Bubble CORNER OIL STOVE User manual

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USER INSTRUCTIONS
CORNER OIL STOVE
ISSUE 30-06-22
www.oilstoves.co.uk

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I
IN ND DE EX X
1-0 INTRODUCTION ...................... 2
1-0-1. W ARNINGS ............................................................... 2
1-0-2. G ENERAL I NFORMATION A BO T T HE S TOVE . ...... 3
1-0-3. S PACING F ROM C OMB STIBLES . ............................ 3
1-0-4. F IREG ARDING . ................................................ 3
1-0-5. W ARNING . ............................................................... 3
1-0-6. D OOR G LASS . ........................................................... 3
1-0-7. F ASTENING D OWN . ................................................ 3
2-0 OUTLINE OF CHIMNEY PROBLEMS . 3
2-0-1. D OWNDRA GHTING ......................................... 4
2-0-2. A TMOSPHERIC CONDITIONS . .......................... 4
2-0-3. S MMARY O F C HIMNEY P ROBLEMS ................ 4
2-0-4. M IN C HIMNEY H EIGHT F OR H IGH F IRE . .............. 4
2-0-5. M INIM M H EIGHT F OR L OW F IRE R NNING ...... 4
3-0 FUEL SUPPLY PROBLEMS ............. 4
3-0-1. W AXING .................................................................. 4
3-0-2. C HANGING O IL P RESS RE A T T HE S TOVE . .......... 5
3-0-3. P OOR OIL FLOW PROBLEMS . .................................... 5
3-0-4. O IL FEED SET P . .................................................... 5
3-0-5. O IL LINE ................................................................. 5
4-0 HOW IT WORKS ...................... 6
4-9. T HE COAL KIT .............................................................. 6
4- 10. D ESCALING CONTROL .............................................. 6
4-11. S TOVE C OMPONENTS ................................................ 6
5-0 RUNNING THE STOVE ...............
5-1. O IL C ONTROL V ALVE D ETAILS ................................... 7
5-2. L IGHTING . ................................................................... 7
5-3. S TOVES WITH BOILERS .............................................. 7
5-4. C ONTROLS ON S TOVES WITH BOILERS ..................... 7
6-0 FAULT FINDING ...................... 8
W ATER C ONTAMINATION .................................................. 8
6-1. R ACING ......................................................................... 8
6-2. F L E VAC M .............................................................. 8
6-3. B RNER R NS SOOTY . ................................................ 8
6-8. O IL SMELLS ................................................................. 9
6-9. D EFLOODING A FLOODED POT .................................... 9
6-10. O IL LEAKS .................................................................. 9
.0 ROUTINE MAINTENANCE............ 9
8-0 WARRANTY ............................ 9
1-0 INTRODUCTION
1. As its name implies, the Corner Bubble has been
designed to fit into confined spaces.
2. A great deal of effort has gone into the
development of this stove and it has been
specifically designed for the narrow boat user.
3. The triangular shape allows the stove to be
fitted with minimal use of space, allowing easy
access past it, better integration with internal
decor and designed as an integral part of the boat,
not just another add on.
4. The triangular base acts as a built in drip tray
and positioning device to allow adequate clearances
for air to circulate around the heater panels and
convert heat into the boat.
5. The top of the stove can be used for warming and
cooking.
6. The stove can also be supplied with or without a
coal kit.
7. Standard deck flanges and traditional chimney
extensions can used above deck providing a suitable
anti downdraught terminal is fitted.
8. The dry stove will provide space heating via
convection together with limited cooking facilities
on the top plate.
8a. The boiler version will provide the same with the
addition of hot water and central heating.
9. We have found from our now extensive
experience of existing installations that in most
cases, existing Bubble 1 users only have to run their
stoves on the lowest setting, even through the very
coldest of weather.
With this in mind and the increasing cost of oil, we
have designed the corner bubble using a more
economical burner which will run at 4ccs (.24 of a
litre per hour) on minimum firing rate and 10ccs (.6
of a litre per hour) on maximum firing rate equating
to a consumption per 24 hours continuous running of
5.76 litres low fire and 14.4 litres high fire.
