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Hawk 3 MKI
Hawk 3D MKI
Installation and Operating Instructions
Please hand these instructions to the stove user when the installation
is complete. Leave the system ready for operation and instruct the
user in the correct use of the appliance and operation of controls.
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PLEASE READ THESE INSTRUCTIONS CAREFULLY
It is important that your stove is correctly installed as Hunter Stoves Limited cannot
accept responsibility for any fault arising through incorrect installation.
HAWK 3 STOVE ASSEMBLY
Flue Collar
Place the flue collar on the top or rear outlet as
required and secure to the four locating tabs inside
the flue outlet using the 6mm nuts & bolts supplied.
Blanking Plate
The blanking plate is also fixed to the locating tabs using the 6mm nuts
& bolts supplied.
Throat Plate
The throat plate is supported in the stove via the upper brick-retaining bar, directly below
the outlet in the back plate, and the baffle retaining strips on either side.
Slide the right-hand side of the throat plate over the right-hand baffle retaining strip until
the left-hand edge will pass over the other baffle retaining strip. Slide the throat plate
back to the left until it is central in the stove and is supported on both sides.
Removal is the reverse process of fitting.
Firebricks
Multifuel: -
The rear brick is factory fitted. It may be removed by lifting it until the bottom edge can
pass over the rear brick retaining bar (lower). Tilt the bottom edge of the brick towards
the front of the stove and slide the brick out. Fitting is the reverse of removal. The side
bricks rest on/behind the multifuel side plates which themselves are held in position by
the cam bar and lower brick retaining bar.
Woodburner: -
The woodburning version only has a rear firebrick, which is held at the back of the
firebox by the upper brick-retaining bar.
After assembly, check that all parts are correctly fitted.
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Installation Instructions
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. In all cases the installation must comply with current Building
Regulations, Local Authority Byelaws and other specifications or regulations as
they affect the installation of the stove. It should be noted that the Building
Regulations requirements may be met by adopting the relevant
recommendations given in British Standards BS 8303, BS 6461 and BS 7566 as
an alternative means to achieve an equivalent level of performance to that
obtained following the guidance given in Approved Document J.
Health And Safety Precautions
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.
Metal Parts
When installing or servicing this stove, care should be taken to avoid the possibility of
personal injury.
Important Warning
This stove must not be installed into a chimney that serves any other heating
appliance.
There must not be an extractor fan fitted in the same room as the stove as this can
cause the stove to emit fumes into the room.
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Installation
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 125mm and not more than 230mm. If
any of these requirements are not met, the chimney should be lined by a suitable
method.
The chimney must be swept before connection to the stove.
Where 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.
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 4543 can be used. These chimneys must be fitted
in accordance with the manufacturer’s instructions and Building Regulations.
Flue Draught
A flue draught of minimum 1.5mm to a maximum 2.5mm water gauge is required for
satisfactory appliance performance. The flue draught should be checked under fire at
high output and, if it exceeds the recommended maximum, a draught stabiliser must
be fitted so that the rate of burning can be controlled and to prevent overfiring.
Air Supply
If a draught stabiliser is fitted, the room or space containing this appliance should
have a permanent, unobstructed air opening of at least 1200mm2. Due consideration
should be given to air requirements for any other appliances in the same room or
space.
Connection to the Chimney
An existing fireplace opening can be bricked up or sealed with a register plate. A
short length of flue pipe of a minimum 125mm internal diameter may then be used to
connect the stove to the chimney. This flue pipe should be of 316 grade stainless steel
or vitreous enamelled, nominal thickness 1.2mm. Ensure that the pipe end is no
closer than 76mm to the side or rear chimney walls.
Ideally, the old fireplace should be filled in so that there is a smooth streamlined entry
into the flueway.
The length of any horizontal run of flue pipe must not exceed 150mm.
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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 parts of
the chimney cannot be reached through the stove (with throat plate removed), a soot
door must be fitted in a suitable position to enable this to be done.
Material Clearances
The stove can be recessed in a standard 16” fireplace opening but a permanent free air
gap of at least 50mm must be left at the back of the stove to obtain maximum heat
output and for access to the rear of the stove.
The thickness of all walls around the stove should comply with Building Regulations
Approved Document J.
In all instances the back wall of the fireplace recess and the hearth should be made of
non-combustible material.
Allow an apron of a least 300mm at the front of the stove and 150mm on either side.
The hearth on which the stove is to be placed should not be less than 125mm thick
and should be in accordance with the current building regulations. Care should be
taken to level the stove.
There should be NO combustible material within a distance of 900mm from any
surface of the stove.
The appliance shall be installed on a floor with adequate load-bearing capacity. If the
existing construction does not meet this prerequisite, suitable measures (e.g. load
distributing plate) should be taken to achieve it.
Commissioning and 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 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. Be sure to
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 advised to use a fireguard to BS 6539 in the presence of children, aged
and/or infirm persons.
