Charnwood Roomheater - Manual (Page 4)

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
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
Fig. 2. Secondary Air Control
Open
Secondary Air
Flap (shown
closed)
Fig. 3. Grate Operation
C
W
Riddle Between
Horizontal &
45° Positions
After Riddling
Move Tool
To Horizontal
Position
Do Not Go Beyond
45° Position
When Riddling
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