FRANCO BELGE Belfort User manual

TECHNICAL
ABGO. 1 SIDINGS CLOSE, WEDNESFIELD ROAD, WOLVERHAMPTON. WV11 3DR
Oil Stove Installation
INSTRUCTIONS FOR FRANCO BELGE OIL STOVES

A Franco Belge oil stove is the result of many years of engineering research and design expertise. Before beginning the
task of installing the stove it should be remembered that it will be the major feature in any room when it is lit and will
continue to add character even when cold.
We recommend the installation of the stove is carried out by suitably qualified persons working to the Codes of
Practice issued by OFTEC and B&ES which are current at the time of installation. Our technically qualified staff will
happily answer any questions which are not covered by the literature delivered with the stove.
The installer is responsible under the Health and Safety at Work act 1974 vi the caustic nature of fire cement and the
possibility of disturbing asbestos and other materials such as ceramic in existing installations and to suggest
appropriate protection to be given to the person(s) carrying out the installation. The complete installation must be
carried out with due reference to the following Standards and Codes of Practice.
It should be noted that the requirements and these publications may be superseded during the life of this manual.
BS 799 Part Five, Specification for Oil Tanks.
BS 5410 Part One, Oil Firing Installations Up To 44kW.
BS 4543 Parts One & Three, Factory Made Insulated Chimneys.
Building Regulations: -
Part J England and Wales. Part F Scottish Regulations. Technical Booklet L for Northern Ireland
UK Distributor
Technical Support: 01902 790900
8.30- 5.30 during week days.
Email: [email protected]o.uk
Franco Belge Europe s.A.
127ieme RIF, 15 Zoning industriel Email: [email protected]
5660 Mariembourg
Burner Operation
The oil burner can be referred to as a dry burner. During the burning operation the burner base is dry of oil. As the
oil enters through the oil supply pipe it is vaporised by the heat reflected from the catalyser.
Under no circumstances should the appliance be operated with oil in the burner other than a small damp patch at
time of ignition.
The ability of the burner to burn correctly is dependent on the correct mix of fuel (oil) and oxygen (air).
These stoves are not suitable for installation on a boat. If you require an oil stove for a boat please contact ABGO for
further advice on suitable appliances and retailers.
These stoves should not be fitted in a bathroom or bedrooms where there is an increased risk of carbon monoxide
poisoning.

Competent Persons Regulations and Oil Technicians in England and Wales
The Government have introduced the Competent Persons Scheme in England and Wales to give an advantage to
operatives within the Construction Industry who are members of bodies that implement approved systems of
competence assessment and inspection.
It is designed to remove some of the burden of supervising work away from the Local Authority Building Control
Departments, so that they can concentrate on tracking down and prosecuting the ‘cowboy’ element within the
construction industry.
For the oil industry, the OFTEC Registration Scheme has been chosen to define competence. The Building Act of 1984
requires a person carrying out certain types of building work to give building notice or Building Regulation approval to
Building Control. This will involve payment of a fee to the Local Authority.
As from 1st April 2002, an amendment to Regulation 12 of the Building Regulations which covers Combustion
Appliances came into force. This exempts OFTEC Registered Installation, Commissioning and Servicing Technicians and
Tank Installation Technicians from the need to give notice and pay a fee when carrying out new installation work,
replacement work or making a major change to a system, in the areas covered by their class of registration. Registered
Technicians are required to keep a record of any work they undertake. OFTEC provides approved control documents
for installation work (CD/10) and commissioning work (CD/11).
It should be noted that the Building Regulations define installation work as including commissioning. An oil installation
will, therefore, require to be both installed and commissioned by a suitably qualified OFTEC Technician, if the need to
apply for a notice and pay a fee is to be avoided. The table overleaf shows which categories of technician can undertake
the various types of work covered by the new Regulations.
If you are qualified then you are competent to install this stove.
It is recommended that an audible carbon monoxide alarm is fitted as a precaution.
Order code: CO7B-10Y 10 YEAR CO ALARM
The carbon monoxide alarm should comply with BS EN 50291-1:2010, and must be installed to the manufacturers’
installation instructions, and current Buildings Regulations.

