Dovre ZEN 100 Parts list manual

INSTALLATIEVOORSCHRIFTEN EN GEBRUIKSAANWIJZING HOUTKACHEL
INSTALLATION INSTRUCTIONS AND OPERATING MANUAL WOOD STOVE
INSTALLATION ET MODE D’EMPLOI POELE A BOIS
EINBAUANLEITUNG UND GEBRAUCHSANWEISUNG HOLZ-FEUERSTÄTTE
INSTRUCCIONES DE INSTALACIÓN Y USO ESTUFA DE LEÑA
ISTRUZIONI PER L'INSTALLAZIONE E L'USO STUFA A LEGNA
MONTERINGS- OG BRUKSANVISNING PEISOVN
03.27144.000 - 5/2014
ZEN 100
ZEN 102

Table of contents
Introduction 3
Performance declaration 4
Safety 6
Installation requirements 6
General 6
Flue 6
Room ventilation 7
Floor and walls 8
Product description 8
Installation 9
General preparation 9
Prepareconnection to outside air 10
Building into a new hearth 10
Use 12
First use 12
Fuel 13
Lighting 13
Burning wood 13
Controlling combustion air 14
Extinguishing the fire 15
Removing ash 15
Fog and mist 15
Resolving problems 15
Maintenance 16
Flue 16
Cleaning and other regularly maintenance 16
Appendix 1: Technical data 18
Appendix 2: Dimensions 19
Appendix 3: Distance from combustible
material 21
Appendix 4: Diagnosis diagram 23
Index 24
2Subject to change because of technical improvements

Introduction
Dear user,
By purchasing this heating appliance from DOVRE
you have selected a quality product. This product is
part of a new generation of energy-efficient and envir-
onmentally-friendly heating appliances. These appli-
ances make optimum use of convection heat as well
as thermal radiation (radiant heat).
Your DOVRE appliance has been manufactured
with state-of-the-art production equipment. In the
unlikely event of a malfunction, you can always
rely on DOVRE for support and service.
The appliance should not be modified; please
always use original parts.
The appliance is intended for use in a living room. It
must be hermetically connected to a properly work-
ing flue.
We advise you have the appliance installed by an
authorized and competent installer.
DOVRE cannot be held liable for any problems or
damage resulting from incorrect installation.
Observe the following safety regulations when
installing and using the appliance.
In this manual, you can read how the DOVRE heating
appliance can be installed, used and maintained
safely. Should you require additional information or
technical data, or should you experience an install-
ation problem, please first contact your supplier.
© 2014 DOVRE NV
Subject to change because of technical improvements 3

Performance declaration
In accordance with construction products regulation 305/2011
No.116-CPR-2014
1. Unique identification code of the following product type:
ZEN
2. Type, batch or serial number or other form of identification for the construction product, as pre-
scribed in article 11, subsection 4:
Unique serial number.
3. Intended use for the construction product, in accordance with the applicable harmonised technical
specification, as specified by the producer:
Stove for solid fuel without production of warm water in accordance with EN 13229
4. Name, registered trade name or registered trademark and contact address of the producer, as pre-
scribed in article 11, subsection 5:
Dovre N.V., Nijverheidsstraat 18, B-2381 Weelde, Belgium
5. If applicable, name and contact address for the authorised whose mandate covers the tasks spe-
cified in article 12, subsection 2:
-
6. The system or systems for the assessment and verification of the performance durability of the con-
struction product, specified in appendix V:
System 3
7. If the performance declaration concerns a construction product for which a harmonised norm is
issued:
The appointed KVBG agency, registered under number 2013, has performed a type test under system 3 and
has issued the test report no. H2014/0030.
8. If the performance declaration concerns a construction product for which a European technical
assessment is issued:
-
4Subject to change because of technical improvements

