HWAM 4340 User manual

User's Manual EN
08.10.2020 / 97-9709
www.hwam.com
4340

Table of contents
Drawings ....................................................3-6
For UK - The Clean Air Act 1993 and Smoke Control Areas ........7
HWAM®SmartControlTM ......................................8
Installation....................................................9
Firing manual - wood ..........................................12
Firing in general...............................................15
Maintenance .................................................15
Operational problems..........................................17
Declaration of Performance .....................................18
Product information EcoDesign ..................................19

Page 3 of 20 pages
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CAD-0194490
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Afstand til væg
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08-06-2020
KHO Frigivet for manualer.
Oprettet for manualer. KHO 08-06-2020
A
Comment Init. Date Rev.
Rettet nummerhenvisning på hjørneillustrationer fra 2 til 1. KHO
11-06-2020
B
KHO
08-06-2020
DS/EN 22768-m
1:10
A3
Com-Released
Created date:
Format:
Item number:
kg.
Part:
Weight:
Tolerance:
HWAM A/S
Nydamsvej 53-55
DK - 8362 Hørning
Tel. [phone]
Fax [phone]
Material:
Created by:
Configuration name:
Item:
Status:
Scale:
Drawing number:
Model:
HWAM 4300
Illustrationer Hwam 4300
Thickness: mm
3
2
1
4
SECTION A-A
1
1
45°
3
4
SECTION B-B
Page 1 of 2
CAD-0194490
-
Afstand til væg
A
08-06-2020
KHO Frigivet for manualer.
Oprettet for manualer. KHO 08-06-2020
A
Comment Init. Date Rev.
Rettet nummerhenvisning på hjørneillustrationer fra 2 til 1. KHO
11-06-2020
B
KHO
08-06-2020
DS/EN 22768-m
1:10
A3
Com-Released
Created date:
Format:
Item number:
kg.
Part:
Weight:
Tolerance:
HWAM A/S
Nydamsvej 53-55
DK - 8362 Hørning
Tel. [phone]
Fax [phone]
Material:
Created by:
Configuration name:
Item:
Status:
Scale:
Drawing number:
Model:
HWAM 4300
Illustrationer Hwam 4300
Thickness: mm
7b 7a
7a
D.

Page 4 of 20 pages
E1.

Page 5 of 20 pages
E2.

Page 6 of 20 pages
G.
F.

Page 7 of 20 pages
For UK - The Clean air aCT 1993 and SmoKe ConTrol areaS
Under the Clean Air Act local authorities may declare the whole or part of the district of the authority
to be a smoke control area. It is an offence to emit smoke from a chimney of a building, from a furnace
or from any fixed boiler if located in a designated smoke control area. It is also an offence to acquire
an ”unauthorised fuel” for use within a smoke control area unless it is used in an ”exempt” appliance
(”exempted” from the controls which generally apply in the Smoke Control Area).
In England appliances are exempted by publication on a list by the Secretary of State in accordance with
changes made to sections 20 and 21 of the Clean Air Act 1993 by section 15 of the Deregulation Act
2015. Similarly in Scotland appliances are exempted by publication on a list by Scottish Ministers under
section 50 of the Regulatory Reform (Scotland) Act 2014. In Northern Ireland appliances are exempted
by publication on a list by the Department of Agriculture, Environment and Rural Affairs under Section
16 of the Environmental Better Regulation Act (Northern Ireland) 2016. In Wales these are Exempted
by regulations made by Welsh Ministers.
Further information on the requirements of the Clean Air Act can be found here: https://www.gov.uk/
smoke-control-area-rules.Your local authority is responsible for implementing the Clean Air Act 1993
including designation and supervision of Smoke Control Areas and you can contact them for details of
Clean Air Act requirements.
The HWAM 4300 stoves detailed below have been recommended as suitable for use in smoke control
areas when burning wood logs.The appliance has been fitted with a modified secondary air control to
prevent closure of the air inlet below 25 %.
Appliances recommended as suitable for use in Smoke Control Areas :
• HWAM 4340 SmartControl
• HWAM 4340 SmartControl with soapstone cladding,
• HWAM 4340 SmartControl with natural stone cladding
Refuelling on to a low fire bed
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 onto a sufficient quantity of glowing embers and ash that the
new fuel charge will ignite in a reasonable period. If there are too few embers in the fire bed, add suitable
kindling to prevent excessive smoke.
Fuel overloading
The maximum amount of fuel specified in this manual should not be exceeded, overloading can cause
excess smoke.
Operation with door left open
Operation with the door open can cause excess smoke.The appliance must not be operated with the
appliance door left open except as directed in the instructions.