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Operating Instructions
This appliance is not suitable for use in a shared flue
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 cleaner and more efficiently than a conventional
wood burning stove. If used correctly this stove will burn far more efficiently than
normal with the obvious notable feature of CLEAN GLASS.
However, for this product to work properly it must be used correctly.
It is essential that the stove has adequate air supply for combustion and ventilation.
The primary and secondary air inlets must be kept clear from obstruction and
blockage.
Warning! This Appliance will be hot when in operation and due care should be
taken. The riddling tool may be used to operate the door handle and air controls.
Primary Air
Primary air is controlled via the spinner in the bottom of
the door. This provides a conventional air draught to the
bed of the fire. The spinner should be screwed in fully to
close the primary air intake.
Secondary Air
Secondary air is controlled via the slider above and to the right of the door, it is this
“airwash” that keeps a clean and uninterrupted view of the fire, also aiding in good
secondary combustion of the fuel and reducing emissions into the chimney and
environment.
Note: The “airwash” is open when the slider knob is pushed to the right.
Damper Assembly (Optional)
When burning wood, the flue damper assembly may be fitted. When the damper is
set in the open position the chimney draws at full draught, increasing the volume of
airflow through the stove and flue. Shutting the damper restricts the flow, slowing the
rate of burning.
Warning! The flue damper should not be fitted when burning solid fuels.
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Multifuel Grate
Your Hunter Herald 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. The grate is designed to burn both wood and solid
fuels.
To burn solid mineral fuels, place the operating tool over
the riddling spigot and pull it down towards you. When
left in that position, air is directed under and up through
the slots in the firebed, giving the optimum conditions for
burning solid fuels.
It is important that the riddler is used to remove the ash to
ensure airflow through the firebed and allow the fire to
burn over the entire area of the grate. The ashpan should
be emptied at least daily and ash should never be allowed
to build up over a period of time as this will result in
damage to the firebars. The flat end of the riddling tool
can be used to carry the ashpan.
To burn wood, push the operating tool up and away from you. When left in this
position, air is directed through the slots now formed behind the door, and not through
the firebed, which now provides 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 underfire air and some overfire air to the
firebed.
Notes on solid mineral fuel burning
Solid mineral fuel should be placed in the stove so that there is no more than a 30°
incline of the fuelbed from front to back. It should not be stacked above the level of
the rear firebrick as this may result in damage to the stove.
With a full load of fuel, the stove will need to be refuelled approximately once every
4 hours.
Solid mineral fuel burns most efficiently with the secondary air control in the closed
position. The primary air spinner can then be used to control the burn rate of the
stove.
Always de-ash before refuelling and do not let the ash build up to the underside of the
grate bars. Solid mineral fuel produces ash, which if allowed to build up will stifle
the airflow through the grate and eventually cause the fire to die.
With some solid mineral fuels a residue of burnt fuel or clinker will accumulate on the
grate, allow the fire to go out periodically to remove this.
Important! - We cannot stress firmly enough how important it is to empty the ashpan
regularly. Air passing through the firebed cools the grate bars. Distortion or burning
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out the grate bars is nearly always caused by ash being allowed to build up to the
underside of the grate.
Notes on Woodburning
With a full load of wood, the stove will need to be refuelled approximately once every
1.5 hours.
Wood can be stacked higher in the stove than solid mineral fuel but care must be
taken that logs do not touch the throat plate.
Wood burns most efficiently with the primary air closed. The secondary control can
then be used to control the burn rate of the stove.
Note - primary air is needed to light the stove, see section entitled ‘Lighting the
Stove’
Wood burns best on a bed of ash and it is therefore only necessary to remove surplus
ash from the stove occasionally.
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 tar deposits in the stove and
chimney and will not produce a satisfactory heat output.
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.
First, load the fire with starting fuel, i.e. paper, dry sticks and/or firelighters in the mode
chosen, either wood or solid mineral fuel.
Light the fire at the base leaving all air controls open. Allow the fuel to reach a steady
glow and build the fire up gradually. Once you have a good fire established across the
grate bed, further fuel can be added as required.
Overnight burning
The stove can be banked up for overnight burning. When burning solid fuel, empty the
ashpan. Open air controls and let the fire burn brightly for a short period. Refuel and
close both air controls, the exact setting required will depend on the fuel used and the
chimney draw so some practice may be necessary. To revive the fire, open air controls
until the fire is burning brightly, de-ash if necessary (solid fuel only) and refuel. Set air
controls as required.
Shutting Down
In order to shut down the stove, close the primary air spinner, 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 shut down.
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Warning!- The stove will remain hot for a considerable time after the fire has been
extinguished.
Recommended Fuels
Anthracite is an approved natural smokeless fuel (not processed) and therefore can
vary greatly in quality and performance. It generally requires excellent air supply and
above average fire-bed temperatures to maintain maximum performance and with
experience we would suggest that it is used in conjunction with other approved
manufactured smokeless fuels as per the HETAS approved list.