OFTEC
QUALIFICATION
INSTALL
COMMISSION
CONTROL
DOCUMENTATION
OFT 105 Appliance
Installation Technician
Appliance
Flues & Vents
Oil Lines & Fire Valves
Tanks
Heating Systems
-
-
Oil Lines & Fire Valves
Tanks
Heating Systems
OFTEC CD/10
OFT 101 Pressure Jet
Commissioning
Technician
-
Appliances
Combustion & Safety
Flues & Vents
Oil Lines & Fire Valves
Tanks
OFTEC CD/11
OFT 102 Vaporising
Commissioning
Technician
-
Vaporising Appliances
Combustion & Safety
Flues & Vents
Oil Lines & Fire Valves
Tanks
OFTEC CD/11
OFT 600A
Oil Lines & Fire Valves
Tanks
Oil Lines & Fire Valves
Tanks
OFTEC CD/10
The types of work covered under the new Part J Approved Document of the England and Wales Building Regulations
are new or replacement installations of boilers, oil tanks, associated pipe work, including the fitting of remote acting
fire valves and major changes to flueing systems.
Part L1 of the Regulations, which came into force at the same time, covers the energy efficiency aspects of heating
system installation, particularly their controls and requires commissioning to be properly undertaken and a certificate
completed by a competent person.
The Building Act falls under criminal law and there is a structured fining system for those who are found not to comply.
This is an important step which acknowledges those in the industry who work to Regulations and Standards and will
help customers recognise that OFTEC Registered Technicians have had their competence independently assessed.
Flue Exit Direction –Belfort Oil Stove 174 05 06
Top Flue Exit
- Open the main door, remove the ceramic logs if fitted and
remove the internal baffle.
- Fix the sealing rope in the groove on the top and fit the
flue spigot using the two bolts and washers supplied,
ensuring there is a good seal.
- Replace the internal baffles.

Rear Flue Exit
- The cut-out in the rear heat shield must be removed in the
case of using the rear flue exit and the heat shield removed
from the back of the stove.
- Open the main door, remove the ceramic log effect kit if
fitted and remove the internal baffle.
- Remove the blanking plate 5 and the clamp 4 from the
back and refit them on the top with the 2 screws and
washers supplied 7, ensuring there is a good seal 2.
- Set the ceramic rope in the groove and fix the flue
collar at rear with 2 bolts and washers supplied.
- Reinstall the internal baffles.
- Replace the rear heat shield.
Flue Exit Direction –Savoy Oil Stove 174 07 07
The flue collar/adapter can be fitted to give a rear or top flue exit. If using the top flue exit the blanking plate is not
required.

Flue Exit–Burgundy/Bourgogne Oil Stove 174 10 59
The stove has a top plate that lifts up to gain access to the simmering plate so there
is only a rear exit option for this model.
We recommend a “T” piece secured to the flue collar with a self-tapping screw.
Installation
Do not be tempted to fit the stove into an unsuitable fireplace. Beyond the requirements of Building Regulations and
providing suitable access to facilitate servicing the stove, providing a setting which will complement the stove is not a
luxury, it is the practicality of making the most of an investment. A good builder will be able to transform even the
most mundane of fireplaces, whether altering its proportions to those of the “Golden Mean” ideal, exposing a wooden
lintel, stone or simply removing superfluous detailing for comparatively small costs, and the result will be a pleasure
for many years.
Golden Mean

Minimum Installation Clearances
The measurements to combustible materials are
for advice only. In all installations surrounding
inflammable materials must not exceed 80°C and
therefore in certain circumstances they may need
to be increased.
The stove must always stand perfectly level and
have sufficient space allowed for commissioning
the stove and service work. This may lead to the
clearances to non-inflammable materials also
being increased from those in the tables below.
* The stove is supplied with a cast iron
hearth plate, which we strongly recommend
that you use to protect the surface below. It
is also the minimum non-inflammable
thickness required for installation.
⧫ This is the minimum distance in front, at
floor level, from the base of the stove. All
combustible materials above floor level in
front of the appliance must be a minimum
distance of 500mm away or any
combustible materials must not exceed
80°C.
Belfort
Minimum clearance
from combustible
materials
Minimum clearance
from non-inflammable
materials
A
450mm
300mm
B
200mm
150mm
C
225mm⧫
225mm
D
200mm
150mm
E
200mm
150mm
F
12mm*
12mm*
Savoy
Minimum clearance
from combustible
materials
Minimum clearance
from non-inflammable
materials
A
450mm
300mm
B
200mm
150mm
C
225mm⧫
225mm
D
200mm
150mm
E
200mm
150mm
F
12mm*
12mm*
Burgundy/
Bourgogne
Minimum clearance
from combustible
materials
Minimum clearance
from non-inflammable
materials
A
450mm
300mm
B
300mm
150mm
C
225mm⧫
225mm
D
300mm
150mm
E
300mm
150mm
F
12mm*
12mm*
F
C
A
E
B
D