Page 8 of 20 pages
hWam® SmarTConTrol™
Congratulations on your new wood-burning stove complete with a HWAM®SmartControlTM
We are pleased that you have chosen a HWAM woodburning stove and confident that it will give you
much pleasure.
The HWAM®SmartControlTM is a digital control of the combustion in your new wood-burning stove.The
purpose of the HWAM®SmartControlTM is to control the combustion in an environmentally optimal and
economically efficient way, with a view to generating greater user comfort.
The HWAM®SmartControlTM is a new patented technology, which electronically adjusts the air supply to
the combustion chamber.Your new wood-burning stove continually measures the temperature and the
oxygen levels of the combustion. Moreover, it is programmed to supply oxygen to the fire through three
important air inlets in the right amount, and at the right time and place in the combustion chamber. By
downloading a free app for your smartphone or tablet, you can use the app among other things: to set
the thermostat to the desired room temperature level, choose time for night-time reduction and keep
your stove updated.The app also gives you current information on burning in the stove. See details in
separate manuals for the app IHS Smart ControlTM or in the Quickguide.
.
Your new wood-burning stove and the HWAM®SmartControlTM will ensure the cleanest possible com-
bustion as well as a good fuel economy, regardless of external conditions such as the type of firewood
used, the chimney, the user’s experience, and other external circumstances.
The HWAM®SmartControlTM consists of the following components:
• Air box: the Air box contains a printed circuit board/software, as well as three motors and dampers
that control primary, secondary, and tertiary combustion air.The fresh air system can be mounted
on the Air box to the back or in the bottom.
• Two sensors: a temperature sensor and an oxygen sensor transmit information from the wood-
burning stove to the Air box.
• Room temperature sensor: The room temperature sensor with batteries communicates with the
HWAM®SmartControlTM via a wireless connection. It should be placed so it does not have direct
radiant heat from the stove. Note that the maximum distance between stove and room temperature
indicator is about 4-5 metres.The range is reduced if there are walls or other obstructions between
the stove and the room temperature indicator.
• Electricity supply: from the Air box to the nearest wall socket.
• App "IHS Smart ControlTM:The app can be downloaded free from the App Store or Google Play
Store. See details in separate manuals for the app IHS Smart ControlTM or in the Quickguide.
.

Page 9 of 20 pages
inSTallaTion
In general
To ensure optimum operation and safety, we recommend that the installation should be carried out by an
authorised HWAM retailer or a fitter recommended by the retailer. For an overview of HWAM retailers,
visit www.hwam.com under “Retailer locations”.
Safety
The installation of your HWAM woodburning stove must always comply with all European, national and
local building regulations.The installation must be carried out in accordance with the instructions in the
installation and user manuals and subsequently registered with the local authorities. Upon installation,
the chimney sweep must approve the installation before you can start using the woodburning stove.All
HWAM woodburning stove packaging material must be handled in accordance with local waste manage-
ment regulations.
Room requirements
Always ensure a supply of fresh combustion air to the room where the stove is to be installed. The
woodburning stove uses approx. 7-20 m3 of air per hour.A window that can be opened or an adjustable
air valve will be sufficient. It must not be possible to block the adjustable air valve/grate. In newly built/
airtight dwellings, we recommend that a fresh air system should be installed for the direct supply of
external air to the combustion.This fresh-air system may be bought separately.
Before installing the stove, you must ensure that the load-bearing capacity of the floor can withstand the
weight of the stove and the chimney. The weight of the chimney should be calculated according to its
dimensions and height. Remember to consider that the stove must be connected to power.
Technical measures and data
Test results from nominal test EN 13240
Nominal heating effect 6,0 kW
Flue gas temperature EN 13240 measurement point 267ºC
Flue gas temperature measured in the outlet socket 321ºC
Exhaust gas flow 4,7 g/s
Efficiency 82 %
Annual efficiency (EcoDesign) 72 %
PM 28 mg/m3
OGC 75 mg/m3
NOx 113 mg/m3
CO at 13% O21250 mg/m3
CO at 13% O20,10 %
Energy efficiency index 109
Energy efficiency class A+
Test result based on NS 3058
Particle emissions 1,16 g/kg
The declaration of performance (DoP) can be downloaded from our website, www.hwam.com.