10. The stove incorporates a combustion air
restrictor (C.A.R.) as opposed to the more
traditional swinging barometric damper and also
features a front mounted oil control valve with easy
access to the control knob.
1-0-1. W ARNINGS
1. Never try to relight a hot stove; wait until it has
cooled down, hot oil vapour is explosive.
2. Never try to light a flooded pot, when attempting
to light a stove make sure that the pot is not
flooded with oil, by looking into the base of the
burner.
If it is flooded remove the excess oil as per
instructions in the fault finding section.

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1-0-2. G ENERAL I NFORMATION A BOUT T HE S TOVE .
1. The stove is a space heater, which burns diesel oil
in a controlled manner utilizing a chimney to
discharge the products of combustion.
2. This stove is designed to run with or without a
coal fired effect kit which when fitted will partially
create the effect of a coal fired stove with all the
pleasure that this can bring, but remove the need
to constantly refuel and de ash.
3. Just like a solid fuel stove, coal effect will only
be available when the stove is running at its higher
output settings.
1-0-3. S PACING F ROM C OMBUSTIBLES .
1. The stove is designed to fit into a suitable
fireplace, which in most cases will be triangular in
shape.
2. The fireplace must be manufactured from
fireproof materials.
3. For spacing from combustible materials the stove
must be treated in the same way as a SOLID F EL
APPLIANCE and as such, whilst it is running, will
become very hot and must not be touched.
1-0-4. F IREGUARDING .
4. To prevent the risk of injury through burning a
suitable fireguard must be fitted and adequate
provision made for guarding the exposed flue pipe
where a potential danger is presented.
1-0-5. W ARNING .
5. The stove must not be operated with the glass
front door opened or cracked.
1-0-6. D OOR G LASS .
6. The door glass may require light cleaning
occasionally depending upon the continuous running
time of the stove.
1-0- . F ASTENING D OWN .
7. The stove must be securely fastened down so
that it can resist impact or collision and it must be
level in both directions.
2-0 OUTLINE OF CHIMNEY PROBLEMS
See Fig 2 for preferred set up.
1. The fitting of any appliance, solid fuel, wood or oil
burning, requiring a naturally generated chimney
vacuum, into a traditional narrow boat creates
specific problems, which are mainly concerned with
flues amongst other things.
2. Normally when fitting stoves into houses or
bungalows although there are many problems,
generally if the chimney comes out of the highest
point of the property (normally the ridge of the
highest roof) stoves will work well in most normal
cases.
3. With boats the two major problems are -:
They move
By the nature of their shape, must have relatively
low chimneys.
4. Whilst on the move the boat will travel through a
variety of changing countryside which will have a
dramatic effect on the atmospherics at the
chimney terminal.
5. An example of this would be the transition of a
boat down through a lock where the wind conditions
at the outlet of the chimney will change
dramatically as the boat descends into the lock to
the lower water levels, severe down draught could
occur.
6. Great care must be followed with chimneys on
boats and it is critical to observe the following
instructions.
7. To ensure satisfactory performance from the
B BBLE stove chimneys must be capable of
maintaining a constant steady vacuum of not less
than .04" Water Gauge when running on the high
fire position and not less than .02" Water gauge
when running on the low fire position; at all times
and in all terminal conditions.
8. This obviously means that it is essential to fit a
suitable anti down draft device to the terminal of
the chimney.
10. The chimney vacuum is directly proportional to
the following factors:
The height of the chimney.
The resistance of the chimney. (Bends. terminals.
etc.)
The cross sectional area of the chimney (diameter)
The Flue gas temperature.
The availability of replenishment air (ventilation)
The integrity of the chimney (does it leak)

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2-0-1. D OWNDRAUGHTING
1. The contents of the chimney are equal to a
cylinder of hot air which depending upon its
temperature and volume wants to move vertically,
with some force.
