Hunter Stoves Hawk 3 MKI User manual

JINHCR03 RevB 22/06/2012
HAWK 3
CleanBurn Stove
Installation and Operating Instructions

JINHCR03 RevB 22/06/2012
HAWK 3
Technical Specification
Appliance Mass
62 kg
Total Efficiency
80.5 %
Nominal Heat Output
4.0 kW
Mean CO Emission (@13% O2)
0.24 %
Mean Flue Gas Temperature
227 °C
Flue Gas Mass Flow
3.9 g/s
This appliance is not for use in shared flue
This appliance is suitable for intermittent burning

JINHCR03 RevB 22/06/2012
General Guidance
It is important that your stove is correctly
installed as Hunter Stoves cannot accept
responsibility for any fault arising through
incorrect use or installation.
These instructions cover the basic principles to
ensure satisfactory installation of the stove,
although detail may need slight modification to
suit particular local site conditions.
The installation must comply with current
Building Regulations, national and European
standards, Local Authority byelaws and other
specifications or regulations as they affect the
installation of the stove.
The Building Regulations requirements may also
be met by adopting the relevant
recommendations in the current issues of
British Standards BS 8303 and BS EN 15287-1.
COMPETENT PERSONS SCHEME
Hunter Stoves recommend that this stove is
installed by a member of an accredited
competent persons scheme e.g. HETAS.
If the installer is not a member of a competent
persons scheme, it is a legal requirement to
notify your local building control body in
advance of any work starting.
CO ALARMS
Building regulations require that whenever a
new or replacement fixed solid fuel or
wood/biomass appliance is installed in a
dwelling, a carbon monoxide alarm must be
fitted in the same room as the appliance.
Further guidance on the installation of the
carbon monoxide alarm is available in BS EN
50292:2002 and from the alarm manufacturer’s
instructions.
Provision of an alarm must not be considered a
substitute for either installing the appliance
correctly or ensuring regular servicing and
maintenance of the appliance and chimney
system.
HEALTH AND SAFETY PRECAUTIONS
Special care must be taken when installing the
stove such that the requirements of the Health
and Safety at Work Act are met.
HANDLING
Adequate facilities must be available for
loading, unloading and site handling.
FIRE CEMENT
Some types of fire cement are caustic and
should not be allowed to come into contact
with the skin. In case of contact, wash
immediately with plenty of water.
ASBESTOS
This stove contains no asbestos. If there is a
possibility of disturbing any asbestos in the
course of installation then please seek specialist
guidance and use appropriate protective
equipment.

JINHCR03 RevB 22/06/2012
METAL PARTS
When installing or servicing this stove, care
should be taken to avoid the possibility of
personal injury.
MODIFICATION
No unauthorized modification of this appliance
should be carried out.
SAFETY
WARNING –This appliance will be hot when in
operation and due care should be taken. The
supplied operating tool or gloves may be used
to open the door and operate the air controls.
AEROSOLS
Do not use an aerosol spray on or near the
stove when it is alight.
FIREGUARDS
Always use a fireguard in the presence of
children, the elderly or the infirm. The fireguard
should be manufactured in accordance with
BS8423 –Fireguards for use with solid fuel
appliances.
DO NOT OVER-FIRE
It is possible to fire the stove beyond its design
capacity. This could damage the stove so watch
for signs of over-firing.
If any part of the stove starts to glow red, the
stove is in an over-fire situation and the
controls should be adjusted accordingly.
Never leave the stove unattended for long
periods without first adjusting the controls to a
safe setting.
Careful air supply control should be exercised at
all times.
FUME EMISSION
WARNING NOTE
Properly installed, operated and maintained,
this appliance will not emit fumes into the
dwelling. Occasional fumes from de-ashing and
refuelling may occur. However, persistent fume
emission is potentially dangerous and must not
be tolerated.
If fume emission does persist, then the
following immediate action should be taken: -
Open doors and windows to ventilate the
room and then leave the premises.
Let the fire go out.
Check for flue or chimney blockage and
clean if required.
Do not attempt to re-light the fire until the
cause of the fume emission has been
identified and corrected. If necessary, seek
expert advice.
The most common cause of fume emission is
flueway or chimney blockage. For your own
safety these must be kept clean at all times.
ADVERSE WEATHER
In a small number of installations, occasional
local weather conditions (e.g. wind from a
particular direction) may cause downdraught in
the flue and cause the stove to emit fumes.
In these circumstances, the stove should not be
used. A professional flue installer will be able to