9. Declared performance:
The harmonised norm EN 13229:2001/A2 ;2004/AC :2007
Essential characteristics Performance Wood
Fire safety
Fire resistance A1
Distance from combustible material
Minimum distance in mm
Rear: 50 with insulation
Side: 60 with insulation
Risk of glowing particles falling out Conform
Emission of combustion products CO: 0.09% (13%O2)
Surface temperature Conform
Electrical safety -
Ease of cleaning Conform
Maximum operating pressure -
Flue gas temperature at nominal output 175 °C
Mechachanical resistance (weight carry of chimney) Not determined
Nominal output 4.75 kW
Efficiency 80.1 %
10. The performance of the product described in points 1 and 2 conform with the performance reported
in point 9.
This performance declaration is supplied under the exclusive responsibility of the producer specified
in point 4:
10/02/2014 Weelde Tom Gehem
CEO
Due to continuous product improvement, the supplied appliance specifications may vary from the description in
this brochure without prior notice having been given.
DOVRE N.V.
Nijverheidsstraat 18 Tel : [phone]
B-2381 Weelde Fax : [phone]
Belgium E-mail : [e-mail]
Subject to change because of technical improvements 5

Safety
Please note: All safety regulations must be
complied with strictly.
Please read carefully the instructions supplied
with the appliance for installation, use and
maintenance before using the appliance.
The appliance must be installed in accordance
with the legislation and requirements applic-
able in your country.
All local regulations and the regulations relating
to national and European standards must be
observed when installing the appliance.
The appliance should preferably be installed by
an authorised installer. Installers will be aware
of the applicable regulations and requirements.
The appliance is designed for heating pur-
poses. All surfaces, including the glass and
connecting tube, can become very hot (over
100°C)! When operating, use a so-called "cold
hand" or an oven glove.
Make sure there is sufficient protection if
young children, disabled persons or old people
are in the vicinity of the appliance.
Safety distances from flammable materials
must be strictly adhered to.
Do not place any curtains, clothes, laundry or
other combustible materials on or near the appli-
ance.
When in use, do not use flammable or explos-
ive substances in the vicinity of the appliance.
Avoid chimney fires by having the chimney
swept regularly. Never burn wood with the door
open.
In the event of a chimney fire: close all the
appliance's air inlets and alert the fire service.
If the glass in the appliance is broken or
cracked, it must be replaced before you can
use the appliance again.
Ensure that there is adequate ventilation in the
room in which the appliance is installed. If vent-
ilation is insufficient, combustion will be incom-
plete whereby in toxic gases can spread
through the room. See the chapter "Installation
requirements" for more information on vent-
ilation.
Installation
requirements
General
The appliance must be connected tightly to a well-
functioning flue.
For connection measurements: see "Technical
data" appendix.
Ask the fire service and/or your insurance com-
pany about any specific requirements and reg-
ulations.
Flue
The flue is needed for:
Removal of combustion gases via natural draught.
As the warm air in the flue or chimney is lighter
than the outside air, it rises.
Air intake, needed for the combustion of fuel in the
appliance.
A poorly-functioning flue or chimney can cause smoke
to escape into the room when the door is opened.
Damage caused by smoke emissions into the room is
not covered by the warranty.
Do not connect multiple appliances (such as a
boiler for central heating) to the same flue,
unless local or national regulations allow this.
In the event of two connections ensure that the
difference in height between the connections is
no less than 200 mm.
Ask your installer for advice regarding the flue. Refer
to the European norm EN13384 for a correct cal-
culations for the flue.
6Subject to change because of technical improvements