2. Stopping it moving vertically. Are resistance such
as?
Smoothness of internal wall of chimney.
Chimney bends.
Chimney terminals.
Lack of ventilation. (Air going out must be replaced
by air coming in).
2-0-2. A TMOSPHERIC CONDITIONS .
Atmospheric conditions at the chimney terminal
that could be affected by where the boat is
moored.
The boat is moored in a position near to high
buildings, high trees or higher surrounding land and
downdraughting is occurring.
This can be a serious problem, if there are any of
the above in the immediate location (within 100 –
200 yards) of the boat.
nder changing and fluctuating wind conditions
downdraghting will occur.
If you have to moor in situations where the above-
mentioned criteria exist, and the stove is running,
you must let it go out.
Don’t leave the appliance running and unattended.
Don’t leave the appliance in running overnight.
2-0-3. S UMMARY O F C HIMNEY P ROBLEMS
1. Hot air in large volumes = plenty of chimney pull.
(Vacuum)
2. Cold air in small volumes = little chimney pull.
3. Bends and chimney terminals create resistance to
hot air flow thus reducing potential maximum
chimney vacuum.
4. Because it is not possible to use high chimneys it
is critical to observe the following instructions.
5. The chimney system must be designed so as to be
easily extendible.
6. The chimney can have a minimum inside diameter
of 90mm.
7. Outside the boat, the chimney should be twin wall
and insulated to keep the flue gasses as hot as
possible.
8. The chimney and stove must be adequately
guarded to prevent the risk of injury through
burning.
9. When moored extend the chimney if you want
the appliance to be run at its maximum output, if
you are happy with the output of the stove running
at up to setting 3, then it will not be necessary to
add the chimney extension.
10. The chimney terminal must be fitted with a
terminal that will resist down draughting in all
terminal conditions.
2-0-4. M IN C HIMNEY H EIGHT F OR H IGH F IRE .
1. MINIM M HEIGHT FOR HIGH FIRE R NNING
IS 2.2 METRES (long extension)
2. When cruising reduce the chimney height and
turn the stove down to match the reduced chimney
height.
3. Do not cruise with the stove turned up on full
output.
2-0-5. M INIMUM H EIGHT F OR L OW F IRE R UNNING
1. MINIM M HEIGHT FOR LOW FIRE R NNING
IS 1.8 METERS. (Short extension)
2. When mooring pay particular attention to the
surroundings and remember that close objects such
as high buildings, trees or adjacent walls may well
cause down or up draughting.
3. Typical flue set ups can be seen in the
illustrations showing the flue pipe fitting into a
standard cast iron deck flange topped of with a
traditional twin wall chimney, terminating with a
rotating cowl.
3-0 FUEL SUPPLY PROBLEMS
(Fig 1 Illustrates preferred set up.)
There are several problems relating to fuel supply
of which you need be informed.
WAXING - TRIM – ROLL
3-0-1. W AXING
1 Diesel has a nasty habit of waxing up when the
temperature gets down to or lower than freezing,
This waxing or thickening alters its flow
characteristics and consequently what was an

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adequate fuel feed supply can rapidly turn into an
inadequate one when the temperature starts to fall.
2 The worst scenario is fuel feed pipe 50-60 feet
long in 8mm dia. pipe.
3 The best-case scenario is a fuel pipe 4 feet long
in 15mm dia with good insulated lagging.
3-0-2. C HANGING O IL P RESSURE A T T HE S TOVE .
1. Because of the layout of a boat it is not possible
to provide a high pressure oil supply, in most cases a
pressure head of out 18" is all that is available and
as the tank empties this head of pressure will
reduce, and may alter the flow characteristics of
the fuel.
2. In some cases this head can also be affected by
the ballast or trim of the boat, the changing level
of the boat due to addition removal of ballast, fuel
or water can have an effect on the position of the
oil tank in relation to the stove and the angle at
which the oil line is established.
