Phil Green & Son Aga Operating instructions

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Phil Green & Son ©
Site preparation details for Oil Aga Range
Cookers
Flue Arrangements: All of our reconditioned Aga
Range Cookers require a conventional or open flue,
i.e. a chimney. This can either be in the form of an
existing brick chimney or by installing a pre fabricated
flue system.
Current legislation requires that any flue installation is
subject to building regulations and planning, or it
must be installed by an OFTEC qualified and
registered engineer, who is therefore not required to
apply for local authority permission.
Each flue installation requires the appropriate
documentation usually in the form of a data plate
located at the electric meter, detailing flue
specification, location, with the installers name and
address plus the date of the installation.
Our engineer will need to verify the presence of a flue
data plate prior to any appliance installation.
Existing Brick Chimney: An existing brick chimney
needs to be lined with a 125mm flexible flue liner to
BS 715. The chimney will need to be swept prior to
installation of the liner. This also applies to chimneys
built using clay liners or flue blocks.
As the term chimney liner implies it is for use only
within the confines of an existing chimney and should
not be used outside these confines.
A 125mm to 100mm reducer will be required where
the liner joins the 100mm vitreous flue pipe from the
Aga Range Cooker.
Flue connections to Aga Range Cooker: The flue
can be connected to exit either vertically from the top
of the flue box or horizontally from the rear of the flue
box. Where the flue is to exit vertically from the Aga
Range Cooker there must be a minimum of 600mm
of vertical pipe prior to any bends and these bends
should be no greater than 45 degree. Basically the
liner or pre-fabricated flue should enter the room as
high as possible enabling the first bend in the flue to
be a minimum of 1600mm above the level of the
plinth.
Where the flue is to exit horizontally from the rear of
the flue box the horizontal run should be as short as
possible.
In situations where it is unable to provide the 600mm
of vertical rise from the top of the flue the Aga Range
Cooker can be brought forward from the back of the
wall allowing the use of the rear exit.
Special attention should be given to the diagrams
detailing the flue box dimensions.
For instance despite popular thought the flue is not in
centre of the Aga Range Cooker.
The Aga Range Cooker uses 100mm vitreous flue
pipe, which is then adapted to the 125mm flue by a
reducer.
Plinth: The cooker should be positioned on a level
base of non-combustible material, i.e. concrete/slab.
The plinth width for a 2 oven Aga Range Cooker is
987mm The plinth width for a 4 oven Aga Range
Cooker is 1490mm The depth for a Delux Aga
Range Cooker is 690mm The depth for a Traditional
is 670mm
The height of the plinth is optional but is usually no
less than 50mm, which brings the top plate of the
Aga Range Cooker to a normal 900mm work top
height.
Important: The plinth should be positioned with the
position of the flue in mind remembering that the flue
centre line is 470mm from the right hand edge of the
plinth.
Pre-Fabricated Flue Systems: In the absence of an
existing chimney a pre-fabricated flue can be used to
run either within the fabric of the building or
externally.
Flue should be 125mm double skinned insulated
such as K vent or LTZ.
In exposed situations where the majority of the flue
run is external it may be advisable to use a higher-
grade flue such as Selkirk or SMZ or SMW.
When using a pre-fabricated flue it is important to
ensure the flue will terminate above the ridge of the
roof in a similar position to existing chimneys. A flue
terminating above guttering will possibly be subject to
downdraught and therefore be useless. It is
advisable to sort out such problems at the design
stage, usually by locating the appliance in a more
suitable position ie against the gable end where a