The Flue
There is often confusion as to the terms “flue” and “chimney” and for the purposes of this manual we define whatever
duct conveys the products of combustion as the flue, and the term chimney to mean any masonry structure within
which the flue may be contained. It is upon the flue’s ability to provide a consistent negative pressure or “flue draught”
that the efficiency and reliability of the stove will depend and it is therefore important to understand what can affect
the flue’s performance and how to ensure the flue installation provides your stove with the optimum operating
conditions.
However well the oil valve is calibrated, good combustion is dependent upon the correct amount of air being supplied
to the stove at all times and this is ultimately dependent on a correct and stable negative flue pressure. The initial
“flue draught” is created by the gas confined within the flue being hotter and therefore lighter than the air outside the
flue. The tendency for the hot gas to move up the flue is proportional to the height of the flue since the difference in
weight of equivalent columns of air and flue gas is greater the higher the column. Whilst this may be theoretically true,
in practice, because the temperature of the flue gas is cooled through the wall of the flue and the flow is slowed by
the friction of the internal surface of the flue, the benefits of extreme flue heights are negated. The need to minimise
the fluctuating effects of wind by having very hot flue gas temperatures inducing the greatest possible constant
negative pressure within the flue, conflicts with the ideal of utilising all the heat generated withinthe stove for heating.
The compromise is to ensure that whatever heat it is necessary to expend on creating a gas flow within the flue, the
flue makes the most efficient use of this heat by being constructed with an internal surface as smooth as possible and
by being thermally insulated. Both these requirements can be met in an existing chimney by lining it with a stainless-
steel oil liner insulated with vermiculite or mineral wool, and where no chimney exists, twin walled insulated stainless-
steel flue systems are available.
If there is an existing flue liner this should be replaced whenever a new appliance is fitted
In all installations the flue diameter must be the same diameter as the flue spigot on the stove so in all cases this will
mean lining an oversized masonry chimney or clay pot lined flue with a suitable flue liner. A minimum of 4m high or
taller.
Atmospheric Influences
To control these, the stove is fitted with a draught stabilizer (barometric damper). When the negative pressure
approaches the desirable upper limit the stabiliser opens, drawing air directly into the flue to supplement the flue
gases coming from the stove, thereby reducing the negative pressure to within its limits. When the wind speed
decreases the stabiliser will close to return the full negative pressure of the flue to the stove.
When the stove is commissioned the negative pressure within the stove is measured and the
stabiliser is adjusted to suit the characteristics of the flue, ensuring it gives the optimum
control.
If the chimney draught is excessive, a secondary draught stabiliser (barometric damper) may
be installed to the first section of flue pipe. This will be set to open when the stabiliser on the
stove has fully opened. A wind “smoothing”cowl may also be fitted to the flue terminal as
wind blowing across the flue terminal will increase the negative pressure within the flue proportionately to the wind
speed.
If the chimney has any downdraught tendency, due to its position in relation to nearby obstacles, an anti-downdraught
cowl must be installed on the chimney or the chimney height may have to be increased.
Any smell of flue gases within the house should be investigated immediately.

