MCZ WALL AIR 8 UP! M1 Technical specifications

Instructions in English
SEALED PELLET STOVE
WALL AIR 8 M1
WALL AIR 8 UP! M1
PART 1 - REGULATIONS AND ASSEMBLY
GBUSE AND INSTALLATION MANUAL

II
TABLE OF CONTENTS
TABLE OF CONTENTS .................................................................................................. II
INTRODUCTION ..........................................................................................................1
1WARNINGS AND WARRANTY CONDITIONS .................................................................2
2INSTALLATION.........................................................................................................8
3DRAWINGS AND TECHNICAL FEATURES....................................................................17
4UNPACKING...........................................................................................................20
5CLADDING ASSEMBLY.............................................................................................22
6OPENING THE DOORS .............................................................................................30
7USB SOCKET CONNECTION ......................................................................................33
8ELECTRICAL CONNECTION.......................................................................................34
9LOADING THE PELLETS ...........................................................................................35

1
INTRODUCTION
Technical Dept. - All rights reserved - Reproduction prohibited
Dear Customer,
Our products are designed and manufactured in accordance with standards in force, with high quality materials and using our extensive
experience in the transformation processes.
To get the best performance, we suggest you read the instructions in this manual carefully.
This installation guide is an integral part of the product: ensure that the manual is always supplied with the appliance, even if it changes
owner. If the manual is lost, you can request another copy from the local Technical Dept. or download it directly from the company’s
website.
All local regulations, including those referring to national and European standards, must be observed when installing the appliance.
In Italy, for the installation of systems with a biomass below 35KW, refer to the Ministerial Decree 37/08 and the qualied installation
technician with the suitable requirements must issue a certicate of compliance for the system installed. (By system we intend
Stove+Flue+Air vent).
REVISIONS TO THE PUBLICATION
The content of this manual is strictly technical and the property of MCZ Group Spa.
No part of this manual may be translated into other languages, adapted and/or reproduced, even in part in other mechanical and/or
electronic form or media, for photocopies, recordings or other, without the prior written authorisation from MCZ Group Spa.
The company reserves the right to make changes to the product at any time without prior notice. The proprietary company reserves its
rights according to law.
CARE OF THE MANUAL AND HOW TO CONSULT IT
• Take care of this manual and store it in an easily and quickly accessible place.
• Should this manual be lost or destroyed, request a copy from your retailer or directly from the authorised Technical assistance
department. It can also be downloaded from the company’s website.
• “Bold text”requires special attention.
• “Text in italics”is used to draw attention to other paragraphs in the manual or for any additional clarications.
• “Note”provides the reader with additional information.
SYMBOLS USED IN THE MANUAL
ATTENTION:
carefully read the corresponding message as failure to comply with the information provided may result
in serious damage to the product and danger to the persons who use it.
INFORMATION:
failure to comply with these provisions will compromise use of the product.
OPERATING SEQUENCES:
sequence of buttons to be pressed to access the menus or perform adjustments.
MANUAL
carefully read this manual or the relative instructions.

2
1-WARNINGS ANDWARRANTY CONDITIONS
SAFETY WARNINGS
• Installation, electrical connection, operating check and maintenance
must only be carried out by authorised and qualied personnel.
• Installthe product inaccordance withall local andnationallegislation
and regulations in force in the region or state.
• Only use the fuel recommended by the manufacturer. The product must not be
used as an incinerator.
• It is strictly forbidden to use alcohol, petrol, liquid fuel for lanterns, diesel, bio-
ethanol, uids for lighting charcoal or similar liquids to light/rekindle the ame
in these devices. Keep these ammable liquids well away from the appliance
when in use.
• Do not put any fuel other than wood pellets in the hopper.
• The instructions provided in this manual must always be complied with to
ensure the product and any electronic appliances connected to it are used
correctly and accidents are prevented.
• This appliance can be used by children aged 8 years and above and
persons with reduced physical, sensory or mental capabilities or lack
of experience and knowledge provided they are supervised or have
been given instructions regarding use of the appliance in a safe way
and understand the hazards involved. Children must not play with the
appliance. Cleaning and maintenance to be performed by the user
must not be carried out by children without supervision.
• The user, or whoever is operating the product, must read and fully understand
the contents of this installation guide before performing any operation. Errors or
incorrect settings may cause hazardous conditions and/or incorrect operation.
• Do not climb on or lean on the product.