Page 10 of 20 pages
Model Weight Height Width Depth
HWAM 4340 140 kg 120,3 cm 58,7 cm 47,9 cm
HWAM 4340 with natural stone cladding 198 kg 124,5 cm 58,7 cm 47,9 cm
HWAM 4340 with soapstone cladding 227 kg 124,5 cm 58,7 cm 47,9 cm
Floor plate
European, national and local regulations must be observed in terms of the size and thickness of a non-
combustible floor covering the floor in front of the combustion chamber opening. Ask your HWAM
retailer for assistance.The combustion chamber opening is 38.2 cm wide.
Distance to combustible materials
Min. distances - uninsulated flue gas pipe
(drawing A)
HWAM 4340
1. Recommended for brick wall 10 cm
1. For combustible back wall 11 cm
2. For combustible side wall 25 cm
1.To combustible wall,corner installation, 45º 13 cm
3. Distance to furnishings in front 120 cm
Remember to pay attention to applicable regulations concerning the required distance
between the wall and smoke pipe.
The distance to a brick wall is set to faciliate the servicing of the HWAM®SmartControlTM..
Please be aware that not all glass parts are heat-resistant. For this reason, a glass wall should sometimes
be treated as a combustible wall, in which case we ask you to contact your local chimney sweep or glass
producer to hear at what distance the stove should be kept from glass.
Requirements for chimney and smoke pipe
The height of the chimney must ensure sufficient draught and prevent any smoke nuisance.As a general
rule, satisfactory draught conditions are achieved if the chimney is 4 m above the stove and at least 80
cm above the ridge. If the chimney is placed at side walls, the top of the chimney should always be higher
than the ridge or the tallest point of the roof.Always be aware of any national and/or local regulations
applying to thatched roofs and the location of the chimneys.
The stove requires a minimum draught of 12 Pa (measured at EN 13240 measurement point).If measured
just above the smoke flue socket, the chimney draught must be 18-20 Pa.
The chimney must have a minimum clearing of Ø 150 mm. The chimney must be provided with an
easily accessible cleaning door.The chimney and flue duct must be of flue class T400 and be CE marked.
Furthermore, it must have obtained the classification of G in soot fire testing.The required distance to
combustible material must be complied with in accordance with the brand label.Ask your HWAM retailer
for further information.
Connection to chimney
All the stoves have both back and top outlet that can be connected to an approved steel chimney on top or
directly out at the ear to a chimney.
Make sure that the chimney is tight and that no false draft is caused around neither the cover plate, in
connection with a covered smoke outlet, nor the cleanout door and pipe connections. Please note that
bent and/or horizontal smoke pipes will reduce the effect of the chimney draft.

Page 11 of 20 pages
Vertical cross-section of smoke flue (Drawing B and C)
B: Top outlet
C: Back outlet
• Steel chimney (9).
• Flue gas elbow (10). Fits into smoke flue socket.
• Brick-built jamb of flue (11).
• Built-in pipe sleeve (12). Fits smoke flue.
• Wall rosette (13). Covers disruption to wall around pipe sleeve.
• Joint (14). Sealed with packing material.
• Smoke outlets (15) of the HWAM stove.
• Smoke flue regulating damper (16).
• Soot door (17).
Fitting the loose parts
Before the stove is installed,you must ensure that all loose parts are fitted correctly. Check that all insula-
tion plates of the combustion chamber have been properly placed, i.e. that the bottom plate is horizontal
and that the side plates are vertical and reach all the way up to the steel sides of the combustion chamber
and down to the bottom plate.
Vertical cross-section of the stoves (Drawing B, C and D):
• The smoke shelf (5).To be placed on top of the steel rail and on the holders in the sides
• Two-piece smoke defector plate (6).Each half is hung on the hooks located beneath the top plate.The two
halves join in the holders (7a) behind the air pipe. Once the stove has been installed, remove the safety
fittings for transportation (7b) from the two hooks
• Rear plate (2a), covering HWAM®Autopilot™. This must always be mounted if the stove is placed
next to a combustible wall
• Loose heat shield (8) under the ash pan.This can be used as a lid when the ash pan is removed for
emptying.This must always be mounted when the stove ist burning
Connection of the HWAM®SmartControlTM
Before using the stove it must be connected to power. See the instructions in the separate manuals for
the app IHS SmartControlTM or in the Quickguide in order to connect to stove with the app and the
wireless room temperature sensor. .
Chimney
The chimney is the “engine” of the stove and it is crucial for the functioning of the woodburning stove.
The chimney draft provides a partial vacuum in the stove. This vacuum removes the smoke from the
stove, sucks air through the dampers in the Air box for the so-called glass pane rinse which keeps the
glass free of soot, and for the combustion.
The chimney draft is created by the differences in temperature inside and outside the chimney.The higher the
temperature within the chimney, the greater the draft.It is therefore crucial that the chimney is heated well
through before regulating the air supply and thus limiting the combustion in the stove (a brick chimney takes
longer to warm up than a steel chimney).On days where the weather and wind conditions create insufficient
draught inside the chimney, it is even more important to warm up the chimney as quickly as possible.The
trick is to quickly get some flames going. Split the wood into extra fine pieces, use an extra firelighter, etc.
If the stove has not been used for a longer period,it is important to check that the chimney pipe is not blocked.
It is possible to connect several devices to the same chimney. However, it is important to first check the
applicable rules.