3. Take great care to monitor all the effects of the
different ballast and trim possibilities.
Make sure that adequate oil feed is always available
at the outlet end of the fuel pipe before it enters
the oil control valve at the stove.
3-0-3. P OOR OIL FLOW PROBLEMS .
1. Bubble stoves have a very accurate oil flow
control valve, which is set up to give a precise oil
flow at high and low fire.
3. For example the stove is flow rated at 3cc per
minute on low fire and 6cc per minute on high fire.
a. The test flow through the supply pipe should be
well in excess of the maximum flow rate of 6ccs
even when the temperature is below freezing and
the boat is adversely trimmed.
3-0-4. O IL FEED SET UP .
1. If the stove is fitted forward at the bow end of
the boat, to keep the oil feed supply as short as
possible, a forward mounted oil tank is
recommended.
3. The tank should have insulating material around it
for protection from the effects of cold weather.
4. Always add a suitable proprietary antifreeze
additive to the stove fuel for wintertime running.
5. The tank should have conveniently sized filler and
it must be vented.
6. The tank should have:
6-2. An isolation valve before an easily replaceable
cartridge filter.
3-0-5. O IL LINE
1. The oil feed line starts after the fuel filter and
proceeds to the point of entry, where the oil line
goes into the cab of the boat, at this point there
will be a remote sensing fire valve which is designed
to do two jobs
1. Shut off the oil supply should a fire occur near to
the stove. (Fire safety valve)
2. Shut off the oil supply should the flame be blown
out. (Flame failure device)
This valve has a reset button, which allows you to
re-cock the valve should it trip off.
2. The fire valve has a capillary tube on the end of
which is a temperature sensitive phial; the phial is
fitted into 15mm pipe clips in front of the drip tray
on the fireplace hearth, directly in front of the
combustion air restrictor.
3. Should the wind ever blow down the chimney, hot
air flowing out of the combustion air restrictor will
trip the remote sensing valve and automatically
close down the fuel supply to the appliance.
In this case the valve is acting as a flame failure
device.
The oil control valve also acts as a further safety
device in as much as it cuts off the supply of fuel
after a flame out.
4. The sensing phial will be visible through the
bottom of the fender.
5. If the bubble stove is fitted up to the first
bulkhead the isolation valve may well be fitted
outside the cabin or saloon of the boat and you
should make sure that you know where it is and how
to operate it.
6. Because of the high risk of fuel contamination
with water, we strongly recommend the fitting of a
high volume water trap in the oil supply line.
We have had to attend breakdowns on several
occasions where the diesel tank has had 50% water
contamination.

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7. If there is a water trap fitted, make sure that
you are fully familiar with its operation and service
requirements.
8. In case of emergencies, a suitable and
serviceable fire extinguisher should always be
readily accessible near to the appliance.
4-0 HOW IT WORKS
1. The stove generates heat from burning oil mixed
with air in a vaporizing pot located in the bottom of
the stove.
3. Once lit, oil goes into the pot at a steady and
controlled rate via gravity flow, metered by the
OIL CONTROL VALVE the oil flow can be
controlled from minimum to maximum or any setting
in between determined by where you set the oil
flow control knob.
4. Air is sucked into the pot by the natural action of
the negative pressure in the chimney and to allow
the chimney to work correctly it is essential that
you have adequate, unrestricted ventilation into the
area where the stove is situated.
5. The amount of oil that can be successfully
burned is directly proportional to the amount of air
that the chimney can draw into the pot and so to
achieve adequate combustion a balanced and
appropriate flow of both oil and air is required.
6. As stated earlier, the air side of the equation can
vary wildly with the changing performance of the
chimney and so to compensate for this the appliance
has a built in combustion air restrictor designed to
maintain a steady and constant supply of combustion
air to the burner.
7. The flow of oil into the pot can be adjusted via
the knob on top of extension rod rising up from the
oil control valve.
8. With the increased flow of oil, extra heat is
generated, which in turn stimulates the chimney to
work harder and consequently draw more air into
the pot to maintain an adequate fuel air ratio.