JINHCR03 RevB 22/06/2012
advise on solutions to this problem (e.g. anti-
downdraught cowl).
Do not fit an extractor fan in the same room as
this appliance.
CO ALARM
Your installer should have fitted a CO alarm in
the same room as the appliance. If the alarm
sounds unexpectedly, follow the instructions
given under “Warning Note” in the Fume
Emission section.
IN THE EVENT OF A CHIMNEY FIRE
Raise the alarm
Call the Fire Brigade
Close appliance air controls
Move furniture, ornaments etc away
Place a fireguard in front of stove
Check the chimney breast for signs of
excessive heat.
Ensure the Fire Brigade can gain access to your
roof space in order to check for fire spread.
Assembly
Instructions
FLUE COLLAR AND BLANKING PLATE
Wind the eight M6 studs supplied into the fixing
holes in the flue collar and blanking plate until
finger tight.
Place a flue outlet gasket in position on the top
plate of the stove and lower the flue collar or
blanking plate (as required) on to the stove top,
taking care to line up the studs with the fixing
holes.
Secure in place using the M6 nuts and washers.
Slide the remaining gasket on to the studs of
the flue collar or blanking plate and secure in
place on the back plate. Unless the optional flue
damper is being fitted, blank off the damper
handle holes in the flue collar using the two M8
coach bolts.

JINHCR03 RevB 22/06/2012
FIRE BRICKS
The Fire Bricks, in this appliance, are factory
fitted. The following set of diagrams shows the
removal sequence that you will need to employ
when servicing your Hunter Stove.
Side Bricks
Remove the Ashpan, Riddling Bars. Slide out
both Side Plates.
Slide the base of the Side Brick towards the
centre of the stove and remove.
Rear Brick
Pull the top edge of the Rear Brick forward and
lift the brick out of the Stove.
BAFFLE /THROAT PLATE
Lift the Baffle and slide to the left. When the
right-hand side of the Baffle clears the Baffle
Support, lower the Baffle into the Fire Box and
remove.
To assemble the stove, simply reverse the
above procedure.

JINHCR03 RevB 22/06/2012
Installation
Instructions
CHIMNEY
The chimney height and the position of the
chimney terminal should conform to Building
Regulations.
Check that the chimney is in good condition,
dry, free from cracks and obstructions.
The diameter of the flue should not be less than
150mm and not more than 200mm.
If any of these requirements are not met, the
chimney should be lined by a suitable method.
If there is no existing chimney then either a
prefabricated block chimney in accordance with
Building Regulations Approved Document J, or a
twin-walled insulated stainless steel flue to BS
EN 1856 can be used. These chimneys must be
fitted in accordance with the manufacturer’s
instructions and Building Regulations.
If the chimney is believed to have previously
served an open fire installation, it is possible
that the higher flue gas temperature from the
stove may loosen deposits that were previously
firmly adhered, with the consequent risk of flue
blockage. It is therefore recommended that the
chimney be swept a second time within a
month of regular use after installation.
If you have any doubts about the suitability of
your chimney, consult your local
dealer/stockist.
CONNECTION TO THE CHIMNEY
The chimney must be swept before connection
to the stove.
An existing fireplace opening can be bricked up
or sealed with a register plate.
A short length of flue pipe of minimum 125mm
internal diameter may then be used to connect
the stove to the chimney. This flue pipe should
be made of 316 grade stainless steel or vitreous
enamelled steel, nominal thickness 1.2mm.
Ensure that the pipe end is no closer than
76mm to the chimney walls.
The length of any horizontal run of flue pipe
must not exceed 125mm.
It is essential that all connections between the
stove and chimney-flue are sealed and made
airtight.
Both the chimney and flue pipe must be
accessible for cleaning and if ANY part of the
chimney cannot be reached through the stove
(with baffle removed), a soot door must be
fitted in a suitable position.
FLUE DRAUGHT
If the draught exceeds the recommended
maximum, a draught stabiliser must be fitted so
that the rate of burning can be controlled and
to prevent over firing.
If the reading is less than the recommended
minimum then the performance of the
appliance will be compromised.
The flue draught should be checked under fire
at high output.
Minimum Draught –1.2mm Water Gauge
Maximum Draught –2.5mm Water Gauge