Ventilation
The ventilation to provide the stove with air has to be regarded as an integral part of the
flue system, because unless the air passing through the flue is replaced with equal
amounts of air entering the house, the flue will cease to function. The cooler the outside
temperature and the harder the stove is working to maintain the required temperature
inside, the cooler the incoming air and the greater its flow. Strategically positioned,
correctly sized and baffled vents will avoid any discomfort from draughts in the room. If
the vent is directly behind the stove then an internal baffle is recommended.
Any room or space containing an appliance should have a permanent ventilation
opening of free area at least 550mm sq. for each kW of rated. In older dwellings, pre-
2008, with an air permeability which is greater than 5.0m3/hr /m2the first 5Kw may be
ignored.
The Flue and Connections
Bends in flue pipe
Top exit
A flue shall have no more than four bends, each providing a maximum change of direction of 45°, there should be not
more than two of these bends before an access point for sweeping and two between a sweeping point and the flue
terminal.
On top exit stoves, ideally, the flue should rise vertically 1 meter before the first bend. It is however permissible to
have a bend no greater than 45° from the top flue outlet, or off the top of a “T” pipe, as long as it does not adversely
affect the flue draught.
Back exit
For a rear-outlet application using a T pipe, this should be treated as two 45º bends. If a “T” piece is to be used, the
horizontal flue run from the back outlet of the stove shall only be used to connect the stove to a “T”pipe and shall not
be more than 150mm in length.
If, due to the location of the stove, the horizontal run is marginally greater than 150mm then it permissible as long as
it is not detrimental to the flue draught requirements of the appliance. It must be noted that the flue draught will take
longer to establish the greater the horizontal length of flue and the sooting up of the glass on lighting will be greater.

Ideal Installation
Ideal Installation
Flue Terminations
Chimney cowls
The chimney cowl is an important part of the installation and can be often ignored.
A cowl normally serves more than one purpose.
1) It prevents rain entering the chimney system which will result in poor chimney operation and potential
damage to the appliance.
2) It can prevent birds nesting resulting in partial or blocked chimneys.
3) Most important it can act as a stabilizer in windy conditions.
Different types of cowls produce different conditions which will affect the negative pressure within the chimney
system. Great caution must be taken when choosing the cowl as an incorrect choice can result in poor stove operation.
Some anti down draught cowls work by inducing up draught which can seriously affect the combustion within the
burner and may even cause damage to the catalyser.
It is as important to fit the cowl correctly to the flue termination. All installations of this type should have a chimney
pot fitted to the top of the chimney. The flue liner should be brought to the top of the chimney pot with insulation
between the liner and pot.
Minimum of 4m
total flue height
Cowl to prevent
ingress of rain, birds
and/or to assist with
flue stabilization
Flue liner support collar
Weatherproof chimney capping and pot
Sound chimney brick work
Stainless steel liner
Flexible to single wall adapter
Register plate preventing the escape of
heat, positioned as low as practicable to
aid convection
Access for cleaning
Sufficient clearance behind
stove for maintenance
Hearth plate laid on level and stable
supporting hearth

Fuel and Fuel Oil Storage
All the stoves are calibrated for commercial Class C2 kerosene to B.S. 2869: suitable for vaporising pot burners.
Type of Tank
We strongly advise not to fit a second-hand oil tank ascontaminated fuel may do irreparable damage to the installation
and as it is impossible to determine whether or not an oil tank is free from contaminates by visual inspection.
A polyethylene tank, will never rot or rust, are maintenance free and it is possible to render them inconspicuous with
suitable permanent screening.
All tank and oil supply pipe installations should follow BS 5410: Part 1: 1997.
An isolating valve must be fitted directly to the tank outlet, allowing for the maintenance of the other components
in the pipeline.
A metal bowl oil filter mounted to allow adequate room for the removal of the sediment bowl and filter element
without difficulty should be fitted in the pipeline to the property. We recommend a replaceable cartridge filter with
a water separation bowl is installed.
Before the pipeline enters the building, a remote acting fire valve should be fitted which will cut
off automatically the oil supply in the unlikely event of a fire within the property.
A manual isolation valve should be positioned as close to the stove as possible to enable all supply to be
turned off for stove maintenance and if the appliance is to be out of service for more than a few weeks.
Where the stove is positioned higher than the fuel storage tank, an oil lift pump with integral reservoir will be required.
Where the stove is positioned to give a head to oil greater than 3.5 meters a constant level valve should be fitted.
Tiger loop systems are not suitable.