The flue must satisfy the following requirements:
The flue or chimney must be made of fire-resistant
material, preferably ceramics or stainless steel.
The flue or chimney must be airtight and well-
cleaned and guarantee sufficient draught.
A draught/vacuum of 15 - 20Pa during normal
operation is ideal.
Starting from the flue spigot, the flue must run as
vertically as possible. Changes in direction and
horizontal pieces disrupt the outward flow of com-
bustion gases and may cause soot deposits.
To prevent combustion gases from cooling down
too much, which reduces the draught, ensure that
the interior diameter is not too big.
The flue or chimney should ideally have the same
diameter as the connection collar.
For nominal diameter: see "Technical data"
appendix. If the smoke channel is well insu-
lated, the diameter may be slightly bigger (up to
2x the section of the connection collar).
The section (area ) of the smoke channel must be
constant. Wider segments and (in particular) nar-
rower segments disrupt the outward flow of com-
bustion gases.
In fitting a cover plate/exhaust cap to the flue:
make sure that the cover does not restrict the flue
outlet and that the cap does not impede the out-
ward flow of combustion gases.
The flue must end in a zone that is not affected by
surrounding buildings, trees or other obstacles.
The flue outside the house must be insulated.
The flue should be at least 4 metres high.
As a rule of thumb: 60 cm above the ridge of the
roof.
If the ridge of the roof is more than 3 metres from
the flue: use the measurements given in the fol-
lowing figure. A = the highest point of the roof
within a distance of 3 metres.
Room ventilation
For good combustion, the appliance needs air (oxy-
gen). This air is supplied via adjustable air inlets from
the area in which the appliance is installed.
If ventilation is insufficient, combustion will be
incomplete, which may lead toxic gases to
spread through the room.
As a rule of thumb, the air supply should be
5.5cm²/kW. Extra ventilation is needed when:
The appliance is in a well-insulated area.
There is mechanical ventilation, for example a cent-
ral extraction system or an extraction hood in an
open kitchen.
You can provide extra ventilation by having a vent-
ilation louvre fitted on the outside wall.
Make sure that other air consuming appliances (such
as tumble-driers, other heating appliances or a bath-
room fan) have their own supply of outside air, or are
switched off when you use the appliance.
You can also connect the appliance to an out-
side air supply. A connection kit is supplied for
this purpose. This makes additional ventilation
unnecessary.
Subject to change because of technical improvements 7

Floor and walls
The floor on which the appliance is placed must have
sufficient bearing capacity. The weight of the appli-
ance is given in the appendix “Technical Data
appendix”.
Protect flammable flooring from heat radiation
by means of a fireproof protective plate. See
the appendix "Distance from combustible
material".
Remove combustible material such as lino-
leum, carpets/rugs and similar materials below
the fireproof protective plate.
Keep sufficient distance between the appli-
ance and combustible materials such as
wooden walls and furniture.
The connecting tube also radiates heat. Ensure
that there is sufficient distance or a shield
between the connecting tube and combustible
material.
The rule of thumb for a single-walled tube is a
distance of 3x the diameter. If a lining shell is
fitted around the tube, a distance of 1x the dia-
meter is permissible.
Carpets and rugs must be at least 80 cm away
from the fire.
Use a fireproof floor plate to protect a flam-
mable floor from any ash which may fall in front
of the stove. The floor plate must comply with
national standards.
For the dimensions of the fireproof protective
plate: see the appendix "Distance from com-
bustible material".
For further requirements with respect to fire
safety, see the appendix "Distance from com-
bustible material".
Product description
4
3
6
5
7
9
10
2
11
12
1
13
8
09-20020-304
1. Connection collar
2. heat shield
3. Door
4. Bottom of the fire compartment
5. Latch
6. Air slide
7. Connection to outside air
8. Support
9. Adjustable feet
10. Extension (optional)
11. Stays (optional)
8Subject to change because of technical improvements

12. Threaded rod M8 (optional)
13. Finishing cover
Installation
General preparation
Please check the appliance immediately after deliv-
ery for damage during transport or any other dam-
age or defects. The appliance is attached to the
pallet with screws at the bottom.
If you detect transport damage or any other
damage or defects, do not use the appliance
and notify the supplier.
Remove the detachable parts from the appliance
before you begin its installation.
It is easier to move the appliance and to avoid
damage if the removable parts have been
removed.
Note the location of the removable parts, so
that you can re-position the parts in the correct
place later on.
Open door
Open the door by pulling the handle forward and
unlocking the door; see next figure.
09-20020-307
As the latch button becomes warm during use
of the appliance, a glove has been supplied
which you can use to protect your hand.
Remove fire-resistant inner plates
Vermiculite inner plates are light and tend to be
ochrous in colour on delivery. They insulate the
combustion chamber to boost combustion.
2
1
6
7 8 7
6
3
5
4
09-20020-308
Pos. Description
1 inner plate front left
2 inner plate left rear
3 inner plate at rear
4 inner plate front right
5 inner plate right rear
6 inner plate top
7 baffle plate
8 baffle plate holder
To remove the inner plates, follow the instructions
below; see previous figure.
1. First remove the inner plates on the side (1),(2),(4)
and (5) by lifting these up and out of the appliance
via the door opening.
2. Remove both inner plates (6).
3. Remove the inner plate (3).
4. Remove both baffle plates (7) from the baffle plate
holder (8).
5. Remove the baffle plate holder (8).
Remove stove base
The stove base is protected by fire-resistant inner
plates. Remove these inner plates first and then
remove the stove base from the appliance.
Subject to change because of technical improvements 9