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Phil Green & Son ©
flue can be run above the ridge height with no
problem. The Pre Fabricated Flue will require a
125mm/100mm reducer to connect to the 100mm
flue of the Aga Range Cooker.
Cowls The minimum requirement is a parasol type
cowl, (Sometimes referred to as chinaman’s hat),
which is guarded by a wire grid to prevent access by
birds etc.
In most cases it is best to install an OH cowl suitable
for oil appliances at the time of preparing for your
cooker, rather than having to fit one at a later date
after experiencing flue problems.
Fuel Supply: Fuel: 28 second kerosene heating oil
Tank All new tank installations must be bunded and
positioned as per current legislation. The Aga Range
Cooker will need a tank of around 1000 litres but if
sharing a tank with a boiler etc, a larger tank may be
more convenient.
The Aga Range Cooker relies on a gravity flow oil
line. The base of the tank will need to be no less
than 500mm higher than the level of the Aga Range
Cooker plinth. The tank outlet should be at the
bottom to the tank. Should the base of the tank be
higher than 3m from the plinth level a pressure
regulator will be needed in the oil line to prevent
excessive oil pressure on the control valve.
If it is impossible to site the oil tank above the plinth
level or the tank has a top outlet, a lifter will have to
be used to provide oil to the Aga Range Cooker.
Oil Pipe: The Aga Range Cooker requires a 10mm
supply directly from the tank via a filter. This must be
a dedicated supply line and not shared with another
appliance. This is a safety issue. The oil line should
enter the building as close to the appliance as
possible thus avoiding long runs of unprotected
internal pipe work. Prior to entering the building a
remote type safety valve should be positioned in the
oil line with a sensor of length long enough to be
positioned above the Aga Range Cooker fire control
valve. Safety valves can have a sensor up to 15m
long if they need to be longer there are electric
versions. A filter should be positioned in the oil line
just before the safety valve.
Siting the Aga Range Cooker: This is the most
important stage of the installation and will determine
the ease or difficulty in connecting the appliance to
itís services i.e. flue, oil and water.
The overriding factor in siting the Aga Range Cooker
is its position relative to the flue. The flue must
terminate in a position such that it is exposed and not
subject to any unusual draughts created by
surrounding obstacles. This ability is ultimately down
to where the Aga Range Cooker is sited.
Also the Aga Range Cooker requires an air vent
directly to outside so effectively the room where the
Aga Range Cooker is sited must have an outside wall
or at least the ability to be able to pipe an air vent
from outside the room where the Aga Range Cooker
is sited.
If the Aga Range Cooker is to supply domestic hot
water then thought must be given to the ability to run
flow and return pipes from the Aga Range Cooker to
the hot water cylinder on a gravity flow system, i.e.
the flow pipe must rise constantly to the cylinder.
The oil supply line should be able to enter the
building as close to the Aga Range Cooker as
possible, thus avoiding long runs of internal oil line.
Ventilation: The minimum air provision is to fit an air
vent supplying no less than 100 sq cm of free air
directly from outside to the room in which the
appliance is fitted. The vent is best fitted at high level
allowing the cool air to mix with the hot air in the
room lessening its impact.
Extractor fans can interfere with the flue so if they are
to be fitted in the same room as the Aga Range
Cooker it should have a maximum mechanical
extract rate of 20 litres/second. In this instance the
air vent should be positioned between the extractor
and the appliance so the extractor pulls its air from
the vent and not from the flue of the Aga Range
Cooker.
Once again our engineer will have to verify the
presence of a suitable air vent prior to installing the
Aga Range Cooker.
Oil Control Valve: This is normally sited on the side
of the Aga Range Cooker as per the illustration and
will increase the width of the Aga Range Cooker by
approx 90mm. If this position is not possible the
valve can be positioned up to five feet away but the
height at which the valve is positioned is critical and
cannot be altered.
If the control valve is sited on the side of the Aga
Range Cooker and positioned within a kitchen unit it
will obviously be better if this unit is a cupboard
rather than a drawer unit. Access will be required to
the valve for servicing etc.

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Hot water: Where the Aga Range Cooker is to be
fitted with a boiler to heat the domestic hot water it
must be connected to a gravity flow system, it must
not be indirect.
The hot water pipes can exit from either side of the
Aga Range Cooker.
The hot water cylinder should be sized 48 inches x
18 inches. If convenient a small radiator/towel rail
can be run off the system acting as a heat leak. Flow
and return pipes in 28mm with a 22mm overflow
pipe. Care should be taken to ensure the flow pipe
rises constantly from the Aga Range Cooker to the
cylinder. When positioning the flow pipe for
connecting to the Aga Range Cooker it is better that
the pipe is higher than lower.
Where a central heating boiler is also heating the
same cylinder a twin coil cylinder should be used
keeping the two systems separate. As a rule the top
coil is run by the boiler and the lower coil by the Aga
Range Cooker. All pipes should be lagged.
For position of the water pipe tails refer to diagrams
remembering that dimensions are different for the
traditional (standard) model and the deluxe model.
Prices for 4 inch black vitreous flue pipe for the internal flue (all prices +VAT)
Standard pipe
600mm
£23.63
980mm
£31.32
Pipes with door
600mm
£32.22
1000mm
£41.72
Elbows
45 degree
£23.83
90 degree
£26.54
110 degree
£26.54
Elbows with door
45 degree
£37.10
90 degree
£44.81
110 degree
£44.81
Accessories
Standard joint clamp band
£7.84
Increasor
£20.54
Vitreous to stainless steel adapter
£14.82
Adapter to flexible liner
£17.44