that ash is cool before emptying it into plastic liners or bins.
To make ash removal easier there is a special Charnwood ash carrier available. This may be purchased from your supplier or, in case of difficulty, from ourselves.
RIDDLING
Riddling twice a day is usually sufficient.
The fire should be riddled with all doors shut. Place the tool on the knob and rotate between the horizontal and the 45 degree position several times as shown in Fig. 3.
Caution: when riddling the grate using solid fuel do not go beyond the 45 degree position as this can cause the grate to jam.
If jamming does occur then the fire should be allowed to burn for approximately half an hour before riddling the grate again as described above.
Too much riddling can result in emptying unburnt fuel into the ashpan and should therefore be avoided. Clinker should regularly be removed from the firebed.
After riddling, the grate should be put back into the solid fuel position (the tool should be horizontal).
REFUELLING
Keep the firebox well filled (the fuel may be sloped up from the front firebars), but do not allow fuel to spill over the top of the front fire bars. Take care that fuel does not project over the front fire bars or damage to the glass may be caused when the doors are closed.
OVERNIGHT
BURNING
Empty the ashpan, if necessary, and then riddle the fire. If the fire is very low then it may be necessary to add a little fuel and turn the thermostat control up for a brief period until the
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Do Not Go Beyond |
45° Position |
When Riddling |
Riddle Between |
Horizontal & |
45° Positions |
W |
C |
After Riddling |
Move Tool |
To Horizontal |
Position |
Fig. 3. Grate Operation
fire is burning well before filling with fuel.
Some experimentation may be necessary to find the thermostat setting most suitable for the particular fuel used and the draw on the chimney, but generally the thermostat should be turned down to the minimum setting overnight.
For overnight burning the fire doors must be closed.
To revive the fire, empty the ashpan if necessary, riddle, and turn the thermostat control knob to maximum. When the fire is burning well load on more fuel as necessary and turn the thermostat to the desired setting.
THROAT PLATE AND FLUEWAY CLEANING
It is important that the throat plate and all the appliance flueways are kept clean. When burning smokeless fuels they should be cleaned monthly. When burning other fuels they should be cleaned at least once a week, and
LA20i 3/99