Chamotte inner plates are ochrous on delivery.
They insulate the combustion chamber to
boost combustion.
5
4
3
2
1
1
3
09-20020-309
Pos. Description
1 side inner plate
2 inner plate front and rear
3 air guide
4 stove base
5 vents
To remove the inner plates and the stove base, follow
the instructions below; see previous figure.
1. Remove the air guides (3) on the left and right
sides.
2. First remove both inner plates (1) on the sides by
tipping them forwards and removing them from the
appliance via the door opening.
3. Remove the inner plates (2) at the front and rear.
4. Remove the stove base (4).
When reassembling the stove base, make sure
the two vents (5) are facing forward.
Prepare
connection to outside air
If the appliance is installed in a room with insufficient
ventilation, you can install the outside air connecting
kit to the appliance.
The air supply tube is 100 mm in diameter. If the tube
is smooth, it may be no longer than 12 metres. If
accessories such as bends are used, the maximum
length (12 m) must be reduced by 1 m for each access-
ory used.
Outside air intake duct through the
wall or the floor and the connection
collar
1. Make a hole in the wall or the floor (refer to
Appendix 2, "Dimensions" for a suitable position
of the hole).
2. Close the air connection tubehermetically on the
wall.
Building into a new hearth
The fireplace insert is installed in two stages:
Placing and connecting the fireplace
Building up the hearth around the fireplace.
Placing and connecting the fire-
place insert
1. Place the appliance at the right height, flat and
level.
You may wish to use the optional legs and
stays.
2. Make sure there is sufficient space between the
existing walls (insulated as per instructions) and
the rear of the appliance.
3. Connect the appliance to the flue hermetically.
4. Check the draught in the flue and the seal of the
connection on the flue gas duct by making a small,
intense trial fire with newspaper and dry, small
kindling.
Wait until new masonry has dried sufficiently.
5. For outside air supply connection: connect the out-
side air supply to the connection kit you fitted to
the appliance.
Building the fireplace
Inside the hearth you provide space for convection. In
this space the air must be able to move freely. It must
be possible for air to be drawn in for combustion pur-
poses, and the air heated by the built-in fireplace (the
10 Subject to change because of technical improvements

convection air) must be able to flow freely within the
space to be heated; see following figure.
A
A
B
C
09-20020-310
A Convection air current
B Radiated heat
C Air supply from the room to be heated
When building the hearth, follow these instruc-
tions for the convection space:
The top of the convection space must be closed air-
tight using a cover plate of non-flammable and
heat-resistant material.
The cover plate must be level and placed at least
30 cm below the flue opening in the ceiling.
Air inlet grates must be fitted at the bottom of the
hearth to allow for ambient air intake. The minimum
air inlet opening is 250 cm2. If the space is not suf-
ficiently ventilated, you must provide for outside air
to be allowed in by means of the outside air con-
nection kit or an optional adjustable damper.
Air outlet grates must be installed at the top of the
hearth just below the cover plate. The minimum air
outlet opening is 500 cm2.
The inlet and outlet grates are available as
options.
Do not use combustible material in the con-
vection space, and avoid the effect of thermal
bridging when using materials that conduct
heat.
Follow the instruction below when building the
hearth:
1. Build the base of the hearth and fit the air inlet
grates into the masonry.
You can place the air inlet grates on all sides of
the base.
Make sure the door of the appliance can swing
freely over the hearth floor.
2. Build the hearth up to the smoke dome.
Ensure that a clearance of 2 mm is maintained
between the built-in fireplace and the masonry
to accommodate the thermal expansion of the
fireplace.
3. The inside of the convection space may, if
desired, be cladded with reflective, insulating
material.
Additional cladding of the convection space pre-
vents unnecessary thermal radiation towards
outer walls and/or adjacent rooms. It also pre-
vents damage to the hearth wall insulation.
4. Build the rest of the hearth up to the flue opening
hole in the ceiling.
The masonry should not rest on the fireplace.
Use a support such as a steel beam. Leave a
clearance of at least 3 mm between the sup-
port and the appliance.
5. Close the convection space with the cover plate.
6. Put the air outlet grates under the cover plate.
Subject to change because of technical improvements 11