Electric Ignition
The electric ignition system operates by heating a ceramic electric heating element positioned 2mm from the bottom
of the burner. Oil entering the burner is heated to its ignition temperature by the heating element. The element is
energised for the period that the ignition button is pressed, between 30 seconds and a minute.
Common reasons for ignition to fail
Electrical cable not connected.
Oil supply switched off.
Burner has large amount of oil in the base.
Stove not level.
Igniter leads at the control box poorly connected.
Ceramic element touching the base of the burner.
Stove and burner must be level
If the oil burner is not level as oil enters for ignition it will flow away from the
igniter. This oil will build up until it finally reaches the igniter. This will result in long
ignition times and excessive oil at ignition.
Adjust the levelling feet in the legs of the stove.
Excessive oil will cause large flames, soot and very noisy operation.
Oil Metering Valve
The oil metering valve is set to give the correct flow rates before being fitted to the stove and will not normally require
further adjustment. Any but a small adjustment should be regarded as an indication of a fault of the fuel supply, or of
a flue system giving an incorrect negative pressure within the stove, and these should be examined thoroughly before
attempting to re-calibrate the oil metering valve.
The oil metering valve performs three operations within its main body; it regulates with a float valve the depth of oil
held, it meters with an adjustable outlet the fuel supplied to the burner, and its safety float valve will isolate the fuel
should the levels within the valve body become too high.
The safety float will cause the arming lever to “trip” whenever the fuel levels become too high, but severe vibration
can cause ripples on the fuel surface to lift the float, and because of this it is possible for the vibration set up by heavy
passing traffic to shut off the valve. Having “tripped”, resetting the arming lever may need to be done several times
before the fuel level within the valve falls sufficiently to allow reliable operation.
The firing rate of the burner is regulated by the oil metering valve and having set the extremes of low and high firing
as detailed in the commissioning instructions, the firing rates are proportioned as indicated by the indices 1-6 on the
valve top when aligned to by the control knob.
Most common problems
The oil control is a very reliable control system. If a problem with the oil flow is suspected it is very unlikely to be the
control valve.
The most common reason for poor flow rates will be air trapped within the oil supply pipe or the oil valve float control
stem. If an air lock is suspected the oil line should be disconnected from the oil valve and at least 1 litre of oil allowed
to flow after no air is present.
If an air lock is suspected in the oil control valve, remove the top plate mounting screws and press the float assembly
to the base of the oil control for 4-5 seconds, this will fully open the oil level inlet needle releasing trapped air.

Toby valve
CI valve

Flue Pressure Adjustment
The flue creates the negative air pressure within the stove which draws the air into the burner. For the correct
operation of the burner this air flow must be proportioned to the firing rate of the burner.
The chart illustrates the required negative air pressures relative to the burner settings, with the shaded band giving
the tolerance within which the burner will give satisfactory performance. The stoves are equipped with pressure test
points which will give the actual pressure within the stove, but it is not possible to verify the pressures to enable the
correct adjustment of the draught stabilizer without a suitable manometer. The pressure must be tested within the
stove as flue draught readings taken in the flue, are after the stoves stabiliser, and will give an incorrect reading.
We recommend the Dwyer 460 Air Meter is used when taking flue draught readings as it is small, light and easy to use.
Draught Requirements Belfort and Savoy
Maximum
0.065 inches WG / 15 Pa
0.035 inches WG / 8 Pa
Minimum
Note: This is not a water gauge
used to measure gas pressure.
Possible smoke and
soot formation in
these areas
Inches water gauge

Draught Requirements Burgundy
0.075inches WG / 17 Pa
0.035 inches WG / 8 Pa
Note: This is not a water gauge
used to measure gas pressure.
Minimum
Maximum
Inches water gauge