4-9. T HE COAL KIT
1. The key to the success of the coal effect is the
patented coal support system specially developed
for use on B BBLE STOVES.
2. The coals are located on the coal support bars,
which are designed to glow red in the flame, passing
on the incandescence into the coals.
3. The front fret is designed to allow incandescent
glow and flicker through to add to the effect.
4. Care must be taken when positioning the coals on
the spikes.
5. The whole system is designed so that it can be
removed in its entirety without the need to disturb
the coals making routine leaning and servicing very
easy.
6. To remove it turn the stove off and when it is
cooled down, undo the front door knob, open the
door and lift it out using the front fret.
7. Take care not to drop any coals into the pot.
4- 10. D ESCALING CONTROL
NOTE WELL
The descaling lever must not be touched whilst the
stove is running; it gets very hot and if touched, will
cause severe burning.
10-1. The descaling device is situated behind the
left hand side panel, which has to be removed to
gain access.
10-2. After removal of the panel you will see a
brass tee piece where the oil line is connected to
the bottom of the pot.
10-3. Protruding out from the tee piece is a bent
lever, which is used for descaling carbon build up
from the inside of the oil inlet connection.
10-4. Rotate the lever occasionally to remove any
carbon build up at the point of oil entry into the
pot.
10-5. The descaling device has a gland packing nut
which must be tightened occasionally to stop oil
fume leak. The sealing gland will need to be replaced
every second year.
4-11. S TOVE C OMPONENTS
The stove has the following components, which can
be removed for cleaning or servicing.
The top frame x1
The stainless insert for the top frame x1
The small rear infill part of the stainless insert x1
The hot places x2
The side panels 1 x left and 1 x right hand sides

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The front fender
The top frame is secured to the top of the stove by
one m6 fastener.
The side panels fit at either side of the stove and
are fastened by two m6 countersunk fasteners.
5-0 RUNNING THE STOVE
1. We use different valves on dry stoves as opposed
to stoves with boilers.
2. We supply the appropriate literature packed in
each stove.
3. You must familiarise yourself with all aspects of
control detailed within the booklet.
5-1. O IL C ONTROL V ALVE D ETAILS
1. The output of the stove is regulated by the
amount of oil allowed to go into it and this function
is controlled by the:
OIL CONTROL VALVE (O.C.V.), which is situated at
the right hand side of the stove, behind the right
hand side panel.
On dry stoves the oil flow is controlled by turning
the knob anti clockwise from its off position.
The knob is located at the top right hand side of
the stove and is calibrated from off position (fully
clockwise) through 6 graduations to maximum.
5-2. L IGHTING .
Lighting the stove takes a little time and patience;
the following procedure should be adopted
Open the front door via the circular brass knob.
Remove the coal kit if it has been supplied with the
stove.
Remove the inner mesh catalyser
Remove the lower burning ring.
Turn the oil on at full rate and allow oil to flow into
the bottom of the pot to form a pool about the size
of a digestive biscuit and then turn the oil off.
DO NOT ALLOW ANY DEPTH OF OIL TO B ILD
P.
Light a small piece of firelighter (about the size of
a pineapple chunk) and place it into the centre of
the pot.
Replace the lower burning ring, the mesh catalyser
and the coal kit and then leave the door slightly
open whilst the firelighter gets the oil going.
You will notice the flame start to establish itself
and spread around the bottom of the pot, after one
minutes it will start to die down at this stage turn
the oil flow on to setting 1 and close the door.
The flame should then slowly change from yellow
into blue flame combustion and settle down to a
steady burn.
Watch the flame during and after the lighting
process and if it starts to grow and become yellow
turn the oil off immediately and wait until the flame
starts to die down, when the flame starts to die
down turn the oilontrol on to setting 1 and the
burner should then settle down into blue flame
combustion.
Note there may be the occasional growl or audible
vibration whilst the burner settles down into blue
flame combustion.