7. Make an opening above the cover plate in order to
prevent any pressure build-up.
The figure below provides an example of the placing of
a built-in fireplace in a hearth constructed in accord-
ance with the above instructions.
Min.5cm
Min.30 cm

A
B
C
D
E
F
G
H I
J
K
M
O
N
09-20020-303
A Flue
B Seal
C Cover plate
D Insulation 10 cm
EFireproof wall, min 10cm (e.g. cellular con-
crete)
F Combustible wall
G Convection space
H Fireproof ceiling
I Combustible ceiling
J Convection air outlet
K Insulation
M Combustible floor
N Opening to prevent pressure build-up
O Connection pipe
Place finishing cover
1. Place the four supplied magnets (2) on the side of
the frame; see following figure.
1
2
09-20020-305
2. Slide the supplied cover (1) into the frame.
Finishing
1. Re-position all removed parts in the correct places
in the appliance.
2. Ensure that the newly built hearth is sufficiently
dry before you start to use the appliance.
Never use the appliance without the fire-res-
istant inner plates.
The appliance is now ready for use.
Use
First use
When you use the appliance for the first time, make
an intense fire and keep it going for a good few hours.
This will cure the heat-resistant paint finish. This may
result in some smoke and odours. You could open win-
dows and doors for a while in the area in which the
appliance is located.
12 Subject to change because of technical improvements

Fuel
This appliance is only suitable for burning natural
wood; sawn and chopped wood that is sufficiently dry.
Do not use other fuels, as they can cause serious
damage to the appliance.
The following fuels may not be used as they pollute
the environment, and because they heavily pollute the
appliance and flue, which may lead to a chimney fire:
Treated wood, such as scrap wood, painted wood,
impregnated wood, preserved wood, plywood and
chipboard.
Plastics, scrap paper and domestic waste.
Wood
Hardwood, such as oak, beech, birch and fruit tree
wood is the ideal fuel for your stove. This type of
wood burns slowly with calm flames. Softwood
contains more resins, burns faster and sparks
more.
Use seasoned wood that contains no more than
20% moisture. The wood should have been
seasoned for at least 2 years.
Saw the wood to size and split it while it is still
fresh. Fresh wood is easier to split, and split wood
dries more easily. Store the wood under a roof
where the wind has free access.
Do not use damp wood. Damp logs do not produce
heat as all the energy is used in the evaporation of
moisture. This will result in a lot of smoke and soot
deposits on the appliance door and in the flue. The
water vapour will condense in the appliance and
can leak away through chinks in the stove, causing
black stains on the floor. It may also condense in
the chimney and form creosote. Creosote is a
highly flammable compound and may cause a chim-
ney fire.
Lighting
You can check whether the flue has sufficient draught
by lighting a ball of paper above the baffle plate. A cold
flue often has insufficient draught and consequently,
some smoke may escape into the room instead of up
the chimney. You can avoid this problem by lighting
the fire as described below.
1. Stack two layers of medium sized logs crosswise.
2. Stack two layers of kindling crosswise on top of
the logs.
3. Place a firelighter cube in the lower layer of kind-
ling and light the cube according to the instructions
on the packaging.
4. Close the appliance door and completely open the
air slider in the door.
5. Allow the fire develop into a good blaze until there
is glowing bed of charcoal. You can then add fuel
and adjust the appliance, see the chapter "Stoking
with wood".
Burning wood
After you have followed the instructions for lighting:
1. Slowly open the door of the appliance.
2. Spread the charcoal evenly across the bottom of
the stove base.
3. Stack a few logs on the charcoal.
Subject to change because of technical improvements 13

