Running the fire with the doors open, Heating system, Ash clearance – Charnwood LA30iB User Manual

Page 6: Riddling, Refuelling, Overnight burning

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anthracite, or homefire which 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,
particularly to the boiler. 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.

HEATING SYSTEM

The heating system controls may
consist of time switches, room
thermostats, outdoor temperature
thermostats and thermostatic radiator
valves in virtually any combination.
These will work in conjunction with
the thermostat control on the fire. The
thermostat on the fire will simply
control the temperature of the boiler
and hence the temperature of the

radiators and domestic hot water. The
automatic controls (other than
thermostatic radiator valves) will
switch the pump (and hence the
radiators) on and off. Your installer
will be able to explain the controls
fitted to your system and how to
operate them.

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 itís
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° position several times as
shown in Fig. 3.

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 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. If any
pieces of fuel have been inadvertently
loaded onto the top of the throat
plate, then remove them using the
scraper tool.

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 to maximum for a brief
period until the fire is burning

Fig. 2. Secondary Air Control

Open

Secondary Air
Flap (shown
closed)

Fig. 3. Grate Operation

Riddle Between
Horizontal&
45° Positions

AfterRiddling
Move Tool
To Horizontal
Position

Do Not Go Beyond
45° Position
When Riddling

Page 4

LA30iB 3.99

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