Draught Stabiliser
The flue stabiliser works by opening to provide an additional air supply to the flue
whenever the flue’s negative pressure reaches its upper limit and so checks any
rise beyond this limit to maintain the correct negative pressure within the stove.
This system of flue control is universally accepted as both effective and reliable.
Excessive negative pressure at low fire (No1)
Soot build up (for example overnight).
Soft and hard carbon build up within burner.
Damage to catalyser.
Damage to ignition system.
Smell of oil vapour from overheated oil supply components.
Low negative pressure at low fire (setting No1)
Vaporisation slow at lighting resulting in sooty glass.
Soft carbon build up within burner.
Excessive chimney draught at high settings
Poor flame effect.
Noisy operation.
Damage to catalyser.
Damage to ignition system.
Hard carbon build up within burner.
Lack of heat from the stove.
Poor chimney draught at high settings
Sooty interior.
Carbon build up within burner.
Lack of heat from the stove.
Pre-Commissioning Checks
Commissioning should not be undertaken if the wind is abnormally high or blustery, nor should it be undertaken by
anyone without suitable experience, testing equipment and working knowledge of the relevant standards and
regulations.
The customers who will operate the stove are an essential component of any installation. Ensuring they understand
the operation of the stove, its controls and what to expect from the installation, whether simple or complex, is
probably the most important single aspect of commissioning. Someone who understands never queries a satisfactory
stove but will tell you when something actually is wrong.
The installation should be inspected to ensure the work is complete and the workmanship satisfactory. The
commissioning engineer may be held responsible for any faults with the installation that would have been apparent
at the time of commissioning. No stove should be signed as commissioned if any part of the installation does not
comply with the relevant standards and regulations or requirements of these instructions.
The oil tank should be examined to confirm there is a supply of the correct grade of oil, that a filter and working
isolation valve are fitted. Having verified that the oil pipe work to the stove is complete and that the fire valve is
opened, the tank isolation valve should be opened and the pipe work inspected for leaks. The pipe into the inlet of the
metering valve should be uncoupled, and a minimum of one litre of oil collected into a suitable receptacle. If dirt,
water or air bubbles are present in this sample additional oil should be allowed through the pipe work until it is free
from contaminates. The fuel pipe work should be reassembled.

Note: air within the oil supply system or oil control valve will affect the ability of the oil control valve to allow the
correct flow rate. If an incorrect flow rate is suspected, inspect the oil control valve and supply line for air.
The draught stabilizer at the rear of the stove should be examined to ensure it opens and closes freely before lighting
the stove.
The stove’s combustion pressure testing point located.
Belfort: This is a screw fitted in the flue blanking plate which can be removed to insert the steel tube from the draught
gauge.
Savoy: Lift the breather tube out of the oil control valve and attach the draught test gauge to this to take the reading,
the other end of this tube remains within the body of the stove.
Commissioning
Remove the fuel effect before attempting commissioning.
Following the lighting instructions relevant to the stove being commissioned light the stove.
Note: Do not light the burner if oil is present in the burner base. Remove this oil before lighting.
Shortly after the stove is lit a stove air pressure reading should be taken and the pressure monitored at fifteen minutes
intervals to ensure the stove and flue are operating safely with sufficient air. As the stove and flue warm, the supply
of air being induced into the burner will increase, and it will be possible to raise the stove’s firing rate progressively
until the stove is running at its maximum output.
Note: do not increase oil flow rate to the point where smoke is produced.
The entire Stove, flue should be allowed to reach normal operating temperature. Depending on the flue system this
may take up to 1 hour.
Note: Commissioning without the system at operating temperature will probably result in you, the engineer, returning
to correct the commissioning at a later date.
Reduce the control setting to No 1 (low setting, the resistance before the
control valve goes “click off” is the ideal point).
After 5-10 minutes take a draught reading. This reading should be within
the requirements of the stove.
If the draught readings are higher or lower than required adjust the stoves
stabiliser so the correct reading is obtained by winding in (clockwise) to
increase or out (anti-clockwise) to decrease the counter balanced weight
on the stabiliser.
Once the correct low fire chimney draught has been achieved turn the stove to high fire, No 6, progressively over 5
minutes.
Wait 10-15 minutes for the chimney draught to stabilise.
Adjust the draught stabiliser weight so the chimney draught does not exceed the maximum required. If the draught
cannot be achieved for high fire see section reducing high fire flow rates.