Open stacking
If the logs are stacked openly, the wood will burn
quickly as the oxygen can reach each log easily. If
you want to use the stove for a short while, make an
open stack.
Compact stacking
If the logs are stacked tightly, the wood will burn more
slowly as the oxygen can only reach some logs eas-
ily. If you want to burn wood for a longer period, make
a compact stack.
4. Close the door of the appliance.
5. Close the primary air inlet and leave the secondary
air inlet open.
Do not fill the appliance by more than a third.
Controlling combustion air
The appliance has various features for air control; see
next figure.
3
2
1
09-20020-320
The primary air regulates the air under the stove base
(1).
The secondary air regulates the air for the glass (air
wash) (2).
The secondary air has vents (3) above the grate that
allow for afterburning.
The appliance has one air control system that reg-
ulates both the primary air and the secondary air. If the
air control is fully to the right, the primary and the sec-
ondary air inlet are open. As the air slide is pushed
more to the left, this closes off the primary air inlet and
then the secondary air inlet. If the air slide is com-
pletely closed, a small air vent remains open to allow
for the afterburning; see following figure.
14 Subject to change because of technical improvements

09-20020-306
Pos-
ition Description
Primary air open (when lighting the stove)
Secondary air open (afterburning)
Glass rinse open
Secondary air open (afterburning)
Glass rinse open
Minimum secondary air inlet open (after-
burning)
Advice
Never burn wood with an open door.
Stoke the appliance regularly and thoroughly.
If you frequently burn at a low setting, tar and
creosote may be deposited in the flue. Tar and
creosote are highly combustible substances.
Thicker layers of these substances may catch
fire if the temperature in the flue increases sud-
denly. By burning the fire at a high intensity on
a regular basis, any layers of tar and creosote
will disappear.
Burning at a low intensity can also cause tar to
be deposited on the appliance window and
door.
When the outside temperature is mild, it is bet-
ter to burn wood intensely for a few hours
instead of having a low intensity fire for a long
period of time.
Control the air supply using the air vent.
The air inlet not only supplies air to the fire but
to the glass as well, so that it does not quickly
become dirty.
Open the primary air inlet for the time being if the air
supply by the secondary air inlet is inadequate or if
you want to fan the fire.
Topping up with a few logs regularly is better than
adding many logs in one go.
Extinguishing the fire
Do not add fuel and just let the fire go out. If a fire is
damped down by reducing the air supply, harmful sub-
stances will be released. For this reason, the fire
should be allowed to go out naturally. Keep an eye on
the fire until it has gone out. All air inlets can be closed
once the fire has died completely.
Removing ash
After wood has been burnt, a relatively small amount
of ash remains. This ash bed is a good insulating layer
for the stove base plate and improves combustion. It
is a good idea to leave a thin layer of ash on the stove
base plate.
The flow of air through the stove base plate must not
be obstructed. Remove the excess ash regularly.
1. Open the door of the appliance.
2. Scoop the excess ash from the appliance or use a
special ash vacuum cleaner to remove the excess
ash.
Always use an ash vacuum cleaner; using an
ordinary vacuum cleaner that has not been spe-
cially modified can cause serious damage to
an ordinary vacuum cleaner.
3. Close the door of the appliance.
Fog and mist
Fog and mist hinder the flow of flue gases through the
flue. Smoke can blow back and cause a stench. If it is
not strictly necessary, it is better not to use the stove
in foggy and misty weather.
Resolving problems
Refer to the appendix "Diagnostic diagram" to resolve
any problems in using the appliance.
Subject to change because of technical improvements 15

