Herald 5 Slimline Woodburner Instructions

Herald 5 Slimline Woodburner Instructions
Wood Burning Stove
Installation and Operating Instructions
JINHHW05WB RevA 27/04/12
Herald Slimline 5
Technical Specification
Appliance Mass
Total Efficiency
Nominal Heat Output
Mean CO Emission (@13% O2)
Mean Flue Gas Temperature
Flue Gas Mass Flow
88 kg
74.1 %
4.2 kW
0.32 %
268 °C
5.0 g/s
This appliance is not for use in shared flue
This appliance is suitable for intermittent burning
JINHHW05WB RevA 27/04/12
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
recommendations in the current issues of
British Standards BS 8303 and BS EN 15287-1.
Further guidance on the installation of the
carbon monoxide alarm is available in BS EN
50292:2002 and from the alarm manufacturer’s
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
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.
Adequate facilities must be available for
loading, unloading and site handling.
Fire Cement
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.
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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.
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
Metal Parts
When installing or servicing this stove, care
should be taken to avoid the possibility of
personal injury.
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.
No unauthorized modification of this appliance
should be carried out.
Fume Emission
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.
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.
If fume emission does persist, then the
following immediate action should be taken: -
Do not use an aerosol spray on or near the
stove when it is alight.
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
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.
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
JINHHW05WB RevA 27/04/12
advise on solutions to this problem (e.g. antidowndraught 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.
Wind the eight M6 studs supplied into the fixing
holes in the flue collar and blanking plate until
finger tight.
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.
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
Ensure the Fire Brigade can gain access to your
roof space in order to check for fire spread.
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.
JINHHW05WB RevA 27/04/12
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.
The chimney height and the position of the
chimney terminal should conform to Building
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
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
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
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Air Supply
The room or space containing this appliance
should have purpose provided ventilation
(where necessary) in accordance with Building
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.
Minimum Distances to Combustible Material
Behind the stove
At the side of the stove
In front of the stove
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
Hearth/ Material Clearances
Your stove must be installed on a floor with
adequate load-bearing capacity; otherwise
suitable measures should be taken.
Upon completion of the installation, allow a
suitable period of time for any fire cement and
mortar to dry out.
Use the adjusting screws in the feet to level the
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
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.
Do not run the stove at full output for at least
24 hours.
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
The stove should stand wholly above a solid,
non-combustible hearth of at least 125 mm
thickness, (this may include the thickness of a
solid floor).
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.
JINHHW05WB RevA 27/04/12
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.
This appliance is not suitable for use in a shared
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
Operation with the door open can cause excess
smoke. This appliance must not be operated
with the door open
Tertiary air aids in good secondary combustion
of the fuel and reducing emissions into the
chimney and environment.
Aerosol Sprays
Tertiary air can be controlled by adjusting the
cover plate on the back of the stove.
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
Primary air is controlled via the slider in the
door. The amount of air can be increased by
moving the slider to the right. On the double
door versions the amount of air is increased by
moving the sliders outwards.
This provides a conventional air draught to the
bed of the fire.
JINHHW05WB RevA 27/04/12
Warning! - This Appliance will be hot when in
operation and due care should be taken.
We advise that suitable gloves are used when
operating the Primary and Secondary air
controls, and when opening the door.
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
Wood burns best 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.
the firebox. Close the door and allow the fuel
and stove to cool before attempting to relight
the fire.
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.
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
We recommend that you have two or three
small fires before you operate your stove to its
maximum heat output.
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
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 by pushing both levers
fully to the right. Light one or two firelighters
placed centrally in the firebox, allowing the
flames to become established before placing
several pieces of small dry kindling in a crisscross 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
Once you have a good fire established across
the firebox 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
JINHHW05WB RevA 27/04/12
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
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
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
No liquid fuels should be burnt on this
Should any difficulties arise over fuel quality or
suitability, consult your local approved coal
merchant or:
HETAS Ltd – Telephone 01242 673257 –
Solid Fuel Association – Telephone 0800 600
000 – www.solidfuel.co.uk
JINHHW05WB RevA 27/04/12
This appliance requires regular maintenance by
a competent person.
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.
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
Glass Panel
Door Catch
The door catch may require adjustment to
maintain the door seal.
To adjust the catch:
Loosen the M6 nut located at the rear of
the door catch mechanism.
Rotate the barrel catch one complete turn
to achieve the correct door operation.
Retighten the M6 nut.
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.
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.
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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).
Only wire-centred sweeps’ brushes fitted with a
guide wheel should be used.
This is due to a reduction in the pigment used in
the manufacture of the product and no cause
for concern.
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
Fire will not burn
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
Check that:
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.
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
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:
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.
JINHHW05WB RevA 27/04/12
The doors are tightly closed.
The air controls are all in the closed
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).
Spares Information
Single Door spares
Door Glass
Glass Gasket
Door Handle
Single Door
Glass Clip
Glass Clip Screw
Door Catch Assembly
Slider Knob
Door Cover
JINHHW05WB RevA 27/04/12
Door Slider
Rope Sealing Kit
Double Door spares
Right Hand Door
Right Hand Door
Door Glass
Glass Gasket
RH Door Cross
Door Handle
Glass Clip
Glass Clip Screw
Slider Knob
Door Slider
Door Catch Assembly
Rope Sealing Kit
Left Hand Door
Door Glass
Glass Gasket
Left Hand Door
Glass Clip
Glass Clip Screw
LH Door Cross
Slider Knob
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Door Slider
Rope Sealing Kit
Body Assembly Spares – Wood
Flue Gasket
Recouping Baffle
Tertiary Air Bar
Hinge Pin
Side Brick
Rear Brick
Catch Bar/Wood Front
Single Door
Double Door
Operating Tool
JINHHW05WB RevA 27/04/12
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