Do not turn the oil control knob up by any more than
one increment.
Allow 2 minutes for the burner to stabilize at each
adjustment.
5-3. S TOVES WITH BOILERS
1. Stoves with hot water boilers are run in exactly
the same way as stoves without.
There are extra controls, which are detailed in the
oil valve booklet supplied with the stove.
5-4. C ONTROLS ON S TOVES WITH BOILERS
1. There are extra controls provided on stoves with
boilers and these are as follows:
Looking at the stove from the front left to right
2. The first control is a black circular knob which
should be lifted to turn the oil on to the valve all
that is required is to lift the knob and release it.
See fig 4 in booklet (TRIP LEVER.)
(The oil trip mechanism will trip off, if the oil level
in the valve is disturbed by excessive boat
movement.)
3. The next control is the thermostat (See set
temperature in fig 9) to set the water temperature
fully clockwise is minimum temperature and fully
anticlockwise is maximum temperature. Experience

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will allow you to learn where to set this for your
own requirements.
4. The next control is a black circular knob, which
should be lifted to arm the safety thermostat, all
that is required is to lift the knob and release it.
(See fig 9 safety shut down bubble)
(If the water temperature gets over 80 deg C this
stat will shut the oil supply off and allow the stove
to go out.)
5. The next control is the oil flow control,
anticlockwise for maximum oil flow and clockwise
for minimum oil flow.
6-0 FAULT FINDING
W ATER C ONTAMINATION
A major problem on boats is water contaminated
fuel.
Because of changing temperature, condensation
droplets can build up on the inside of the fuel tank.
These droplets along with other sources of water
contamination can cause a serious problem if not
attended to.
Always keep an eye out for water in the oil.
Make sure that you check the filter bowl regularly.
If your stove is fitted with a Toby DVR oil control
valve, It can be drained off without removal from
the appliance.
The small drain screw is located at the bottom of
the valve.
6-1. R ACING
1. Audible vibrations generated by the flame caused
allowing by too much oil in the pot, too quickly.
1-1. Turn off the oil flow until the burner has
settled down to a steady burn rate and then turn
the fuel on again but don’t let the flame go out
otherwise the burner M ST be allowed to cool
down fully before a re-ignition is attempted.
6-2. F LUE VACUUM
1. The pot type burner is extremely sensitive to
flue vacuum variations.
2. Good combustion will not be possible unless our
instructions on chimneys and flue vacuum are
followed.
3. If the burner does not burn with a blue flame,
recheck the chimney vacuum and oil flow rate.
4. If the burner does not run well check that the
seals in the stove are good and that there is no
ingress of air into the appliance flue ways.
6. Check that the correct fuel oil is being used.
7. Check the levels.
6-3. B URNER RUNS SOOTY .
Comments made on this subject assume that the
appliance has been running normally for some time.
1. If the stove soots up this indicates that there is
not adequate air for blue flame combustion or there
is an excess of fuel.
1-1. Check that the chimney is working correctly.
(This means pulling enough air into the burner to
allow correct blue flame combustion to occur.
1-2. Check that the fuel is the correct type and
quality.
1-3. Check that the flow rates are correct.
2. Where burners are incorrectly installed and are
allowed to run at high fuel flow rates on low
chimney vacuums, long unsatisfactory yellow flame
combustion and bad sooting will occur.
2-1. To rectify this problem call your service
engineer.
3. Never switch from low settings straight up to
high settings, a longer burner life will be achieved if
the oil flow control knob is moved only by one
number at a time leaving approx. two minutes
between each setting change.
6-4. Burner does not light easily
Read the instructions in the lighting section of this
publication.
6-5. Oil will not enter the pot
All stoves
1. Is there oil in the fuel tank?
2. Has the fire valve tripped.
3. Has the isolation valve been accidentally turned
off?
4. Is the oil turned on at the oil flow control knob
on the valve?