Maintenance
Follow the maintenance instructions in this chapter to
keep the appliance in good condition.
Flue
In many countries, you are required by law to have
your chimney checked and maintained.
At the start of the heating season: have the chim-
ney swept by a recognised chimney sweep.
During the heating season and after the chimney
has not been used for a long time: have the chim-
ney checked for soot.
At the end of the heating season: close off the chim-
ney and plug with newspaper.
Cleaning and other regularly
maintenance
Do not clean the appliance when it is still
warm.
Clean the exterior of the appliance with a dry lint-
free cloth.
You can clean the appliance interior thoroughly at the
end of the heating season:
If necessary, first remove the fire-resistant inner
plates. See the chapter "Installation" for instruc-
tions on removing and installing the inner plates.
If necessary, clean the air supply ducts.
Remove the baffle plate at the top of the appliance
and clean it.
Checking fire-resistant inner plates
The fire-resistant inner plates are consumables that
are subject to wear and tear. Vermiculite inner plates
are fragile. Do not knock the inner plates with logs.
Check the fire-resistant inner plates frequently and
replace them when necessary.
See the chapter "Installation" for instructions on
removing and installing the inner plates.
The insulating vermiculite or chamotte inner
plates may develop hairline cracks, but this
does not affect their performance adversely.
Cast-iron inner plates last a long time if you
remove frequently the ash that can accumulate
behind them. If accumulated ash behind the
cast-iron plate is not removed, the plate will no
longer be able to dissipate the heat to the sur-
roundings and this may cause the plate to warp
or crack.
Never use the appliance without the fire-res-
istant inner plates.
Cleaning the glass
Dirt clings less easily to well-cleaned glass. Proceed
as follows:
1. Remove dust and loose soot with a dry cloth.
2. Clean the glass with stove glass cleaner:
a. Apply stove glass cleaner to a kitchen sponge,
rub down the entire glass surface and give the
cleaning agent time to react.
b. Remove the dirt with a moist cloth or kitchen
tissue.
3. Clean the glass again with a normal glass cleaning
product.
4. Rub the glass clean with a dry cloth or kitchen tis-
sue.
Do not use abrasive or aggressive products to
clean the glass.
Wear household gloves to protect your hands.
If the glass in the appliance is broken or
cracked, it must be replaced before you can
use appliance again.
Ensure that no stove glass cleaner runs
between the glass and the cast-iron door.
Lubrication
Although cast-iron is slightly self-lubricating, you will
still need to lubricate moving parts frequently.
Lubricate the moving parts (such as guide sys-
tems,hinge pins, latches and air slides) with heat
resistant grease that is available in the specialist
trade.
16 Subject to change because of technical improvements

Touching-up the paint finish
Small areas of damaged paint finish can be touched-
up with a spray can of special heat-resistant paint,
available from your supplier.
Checking the seal
Check whether the door sealing rope is still in good
condition and works well. The sealing rope is sub-
ject to wear and will need to be replaced over time.
Check the appliance for air leaks. Close any
chinks with stove sealant.
Allow the sealant to harden fully before lighting
the appliance, as any moisture in the sealant
will form bubbles, resulting in a new air leak.
Subject to change because of technical improvements 17

Appendix 1: Technical data
Model ZEN
Nominal output 4.75 kW
Flue connection (diameter) 150 mm
Weight 100 -115 kg
Recommended fuel Wood
Fuel property, max. length 30 cm
Mass flow of flue gasses 5.1 g/s
Flue gas temperature measured in the measurement section 198 °C
Temperature measured at appliance exit 247 ℃
Minimum draught 12 Pa
CO emission (13%O2) 0.09 %
NOx emission (13% O2) 111 mg/Nm³
CnHm emission (13%O2) 238 mg/Nm³
Particulate emission 293 mg/Nm³
Particulate emission in accordance with NS3058-NS3059 4.76 g/kg
Efficiency 80.1 %
18 Subject to change because of technical improvements

Appendix 2: Dimensions
ZEN 100
520
415
100
765
460
395
175- 225
Max. 735
35
200
305
150
340
580
500
A
09-20020-311
A Optional extension
Subject to change because of technical improvements 19

ZEN 102
09-20020-312
415
520
765
100
460
175 -225
Max. 735
395 200
305 3535
580
375
500
150
A
A Optional extension
20 Subject to change because of technical improvements