Page 12 of 20 pages
Chimney sweeping
To prevent the risk of chimney fires, the chimney must be cleaned every year.The flue duct and the smoke
chamber above the baffle plate must be cleaned together with the chimney. If the chimney is too tall to
be cleaned from above, it must be equipped with a soot door.
In case of a chimney fire and overheating, the HWAM®SmartControlTM will enter a security mode and
automatically adjust all dampers in the Air box, effectively quenching the fire. Do not open the door for
the burning chamber, since that might cause the fire to rekindle. Contact the fire brigade. After a fire, the
stove should be checked by a chimney sweep before use.
Firing manUal - Wood
Your first heating session
The lacquer will be fully hardened after the stove has been used, and the door and the ash pan should be
opened very carefully as there will otherwise be a risk that the gaskets will stick to the lacquer. In addi-
tion the lacquer may initially give off an unpleasant odour, so make sure that the room is well ventilated.
Tips about fuel
Approved fuel types
The wood burning stove is EN approved for combustion of wood only. It is recommended to use dried
chopped wood with a water content of 12-18%. Stoking a fire with wet wood results in soot, environ-
mental problems, and a less efficient fuel economy.
Recommended wood types
All types of wood,for instance birch,beech, oak,elm, ash,conifers, and fruit trees can be used as fuel in your
insert.The great difference is not in the fuel value, but in the weight of the wood types per cubic metre.
Beech weighs more per m3of wood than common spruce, for instance.This is why more common spruce
is required, in terms of volume, to obtain an amount of heat similar to that of beech. Heavy types of wood
such as ash, beech, oak and elm are generally not that easy to light up. In addition,they burn more slowly and
give off more embers. Light types of wood such as birch, maple, spruce and pine are more easy to light up.
They burn faster and give off fewer ambers.You may therefore take advantage of the light types of wood for
lighting and use the heavier types of wood to ensure a longer burning time.
Banned fuel types
It is not allowed to stoke a fire with the following: printed matter, plywood, plastic, rubber, fluid fuels,
and rubbish such as milk cartons, lacquered wood or impregnated wood and fossil fuels.The reason that
you should not apply any of the above is that during combustion they develop substances that are health
hazardous and harmful to the environment.These substances could also damage your wood burning stove
and chimney, rendering the product warranty void.
Storage of wood
A moisture content of 12-18% is achieved by storing recently felled wood outdoors under a lean-to
for at least one year, preferably 2 years.Wood stored indoors has a tendency to become too dry and
combust too quickly. However, it might be advantageous to store fuel for lighting a fire indoors for a few
days prior to use.
It is recommended to purchase a wood moisture meter to continuously check that the firewood has the
correct moisture content before using it for firing. Split the wood and measure the moisture content of
the split surfaces.

Page 13 of 20 pages
Recommended dimensions
The dimensions of the fuel are important to good combustion.The dimensions should be as follows:
Fuel type Length in cm Diameter in cm
Wood for kindling a fire (finely chopped) 30 2-5
Chopped wood 30 5-8
Special fire lighting guide for stoves with soapstone or natural stone cladding
Stones are natural products which need to adjust to temperature changes. We recommend following
the procedure below:
1. First stoking (drawing F)
Open the door. Place 2 pieces of wood (5-8 cm in diameter) horizontally in the
bottom of the combustion compartment (corresponding to 1-2 kg). Place 5-8
pieces of kindling randomly on top. Place 2 firelighters between the top layer of
kindling. Light up the firelighters and close the door. Set the temperature level to
level 1. Let the fire burn out and do not restoke even if there is a restoking alarm.
When the fire has died out completely, the door must be opened and stay open
while the stove cools down to room temperature. .
2. Second stoking
Open the door.Place 2 pieces of wood (5-8 cm in diameter) horizontally in the bottom of the combustion
compartment (corresponding to 1-2 kg). Place 5-8 pieces of kindling randomly on top. Place 2 firelighters
between the top layer of kindling. Light up the firelighters and close the door. Set the temperature level
to level 2.When there is a restoking alarm, you should restoke. Put at least 2 pieces of wood into the
stove, weighing up to 1 kg each with a diameter of about 7-9 cm.Allow the fire to burn and let the stove
cool to room temperature before stoking again.
3.Third stoking
Repeat the procedure for the second stoking, Set the temperature level to level 3.Allow the fire to burn
and let the stove cool to room temperature after the fire has gone out.
Restoking:
Follow the general instructions, see the sections “Lighting the stove” and “Stoking”.
Lighting the stove (drawing F)
A successful combustion process requires that the wood is lit in the right way.A cold stove and a cold
chimney challenge the combustion process. Be careful to make a good lighting with suitably dry wood,
using kindling and lighting the fire in the top layers of kindling. It is important to achieve a high flue gas
temperature quickly.
Push the air control lever (1) to the middle position. In case of a poor chimney draft push the air control
lever all the way to the right.Push the shaking grate lever (2) all the way in so that the shaking grate is closed..
Open the door. Place 2 pieces of wood (5-8 cm in diameter) horizontally in the
bottom of the combustion compartment (corresponding to 1-2 kg). Place 5-8
pieces of kindling randomly on top. Place 2 firelighters between the top layer of
kindling. Light up the fire-lighters and close the door. Select the desired room
temperature level.
As soon as the door is opened the HWAM®SmartControlTM is activated. If lighting up does not occur
within 15 minutes, the HWAM®SmartControlTM will automatically go back to standby and the dampers
in the Air box will be closed.
If the smoke temperature does not reach a high enough level after lightning or stoking, the app IHS Smart
ControlTM and the wireless room temperature sensor emit a restoking alarm,even if there is still unburned

Page 14 of 20 pages
wood and flames in the combustion chamber.The restoking alarm is emitted to make you aware that the
fire needs more energy. Restoking with small pieces of kindling wood can often provide a more rapid
and sufficient temperature rise.
The HWAM®SmartControlTM closes all three air dampers in theAir box when the stove is in standby mode.
This prevents hot air from the room to enter the chimney (heat loss).This might on the other hand result in a
very cold chimney when the stove is lit. In certain cases it is necessary to assist the draught in the chimney by
opening the door to the burning chamber 3-5 minutes before lightning the stove.Read more on www.hwam.com
about the function of the chimney.
Booster
Pull out the shaking grate lever (2) completely to activate the booster if the wood does not burn easily
due to poor chimney draft.IMPORTANT:For safety reasons, it may only be used during the first 3 minutes.
As soon as the temperature in the combustion chamber is high enough and the draft in the chimney suf-
ficient, push the lever all the way back in again.This ensures safe and efficient combustion. It reactivates
the air wash system and avoids overheating of the stove.The booster is intended solely to assist in the
event of poor draft during the first 3 minutes of the lighting process.A chimney draft of 12 Pa does not
require the use of the booster.
Important!
The ash pit must not be opened when lighting up. It must always be closed when the stove is in use.
Otherwise the HWAM®SmartControlTM does not function.The door should only be opened when
lighting up, when restoking, and when cleaning the stove. Never leave a stove before there are lasting
flames in the wood after firing!
The Thermostat Function
The HWAM®SmartControlTM will in general have an environmentally friendly combustion and adapt to
the desired room temperature.The thermostat function is designed as a radiator valve.The user enters
a desired heat level, which suits the room in which the stove is installed.When the thermostat is set at
a heat level, the control function will adapt to this temperature.
• If the room temperature is lower than the desired heat level, the HWAM®SmartControlTM increases
the flue gas temperature in order to increase the heat radiation from the stove.
• If the room temperature is higher than the desired heat level, the HWAM®SmartControlTM decreases
the flue gas temperature, thereby giving the layer of embers as long a life as possible before restoking.
This will reduce the heat radiation from the stove and facilitate restoking without having to light up
the fire anew. If the room temperature drops below the desired level, the ember phase will be short-
ened, and the HWAM®SmartControlTM will activate a restoking alarm.The HWAM®SmartControlTM
will signal that a restoking is due at the flue gas temperature of 180° C, and at 100° C the HWAM®
SmartControlTM will enter standby mode and all dampers will close.
• Should the room temperature be much lower than the desired heat level, the HWAM®SmartControlTM
increases the flue gas temperature. If a satisfactory increase in temperature does not occur, the control
will activate a restoking alarm, since it expects that more wood is needed to increase the heat level in
the room.
• If the room temperature after a new restoking still does not reach the desired level, the water content
in the firewood may be too high or the draught in the chimney too weak.The HWAM
®
SmartControl
TM
always strives for a sufficiently high flue gas temperature to ensure an environmentally friendly combus-
tion.
Stoking
When alarm for restoking sounds the stove is ready for restoking.The alarm for restoking will come via
the room temperature sensor or the acquired remote control.The app IHS Smart ControlTM will also
come with a notification that it is time for restoking if the app is opened. For more information on the
app, see details in separate manuals for the app IHS Smart ControlTM or in the Quickguide.