With the chimney draught settings correctly set the oil flow rates need to be checked. This is normally checked by the
visual size of the flame it is not usual to disconnect the feed pipe to the burner and do a timed flow test.
Flow Rates
Model
Min cc/m
Max cc/m
Belfort
3
9.7
Savoy
4
16
Burgundy
4
21
No assessment of flame size or pattern should be made until the stove and flue have reached full operating
temperature and the correct negative pressure (chimney draught) within the stove has been achieved.
All adjustments to the oil metering valve should be followed with a period of undisturbed running before making any
assessment and several minutes should be allowed for the flue draft to stabilise after adjusting the flue stabilizer.
Low Fire (Minimum flame size)
Flue draught set at the requirement for low fire No 1 setting e,g. 0.04”wg
The catalyser body will glow brightly, with the only visible flames being horizontal blue translucent jets dancing
between the catalyser and the holes in the burner cylinder wall. No flames from the top row of holes.
The following flame size diagrams are to assist with correct adjustments.
If the flame size is larger than this decrease low fire flow rate, if the flame size is smaller increase the oil flow rate.
(See adjusting screw position on the oil valve in previous pictures).
Do not adjust the low fire screw more than 1/4 turn at a time before allowing burner to settle. Check the flame pattern
again and adjust again in the same manner if required.

Oil flow rate to low
If the oil flow rate is too low insufficient heat will be
produced to vaporise the oil entering the burner, this will
result in the fuel being burnt as liquid which will wick from
the bottom of the burner creating smoke. The same
symptom can occur with excessive chimney draught at low
fire as the amount of air passing through the burner will cool
the burner preventing vaporisation of the fuel.
Maximum flame size (no 6 setting)
The maximum flame size, depending on the chimney draught
requirements, should not touch the top of the stove. The size of the
flame depends on the chimney draught produced.
If insufficient draught is created a tall long lazy yellow and
sometimes sooty flame will occur.
If excessive the flame size will be small and noisy within the burner.
A good guide is that the flame should not pass higher than the top
of the glass in the door. If a poor flue draught occurs the flame at
maximum flow rate should be adjusted to reduce the flow rate to
gain a correct maximum flame.
Solving Negative Pressure Problems
What to do if the chimney draught is too high at low fire.
There are two reasons chimney draught can be high at low fire.
1. The chimney is susceptible to increases of draught from external conditions such as wind.
If this is the case the flue termination position must be examined to confirm it is correct and a draught stabilising cowl
fitted.
2. Excessive negative pressure can occur with chimneys over 20ft (6 meters).
Utilize the draught stabiliser at low setting to reduce the chimney draught. This solution can only be used if the higher
heat settings of the stove are unlikely to be required.
In this case adjust the draught stabilizer to reduce the flue draught at setting 1 to 0.045” water gauge. Turn the control
knob to setting 6 maximum and reduce the high fire oil flow setting to decrease the flame size until a clean soot free
flame is produced.
A 90mm choke plate, FB237405, can be fitted under the flue collar which will reduce flue draught where there is a
high flue draught due to the chimney being tall. It cannot be used where the high flue draught is due to wind induced
conditions.
What to do if the chimney draught is too low at high fire setting.
This problem will only normally occur with poor flue construction or an unlined flue or short chimneys. The only
solution to this is to improve the chimney system or calibrate the high fire oil flow to reduce the flame size so it burns
cleanly.
As many stoves will never be run at high fire the reduction in the flame size on high is generally not a problem in
comparison to soot formation within the stove.

Once the stove has been adjusted and operating correctly the following points must be
checked.
1. The stove and the oil system should be examined for any evidence of oil leaks which may only occur when the
stove is hot.
2. The customer must be advised about the operation and the lighting procedure. If the chimney system is slow
in establishing a chimney draught the customer should be advised to leave the door open a crack for the first
few minutes and that soot may occur on the glass at lighting. This can be easily removed with a dry cotton cloth
or kitchen towel. If the door is left open a crack for the first few minutes on lighting the stove MUST NOT be
left unattended.
3. Advise the customer that if the stove is to be out of operation for more than a few weeks that the isolation tap
which should be located by the stove should be turned off, demonstrate this to the customer.
4. Ensure the customer understands that, like any heating appliance, the stove must be serviced annually. Failing
to do so could invalidate any warranty the stove may have. There is a page in these instructions where a record
may be kept.
5. Instruct the user never to operate the stove with the stove’s door open and that the user is aware of the
requirement of a suitable fire guard where children, the old or infirm may come into contact with the appliance.
6. The warranty registration form should be completed and the user advised to return it fully completed to ABGO.
7. All instructions are left with the user.
Commissioning Engineers notes
Record any unusual procedures taken: