Specifications

whenever possible, because it is so easy to light, a
lot of people, especially in the Summer, run the appli-
ance for just a few hours with a strong roaring fire.
The appliance is then allowed to die until the hot
water is used up and then is relit. From the appliance
and flue point of view, this is a better technique than
running a low fire continually. (Fig. 1 & 2)
5
EXTERNAL RIDDLING
Lift the riddling cover on the ash door and insert the
operating tool into the hole until it engages with the
spigot on the grate and move vigorously. In addition
it is also recommended that the firebed itself be thor-
oughly raked at intervals thus loosening up such de-
bris as clinker, stones, etc. which are then easily
removed. (Fig.3).
Some attention should be paid to the amount of ash
that is allowed to build up in the firebox. Wood has
better burning characteristics if a bed of ash is al-
lowed to build up, riddling only being necessary to
level up the fire (for cooking, for example). Coal or
smokeless fuels, on the other hand, burn better if they
are well riddled to allow a good airflow to the fire. For
slow combustion it is better to have a thicker ash bed
for all fuels. Therefore, do not riddle the fire before
slowing it down for overnight burning, but riddle it if
required in the morning or before cooking.
When using anthracite or coal avoid excessive firing
conditions. High temperatures are unnecessary and
can do serious harm to the cooker. The first indication
that overheating is taking place will be the formation
of clinker (melted ash) in the firebox and this should
be removed immediately otherwise damage will occur
to the firebars and cooker components and any dam-
age here should be repaired without delay.
The ashpan must be emptied as required otherwise
ash will build up to a point where it interferes with the
natural flow of cool air through firebars and as a con-
sequence these will be damaged.
ASHPAN
ASH REMOVAL
THERMOSTAT WITH MANUAL OVERRIDE
The air supply to the fire is controlled by the thermo-
stat probe inserted into the boiler and the control knob
attached to the ash door.
The automatic thermostat has 6 settings which control
the heat to which the boiler water will rise for central
heating purposes. Setting 0 will close the thermostat,,
setting 3 will give a nominal burning rate of 2
1
/2 to 3kg
per hour of house coal. Setting 5 will give maximum
water heating and high oven temperatures.
Fig.2
Fig.3
Fig.4
Control
Knob
Riddling
Cover