JINHCR03 RevB 22/06/2012
AIR SUPPLY
The room or space containing this appliance
should have purpose provided ventilation
(where necessary) in accordance with Building
Regulations.
Due consideration should be given to air
requirements for any other appliance in the
same room or space.
Any air opening must be kept clear from
blockage or obstruction.
HEARTH/MATERIAL CLEARANCES
Your stove must be installed on a floor with
adequate load-bearing capacity, otherwise
suitable measures should be taken.
Use the adjusting screws in the feet to level the
stove.
The stove can be recessed into a suitably sized
fireplace. Ensure there is a free air gap of at
least 150mm above and 50mm around the sides
and rear of the stove.
Where possible it is recommended that a free
air gap of 150mm or more is left around the
sides of the stove to obtain maximum heat
output and to gain access to the rear of the
stove.
The hearth should extend at least 225 mm from
the front of the stove.
If the stove is to stand in an appliance recess, it
should stand wholly above a solid, non-
combustible hearth, at least 125 mm thick (this
may include the thickness of a solid floor).
If the stove is not to stand in an appliance
recess, it may stand wholly above a hearth
made of non-combustible board / sheet
material or tiles, at least 12mm thick.
The hearth should extend at least 150 mm from
the sides and rear of the stove, and at least 225
mm from the front of the stove.
All non-combustible walls closer than 300mm to
the stove should be at least 75mm thick.
Minimum Distances to Combustible Material
Behind the stove
650mm
At the side of the stove
550mm
In front of the stove
900mm
Note: combustible material refers to any
material that will degrade when subjected to
heat e.g. plaster.
No combustible material must be stored
underneath the stove.
COMMISSIONING &HANDOVER
Upon completion of the installation, allow a
suitable period of time for any fire cement and
mortar to dry out.
A small fire may then be lit and checked to
ensure the smoke and fumes are taken from the

JINHCR03 RevB 22/06/2012
stove up the chimney and emitted safely to
atmosphere.
Do not run the stove at full output for at least
24 hours.
On completion of the installation and
commissioning, ensure that the operating
instructions and operating tools for the stove
are left with the customer.
Advise the customer on the correct use of the
appliance with the fuels likely to be used on the
stove and warn them to use only the
recommended fuels for the stove.
Advise the user on what to do should smoke or
fumes be emitted from the stove.
The user should be warned to use a fireguard to
BS 8423 in the presence of children and/or
infirm persons.
Operating
Instructions
This appliance is not suitable for use in a shared
flue.
Operation with the door open can cause excess
smoke. This appliance must not be operated
with the door open.
AEROSOL SPRAYS
Do not use an aerosol spray on or near the
stove when it is alight.
AIR CONTROLS
This stove has been designed to burn far more
efficiently than a traditional stove, with the
obvious notable feature of clean glass.
However, for this product to work properly it
must be used correctly. To prevent excess
smoke emissions, the air controls of this
appliance must only be operated as directed in
the instructions.
It is essential that the stove has an adequate air
supply for combustion and ventilation.
PRIMARY AIR
This provides a conventional air draught to the
bed of the fire.
Primary air is controlled via the spinner in the
door. The amount of air can be increased by
rotating the spinner to the left.
SECONDARY AIR
Secondary air is controlled via the slider above
the door; it is this “Airwash” that keeps a clean
and uninterrupted view of the fire. The amount
of air can be increased by moving the slider to
the right.
TERTIARY AIR
Tertiary air aids in good secondary combustion
of the fuel and reducing emissions into the
chimney and environment.
Tertiary air can be controlled by adjusting the
cover plate on the back of the stove.
Warning! - This appliance will be hot when in
operation and due care should be taken.

