Charnwood DX20i MkII - Manual (Page 4)

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 must 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
When burning solid fuels riddling
twice a day is usually sufficient.
When burning wood or peat, ash
should be allowed to build up and
generally riddling every other day
will be sufficient.
The fire should be riddled with all
doors shut. Place the tool on the knob
and rotate between the horizontal and
the 45° position several times as
shown in Fig. 3.
When burning wood or peat do not
riddle all the ash into the ashpan,
keep a layer about 12 mm (1/2 inch)
thick on the grate.
Caution: when riddling the grate
using solid fuel do not go beyond the
45° 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 or wood
position as required (the tool should
be horizontal for solid fuel or vertical
for wood or peat).
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, especially when
burning wood, 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. When burning wood use large
logs overnight as they will burn more
slowly than small ones.
Some experimentation may be
necessary to find the 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
and the airwash control nearly closed
overnight.
For overnight burning the fire doors
must be closed.
To revive the fire, empty the ashpan
if necessary, riddle (when burning
solid fuel), and turn the thermostat
control knob to maximum and open
the airwash control. When the fire is
burning well load on more fuel as
necessary and set the thermostat and
airwash controls to the desired
setting.
When burning wood do not riddle but
simply set the air controls to
maximum until the fire picks up and
then set them at the desired setting
and refuel as necessary.
Fig. 3. Grate Operation
Tool To Be
Vertical For
Wood
Do Not Go Beyond
45º Position
When Riddling
RiddleBetween
Horizontal &
45º Positions
Tool To Be
Horizontal For
Solid Fuel
Page 4
HV 7/96