Page 15 of 20 pages
The amount of wood that is used for restoking should be adjusted based on the current heat demand.
In terms of combustion technique, you should always stoke the stove with at least two pieces of wood
at a time even if you only use a small amount of wood.You can also choose not to restoke. After a while
the stove will then automatically go in stand-by mode.
During combustion, the outer surfaces of the stove will become hot, and due care must
therefore be shown.
Cleaning the glass
We recommend wiping the glass after a fire.This is best done using a paper towel.
Fuelling with coal or pet coke
The stove is not approved to use coal or pet coke as a fuel.
Firing in general
Rapid or fierce heat
Rapid or fierce heat is obtained by burning many small pieces of wood.
Maximum amounts of fuel:
The maximum allowed amount of fuel per hour is:
Wood: 2.7 kg
If these limits are exceeded,the stove will no longer be covered by the factory guarantee, and it may also
become damaged due to excessive heat,the glass may turn white,for example. If the flue gas temperature
exceeds 580oC, the HWAM®SmartControlTM will revert to safety adjustments and automatically turn
down the air valves to avoid overheating.When the temperature is reduced to 450oC, the normal
functions apply again.The stove has been approved for intermittent use.
Typical re-firing interval at nominel performance
Wood: 45 min (1,23 kg)
Prolonged burning time
You achieve the slowest combustion by setting the desired room temperature at level 0. At this level
the combustion takes place with the lowest possible flue gas temperature and the ember phase will be
drawn out as long as possible.
How to achieve the best combustion
The HWAM®SmartControlTM is purposely designed to generate the cleanest and the most economical
combustion. A good combustion is achieved when the fire gets the right amount of oxygen supply at
the right time and place in the combustion chamber.The HWAM®SmartControlTM allows for variations
in external circumstances. Nevertheless, it is important to use clean and dry wood (humidity approx.
12-18%). Read more on www.hwam.com.
mainTenanCe
Cleaning
Any maintenance of the stove should only be carried out when it is cold. Daily maintenance is limited to
vacuum cleaning the stove externally, using the soft brush attachment.You can also dust the stove using a
dry, soft cloth or brush. But remember, only when the stove is cold. Do not use water, spirit or any other