JINHCR03 RevB 22/06/2012
We advise that suitable gloves are used when
operating the Primary and Secondary air
controls, and when opening the door.
RIDDLING GRATE
Your Hunter Stove is fitted with a locomotive
type grate. So that de-ashing can be carried out
cleanly and easily, it is riddled from the outside
of the stove with the doors closed.
To burn wood, push the operating tool up and
away from you.
When left in this position, air is restricted
through the bed of the fire providing a solid
base to build up a bed of ash.
Surplus ash can be removed either by gentle
riddling or with a shovel.
It might prove beneficial when burning more
reactive fuels to leave the grate in a “neutral”
position, thus directing some under fire air and
some over fire air to the firebed.
NOTES ON WOOD BURNING
With a full load of wood, the stove will need to
be refuelled approximately once every hour.
Wood can be stacked in the stove, but care
must be taken that logs do not touch the baffle.
Overloading the stove can cause excess smoke
to be emitted.
Wood burns most efficiently with the secondary
air valve lever in the open position and the
primary control closed. Moving the secondary
control will control the burn rate of the stove.
Note - primary and secondary air is needed to
light the stove, see section entitled ‘Lighting the
Stove’
Wood burns most efficiently on a bed of ash
and it is therefore only necessary to remove
surplus ash from the stove occasionally.
If there is insufficient burning material in the
firebed to light a new fuel charge, excessive
smoke emission can occur.
Refuelling must be carried out with a sufficient
quantity of glowing embers and ash, so that the
new fuel charge will ignite quickly. If there are
too few embers, add some kindling to prevent
excessive smoke.
LIGHTING THE STOVE
We recommend that you have two or three
small fires before you operate your stove to its
maximum heat output.
This is to allow the paint to cure in steadily and
to give a long service life of the paint finish.
During this curing in process you may notice an
unpleasant smell. It is non-toxic, but for your
comfort we would suggest that during this
period you leave all doors and windows open.
To light the stove open the primary and
secondary air controls fully. Light one or two
firelighters placed centrally on the grate,
allowing the flames to become established
before placing several pieces of small dry

JINHCR03 RevB 22/06/2012
kindling in a criss-cross fashion above the
firelighters, taking care not to smother the fire.
Close the stove door. Once the kindling is well
alight open the door and build the fire by
gradually adding slightly larger pieces of wood,
closing the door afterwards.
Once you have a good fire established across
the grate bed, further fuel can be added as
required and the air controls set to the correct
position (see ‘Notes on Wood burning’).
Should the fire fail to light correctly open the
door and use a poker to spread the fuel across
the grate. Close the door and allow the fuel and
stove to cool before attempting to relight the
fire.
N.B. Leaving the air controls in the closed
position, adding too much fuel or using wood
that is wet or too large will prevent the fire
from establishing correctly and may result in
smoke emission from the stove.
REDUCED COMBUSTION
In order to shut down the stove, close the
primary control, then close the secondary air
slider by moving the handle all the way to the
left.
If the controls are left in this position, the fire
will be starved of air and will die down.
If you want to revive the fire it is recommended
that the primary air control is open first, and
then open the secondary air slider.
Warning!- The stove will remain hot for a
considerable time after the fire has been
extinguished.
RECOMMENDED FUELS
Hunter Stoves recommend that wood logs are
burnt in this appliance.
Burn only dry, well-seasoned wood, which
should have been cut, split and stacked for at
least 12 months, with free air movement
around the sides of the stack to enable it to dry
out.
Burning wet or unseasoned wood will create
excess smoke emissions, tar deposits in the
stove and chimney and will not produce a
satisfactory heat output.
Only authorised smokeless fuels may be used in
smoke control areas.
Warning! - Petroleum coke fuels or household
waste must not be burnt on this appliance.
This appliance should not be used as an
incinerator.
No liquid fuels should be burnt on this
appliance.
Should any difficulties arise over fuel quality or
suitability, consult your local approved coal
merchant or:
HETAS Ltd –Telephone [phone] –
www.hetas.co.uk
Solid Fuel Association –Telephone [phone]
000 –www.solidfuel.co.uk