The following fuels are suitable for use in this appliance:-
Coalite
Coalite Nuts
Blazebrite
Coalite Firebrite
Phurnacite
Mixed Nuts
Ancit
Taybrite
Sunbrite Doubles
Cosycoke
Pureheat
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.
Should any difficulties arise over fuel quality or suitability, consult your local
approved coal merchant or:
HETAS Ltd.– Telephone 01242 673257 – www.hetas.co.uk
Solid Fuel Association – Telephone 0800 600 000 – www.solidfuel.co.uk
Supercoke
Jewel
Maxibrite
Newflame
Supacite
Fireglo Ovoids
Anthracite Small Nuts
Wood Logs
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Safety notes for your guidance
FIRES CAN BE DANGEROUS – Always use a fireguard in the presence of children,
the elderly or the infirm. The fireguard should be manufactured in accordance with
BS 6539 – Fireguards for use with solid fuel appliances.
DO NOT OVERFIRE – it is possible to fire the stove beyond its design capacity, this
could damage the stove, so watch for signs of overfiring – if any part of the stove
starts to glow red, the fire is in an overfire 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.
WARNING – FUME EMISSION
Properly installed and operated, this appliance will not emit fumes. Occasional fumes
from de-ashing and refuelling may occur. Persistent fume emission must not be
tolerated.
If fume emission does persist, then the following immediate action should be taken: -
1. Open doors and windows to ventilate room.
2. Let the fire out, or eject and safely dispose of fuel from the appliance.
3. Check for flue chimney blockage and clean if required.
4. Do not attempt to re-light the fire until the cause has been identified and
corrected.
If necessary, seek professional advice.
Important! – Do not fit an extractor fan in the same room as this appliance.
IN THE EVENT OF A CHIMNEY FIRE
• Raise the alarm to let others in the house know.
• Call the Fire Brigade.
• Reduce the appliance burning rate by closing all air controls.
• Move furniture and rugs away from the fireplace and remove any nearby
ornaments.
• Place a fire guard or spark guard in front of the stove.
• Feel the chimney breast for signs of excessive heat.
If the wall is becoming hot, move the furniture away. Ensure that the Fire Brigade
can gain access to your roof space in order to check this area for signs of fire spread.
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GENERAL MAINTENANCE
NO unauthorised modification of this appliance should be carried out.
Throat Plate
This should be removed and cleaned at least once a month to prevent any build up of
soot or fly ash which could lead to blocked flueways and dangerous fume emission.
If the throat plate 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, wait until it has cooled down. The finish
can be renovated with Hunter stove paint.
Glass Panel
Clean the glass panel when cool with Hunter 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.
Chimney and Flueways
It is important that both 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 throat plate will need to be removed from its supports
in order to sweep the chimney (see assembly instructions).
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.
If the stove is fitted in place of an open fire, then the chimney should be swept one
month after installation to clear any soot falls which may have occurred due to the
difference in combustion between the stove and the open fire.
Rope
Check the rope around the door and glass. 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.
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Troubleshooting
Fire will not burn
Check that:
1. The air inlet is not obstructed in any way
2. Chimneys and flueways are clear
3. A suitable fuel is being used
4. There is an adequate air supply into the room
5. An extractor fan is not fitted in the same room as the stove
6. Flue draught is above minimum level (see installation instructions)
Fire blazing out of control
Check that:
1. The doors are tightly closed
2. The air controls are all in the closed position
3. A suitable fuel is being used
4. The door rope seals are in good condition
5. Flue draught is below maximum level (see installation instructions)
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Hawk 3 Order
No.
Description
12mm Sealing Rope 12SR
10mm Sealing Rope N/A
6mm Sealing Rope 6SR
Door - 3 HCR06037
Door – 3D HCR06056
Door Knob – 3 Cast HFR07028C
Door Knob – 3 Brass HFR07028B
Door Knob – 3D Cast HCR06059C
Door Knob – 3D Brass HCR06059B
Glass Panel - 3 HCR06039
Glass Panel – 3D HCR06058
Glass Clip & Screw HHR08046
Fan Catch & Nut HCR06/047
Door Spinner – 3 HCR06028
Door Spinner – 3D HCR06057
Door Hinge HCR03018
Slider Knob HCR06046
Flue Collar HHR06001
Blanking Plate HHR06002
Grate Bar Low/Thick HCR06020
Grate Bar High/Thin HCR06019
Cam Bar HCR03005
Ashpan HCR06022
Rear Firebrick (Multifuel) HCR03014
Side Firebrick (Multifuel) HCR03015
Wood Front (Woodburner) HCR03021
Operating/Riddling Tool HFR07040
Side Plate (RHS) HCR03016
Side Plate (LHS) HCR03017
Top Brick Bar HCR03011
Lower Brick/ Grate Support Bar HCR06014
Throat Plate HCR03013
Use only Hunter Stoves Ltd spare parts
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