Page 16 of 20 pages
kind of cleaner, as this will damage the lacquer.
Once a year, the stove should be thoroughly serviced.The combustion chamber should be cleared of ashes
and soot.The hinges and the closing hook must be greased with liquid copper fat spray (heat-resistant up
to 1100 °C), (drawing H). Lift the door approx. ½ cm and spray copper fat onto the hinge leaf.
Service inspection
Your stove should be given a thorough, preventive inspection once every two years.This includes:
• Thorough cleaning of the stove
• Checking gaskets. Replace gaskets if they are not intact or have softened
• Checking of heat insulating material and possibly replacement
• Checking of the bottom/shaking grate
• Use copper grease for hinges and locking hooks (drawing G)
All service checks must be performed by an authorised fitter. Use only original spare parts
Inside cleaning
Unless the safety fittings for transportation (2 split pins) have not already been removed, start by remov-
ing the split pins (drawing D).
The smoke shelf and baffle plate is to be removed from the stove before cleaning
• Lift the smoke shelf out of the steel rail at the back of the combustion chamber. Next, lower it beneath
the holders and slide it out (drawing E1)
• Lift each half of the steel smoke plate off the holder and remove them (drawing E2)
After sweeping, reinstall the parts in the stove in reverse order.
Ashes
The ash pan is best emptied by pulling a waste bag over the pan, tipping it and then carefully pulling it out
of the bag.Ashes are disposed of via the domestic waste collection.
Please note that there may be embers in the ashes for up to 24 hours after the fire has
gone out!
Insulation
The efficient,but porous insulation of the combustion chamber may, in time,be worn and damaged.Cracks
in the insulation are irrelevant to the efficiency of the stove. However, it should be replaced, if there are
actual holes due to parts of the lining falling off or when, due to wear and tear, it has been reduced to
less than half its original thickness.
Door/glass
A sooty glass door can easily be cleaned with a piece of moist kitchen roll dipped in ash. Go about it in
vertical movements (up and down). Follow up with a dry piece of kitchen roll.
Seals
Check frequently to ensure that seals in the door and ash pan are intact and not brittle. Failing this, they
should be replaced. Use original seals only.
Surface
Usually, it is not necessary to any treatment to the painted surfaces of the wood-burning stove.Any damage
to the paint may, however, be remedied with spray paint, which can be bought from your stove retailer.

Page 17 of 20 pages
Guarantee
The guarantee does not cover damage due to insufficient maintenance!
Maintenance Alarms
If a maintenance alarm goes off,you can continue using the wood-burning stove, but contact your retailer
as soon as possible.Your stove could be affected by impure combustion.
operaTional problemS
Blackened glass
• The wood is too damp. Only use wood stored for at least 12 months under cover and with a
moisture level of 12-18% RH
• Faulty seal in door. Fit new seal
Smoke in the room when opening door
• The grate in the chimney may be closed. Open the grate
• Insufficient chimney draft. See section on chimney or contact chimney sweep
• Soot door leaking or dislodged. Replace or refit
• Never open the door when there are still flames on the wood
Uncontrollable combustion
• Faulty seal in door or ash pan. Fit new seal
• If there is an excessive chimney draft,it may be necessary to push the air control lever all the way to the left.
Also do this when the stove is not in use, the air control lever must be pushed all the way to the left
Safety Alarms
In case the safety alarms go off, you must not use the stove. Contact your retailer as soon as possible.
At interruptions that you cannot yourself rectify, you should contact the retailer.

Page 18 of 20 pages
deClaraTion oF perFormanCe
The DoP can be downloaded from our website via the following links:
www.hwam.com/dop/4300ihs

Page 19 of 20 pages
Model
Direct heat output [kW]
Indirect heating functionality
Indirect heat output [kW]
Type of heat output/room temperature control
Wood logs with moisture content 12-18 % 72
Emissions
Particulate matter (PM)
Organic gaseous compounds (OGC)
Carbon monoxide (CO)
Nitrogen oxides (NOₓ)
Energy efficiency index
Energy efficiency class
HWAM 4340 IHS
6,0
No
-
With electronic room temperature control
Preferred fuel
Yes
mg/m
3
(13% O
2
)
28
75
1250
113
Product information on solid fuel local space heaters
according to Comission regulation (EU) 2015/1185
Nominal heat output [kW]
Electric power consumption nominal heat output [kW]
• Dispose of the items correctly i.e. separate the parts to be disposed of in material groups
6,0
0,015
0,012
0,0015
82
109
A+
Specific Precautions during Assembling, Installing & Maintenance:
Product End-of-Life/Recycling:
• Always dispose of items in a way that is as sustainable as possible and that is in line with the current
environmental protection, reprocessing/recycling and disposal technology
Space heating performance at nominal heat output
Fuel
Seasonal space heating energy efficiency
[%]
Characteristics when operating with the prefered fuel only
See installation instructions for more information
To dispose of the stove after the product life has expired, please observe the following information
Electric power consumption minimum heat output [kW]
Electric power consumption standby mode [kW]
Useful efficiency at nominal heat output [%]
HWAM A/S • Nydamsvej 53 • DK-8362 Hørning

www.hwam.com