6. Is the oil feed pipe from the valve to the pot
blocked. ( nlikely)

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(STOVES WITH BOILERS)
7. Has the oil trip lever tripped off?
8. Has the boiler stat tripped off?
6-7. Operating oil flow rates
OIL Flow rates in cc per minute.
min max
4cc 10cc
Oil Flow Rates In litres Per hour.
.24 litres .6 litres
Oil Flow Rates In litres Per 24 hours.
5.76 litres 14.4 litre
Oil Flow Rates In litres Per 7 x 24 hours.
40.32 litres 100.8 litres
To achieve optimum burner performance at these
flow rates you will need to have matching flue
vacuums as stated.
6-8. O IL SMELLS
Visual check on all joints for obvious leaks.
Check that the descaling lever packing gland nut is
adjusted.
6-9. D EFLOODING A FLOODED POT
If the stove is blown out by severe down draughting
oil will run into the pot to a depth of approx 15mm
and then stop. If this has occurred do not attempt
to light the pot until it has been de flooded.
To carry out this procedure you will need:
A small, leak proof plastic bag.
b. A small sponge.
A larger plastic bag for disposal of the residue.
A pair of disposable plastic gloves.
Put a small plastic bag into the stove and sponge
from the pot into the bag, when the excess oil has
been removed put the plastic bag and sponge into
another plastic bag and dispose of it.
6-10. O IL LEAKS
If the stove has blown out, flooded oil should not
leak from the pot, if it has leaked into the drip tray
it will have come from the descaling seal or the boat
could have been subject to heavy movement causing
the oil to splash around and leak through the air
holes in the side of the pot.
.0 ROUTINE MAINTENANCE
1. Every 4 weeks:
Operate the descaling lever by turning it completely
two or three times.
2. As required:
Clean inside of door glass.
3. Every eight weeks:
Clean the burner completely by removing all the
inner components as follows,
1. Open the front door via the circular brass knob.
2. Remove the coal kit if it has been supplied with
the stove.
3. Remove the inner mesh catalyser
4. Remove the lower burning ring.
Scrape the bottom of the pot clean and remove all
carbon build up.
Reassemble in the reverse order.
4. Every 24 weeks:
Tighten up the gland nut on the descaling device to
stop oil smells.
5. Once per year:
Have your service man replace or clean all the
filters in the oil supply line.
6. Every two years:
Have your service man clean out the filter and
check the function of all the safety equipment
associated with the stove, oil supply and plumbing
system.
Remove and clean out the oil supply pipe from the
valve to the pot.
7. As required:
Keep the Coals, Coal kit, and burner inners in good
condition, replace as necessary.
8-0 WARRANTY
1. Fill in the warranty form and returned it to us,
the information recorded on the warranty form
helps us to deal with any problems you may
encounter.

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2. Where we do not hold returned warranty forms
replacement parts would only be issued when we are
sure that the appliance has not been damaged by
improper use or incorrect installation.
3. The warranty covers PARTS ONLY for a period
of ONE YEAR and is conditional upon all the
requirements of our installation instructions being
fully adhered to.
4. LABO R, TRAVELING OR CONSEQ ENTIAL
LOSS OR DAMAGE IS NOT COVERED.
We will attend to any legitimate warranty claims
(which must be made in writing) but we will make a
charge for travelling and labour at cost.
4-1 Glass is not covered under the warranty.
5. ARRANGE FOR SERVICE visits with a service
engineer.
COPYRIGHT HARWORTH HEATING LTD 20.10.00
This publication must not be copied, without written
permission from the authors.
This product is subject to continuous development
and improvement, it is consequently acknowledged
that due to this process there may be some
omissions and errors.
This publication is intended only to assist the
reader in the use of this product and therefore
Harworth Heating Ltd shall not be liable for any
loss or damage whatsoever arising from the use of
any information, error or omission found in this
publication.
Only approved personnel, WHO HAVE BEEN
S ITABLY TRAINED, must carry out maintenance
on this product.

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FIG 1 Preferred Oil Layout.

12
FIG 2 Flue Layouts