JINHCR03 RevB 22/06/2012
GENERAL
MAINTENANCE
This appliance requires regular maintenance by
a competent person.
BAFFLE
This should be removed and cleaned at least
once a month to prevent any build up of soot or
fly ash that could lead to blocked flueways and
dangerous fume emission.
If the baffle is removed the chimney/flueway
can be swept through the appliance.
STOVE BODY
The stove is finished with a heat resistant paint
and this can be cleaned with a soft brush.
Do not clean whilst the stove is hot.
The finish can be renovated with Hunter Stoves
paint.
GLASS PANEL
Clean the glass panel when cool with Hunter
Stoves glass cleaner.
Highly abrasive substances should be avoided as
these can scratch the glass and make
subsequent cleaning more difficult.
Wet logs on heated glass, a badly aimed poker
or heavy slamming of the door could crack the
glass panel.
The glass will not fracture from heat.
FIREBRICKS
In normal use, these can last for many years. It
is possible however, to crack them if logs are
continually jammed against them or if they are
frequently struck with a poker.
Check periodically for seriously cracked bricks,
which can be replaced with new, available from
your dealer.
DOOR CATCH
The door catch may require adjustment to
maintain the door seal.
To adjust the catch:
Loosen the locking nut.
Rotate the catch bolt one turn towards the
door you will achieve a tighter lock when
the door is closed.
Tighten the locking nut.
ROPE
Check the rope around the door. If rope is
becoming detached, use Hunter Stoves rope
glue to reattach it. If the rope is in a poor
condition, a replacement rope kit may be
ordered from the Hunter Stoves spares range.
CHIMNEY AND FLUEWAYS
It is important that the chimney, flueways and
any connecting flue pipe are swept regularly.
This means at least once a year for smokeless
fuels and at least twice a year for wood and
other fuels.
The baffle will need to be removed from its
supports in order to sweep the chimney (see
assembly instructions).

JINHCR03 RevB 22/06/2012
Only wire-centred sweeps’ brushes fitted with a
guide wheel should be used.
If it is not possible to sweep all parts of the
chimney through the appliance, ensure there is
adequate access to cleaning doors.
PERIODS OF PROLONGED NON-USE
If the stove is to be left unused for a prolonged
period of time then it should be given a
thorough clean to remove ash and unburned
fuel residues. To enable a good flow of air
through the appliance to reduce condensation
and subsequent damage, leave the air controls
fully open
If the appliance has been unused for a long
period of time, such as during the spring and
summer months, a competent person should
check the chimney for potential obstructions
before lighting the stove.
GASKETS
All gasket used on this appliance are produced
from a heat resistant material called Manniglas.
The glass gasket will have to be replaced when
a new piece of glass is fitted as the gaskets
become brittle after firing the stove.
Over time you may also find that the gasket
changes colour. This is due to a reduction in the
pigment used in the manufacture of the
product and no cause for concern.
Troubleshooting
FIRE WILL NOT BURN
Check that:
The air inlets are not obstructed in any way.
Chimneys and flueways are clear.
A suitable fuel is being used.
There is an adequate air supply into the
room.
An extractor fan is not fitted in the same
room as the stove.
Flue draught is above minimum level (see
installation instructions).
FIRE BLAZING OUT OF CONTROL
Check that:
The doors are tightly closed.
The air controls are all in the closed position.
A suitable fuel is being used.
The glass retaining clips are not loose.
The door rope seals are in good condition.
Flue draught is below maximum level (see
installation instructions).

JINHCR03 RevB 22/06/2012
Glass Clip
(HHR08/164)
Glass Clip Screw
(FSJM05008SS)
Glass Clip
(HHR08/164)
Glass Clip Screw
(FSJM05008SS)
Spares Information
Door spares
STANDARD DOOR
Door –Standard
(HCR06/037)
Primary Air Spinner
(HCR06/028)
Door Catch
Assembly(DCH4)
Door Handle
(HCR06/059)
Door Glass
(HCR06/039)
Door –Standard
(HCR06/056)
Door Catch Assembly
(DCH4)
Door Handle
(HCR06/059)
Primary Air Spinner
(HCR06/057)
CONTEMPORARY
DOOR
Door Glass
(HCR06/058)
Rope Sealing Kit
(SCPHKRSK)
Rope Sealing Kit
(SCPHKDRSK)

JINHCR03 RevB 22/06/2012
Body Assembly Spares –Multi-Fuel
Gasket
(CH05/042)
Tertiary Air Bar
(HCR03/046)
Rear Brick –M/F
(HCR03/048)
Side Brick –M/F
(HCR03/047)
Ashpan
(HCR06/022)
Door Seal Bar
(HCR06/030)
Riddling Support
(HCR03/020)
Riddling Bar –Upper
(HCR06/019)
Riddling Bar –Lower
(HCR06/020)
CamBar
(HCR03/005)
Side Plates
(HCR06/031 A/B)
Baffle
(HCR03/044)
Hinge
(HCR03/039)
Hinge Pin
(FRRE10-1.50)
Operating Tool
(HFR07/040)