FIRE DOOR SPIN VALVE
Heated secondary air enters the firebox through a
spin valve in the FIRE DOOR back plate when the
spin valve is open to assist combustion of smoke
volatiles. Close when burning anthracite or other
smokeless fuels.
A secondary flue damper position is provided which
allows the damper to be partly opened to give bet-
ter burning in marginal draught conditions.
THE HOT PLATE
For best results use heavy based, flat bottomed
utensils. When cleaning your cooker ensure that
the underside of the hotplate is also attended to
as hard carbon and soot can build up here to such
a degree that the surface of the hotplate is being
insulated from the fire and this will, of course,
drastically reduce efficiency
MAIN OVEN
When baking or roasting, open the oven damper
and Air Valve fully until the thermometer shows a
temperature about 50°F (10°C) higher than that
which is required. Then close the Air Valve to a
point where the required temperature is sustained
(a little practice will soon show how much adjust-
ment is necessary). Much will also depend on the
strength of the chimney draught. Remember the
direct flue damper may be kept fully closed as a
by-pass is provided to allow waste gases through
at all times. When baking or roasting, if it is found
that the surface of the food is cooking too quickly
then position the plain steel shelf in the top of the
oven so as to act as a heat shield which will pro-
tect the food on the shelf beneath.
WARMING OVEN
The bottom oven is used for keeping food warm
and for warming plates.
OPERATING THE COOKER
FUELLING
Using the recommended fuels, access is through
the fire door. To fuel lift and tilt the Fire Fence out-
wards. Note: When burning timber logs the fire
fence may be removed to simplify front loading,
make sure that the logs are no longer than the rec-
ommended size so that the fire door can be fully
closed.
When refuelling open the direct damper. After refu-
elling be sure to close the damper otherwise oven
temperatures will drop and the fire box may over-
heat.
CONTROL
The air supply to the fire is controlled by the Air
Valve Lever situated under the lower part of the fire
door. Depending on the setting a high or low firing
condition will be determined by the volume of air
passing through at any one time.
DIRECT FLUE DAMPER
The direct damper as already advised must be kept
closed at all times except when kindling a new fire
or refuelling.
OVEN DAMPER
When using oven, operate damper in open posi-
tion.
OVER-FIRING
When using anthracite or coal avoid excessive fir-
ing conditions. High temperatures are unnecessary
and can only do serious harm to the Cooker. The
first indication that overheating is taking place will
be the formation of Clinker (Melted Ash) in the fire-
box and this should be removed immediately other-
wise damage will occur not only to the cooker com-
ponents but also to the fire bricks and any damage
here should be repaired without delay.
Fig.9
Fig.10
Secondary Air
Fire Door Spin Valve
Fire
Fence
Inner Ash
Door
Primary Air Valve
10
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