3
1-WARNINGS ANDWARRANTY CONDITIONS
Technical Dept. - All rights reserved - Reproduction prohibited
• Do not dry linen on the product. Any drying racks or the like must be kept at a
safe distance from the product. Fire hazard.
• All liability for improper use of the product is entirely borne by the user and relieves
the manufacturer of any civil and criminal liability.
• Any type of tampering or unauthorised replacement with non-original spare
parts may be hazardous for the operator’s safety and relieves the company of
any civil and criminal liability.
• Many surfaces of the product get very hot (door, handle, glass, smoke outlet
pipes, etc.). Avoid coming into contact with these parts without
adequate protective clothing or suitable equipment, such as gloves
with thermal protection or“cold handle”operating systems.
• It is forbidden to operate the product with the door open or the glass
broken.
• The doors/covers on the appliance must remain closed when it is not
being used.
• The product must be powered by an electrical system that is equipped with an
eective earthing device.
• Switch the product o in the event of a fault or malfunction.
• Accumulated unburnt pellets in the burner after each“failed ignition” must be
removed before lighting again. Check that the burner is clean and positioned
properly before lighting again.
• Do not wash the product with water. Water may penetrate inside the unit and
damage the electrical insulation and cause electric shocks.
• Do not stand for a long time in front of the product in operation. Do not overheat
the room you are in and where the product is installed. This may cause injuries
and health problems.
• Install the product in a location that does not present a re hazard and is
equipped with power and air supplies and smoke outlets.
• In the event of re in the chimney, turn o the device, disconnect it from the
mains and do not open the hatch. Then contact the competent authorities.
• The product and the cladding must be stored in a dry place and must not be
exposed to weathering.

4
1-WARNINGS ANDWARRANTY CONDITIONS
• It is recommended not to remove the feet that support the product in order
to ensure adequate insulation, especially if the ooring is made of ammable
materials.
• In the event of a malfunction of the ignition system, do not force it on by using
ammable materials.
• Special maintenance must only be performed by authorised and qualied
personnel.
• Assess the static conditions of the surface on which the weight of the product
will rest and provide suitable insulation if it is made of ammable material (e.g.
wood, tted carpet or plastic).
• Live electrical parts: only power the product once it has been fully assembled.
• Disconnect the product from the 230V power supply before performing any
maintenance operations.
• Improperuseorpoormaintenanceoftheproductcancausehazardoussituations
to arise.
• It is forbidden to manually load the fuel into the brazier. Failure to
follow this warning can lead to hazardous situations.
• Before the product is restarted, always remove any unburned pellets
building up in the brazier due to failed ignition, the emptying of the
hopper or any situation that may cause this condition.

5
1-WARNINGS ANDWARRANTY CONDITIONS
Technical Dept. - All rights reserved - Reproduction prohibited
INFORMATION:
Please contact the retailer or qualied personnel authorised by the company to resolve a problem.
• Only use the fuel specied by the manufacturer.
• When the product is switched on for the rst time, it is normal for it to emit smoke due to the paint heating for the rst time.
Therefore make sure the room in which it is installed is well ventilated.
• Check and clean the smoke outlet pipes regularly (chimney tting).
• The product is not a cooking appliance.
• Always keep the cover of the fuel tank closed.
• Store this installation and user manual with care as it must accompany the product for the duration of its useful life. If the product is
sold or transferred to another user, always ensure the manual is also handed over.
INTENDED USE
The product only works with wood pellets and must be installed indoors.
PRODUCT PERFORMANCE CHECKS.
All our products undergo ITT TESTS carried out by a notied laboratory (system 3) and in accordance with (EU) Regulation number
305/2011“Construction products”, according to standard EN 14785:2006 (pellets) and“Machinery Directive”EN 303-5 (boilers).
In the case of tests for any market surveillance or inspections by third parties, please take the following warnings into account:
• to reach the declared performance levels, the product must perform an operating cycle of at least 15/20 hours beforehand
• use the average draught of the combustion smoke specied in the“product technical specications”table
• the type of pellets used must comply with current EN ISO 17225-2 regulations
• the amount of fuel may vary according to the length and caloric value of the fuel. This may require some adjustments to stay in
line with the hourly consumption specied in the“product technical specications”table. A1 pellets ensure an overall caloric value
within tight margins compared to the test pellets used. However, size considerably aects performance, therefore on average it must
not be less than 24 mm long and with a 6mm diameter
• in the case of a wood-burning product, check the correct residual moisture content of the fuel, which must not be less than 12% or
more than 20%. As the moisture increases, dierent combustion air settings are required. The settings are to be carried out via the
combustion air register, thereby modifying the mixture between primary and secondary air.
• it is required to check the operation of devices that can aect performance (for example air fans or electrical safety devices) in case
of damage due to handling.
• maximum performance can be achieved at the maximum ame and ventilation power.
• strictly comply with the withdrawal points required by regulations both in terms of emissions and temperature.
WARRANTY CONDITIONS
The company guarantees the product, with the exception of parts subject to normal wear (listed on the following page), for a
period of 2 (two) years from the date of purchase attested by:
• a document to serve as proof of purchase (invoice and/or receipt) that shows the name of the vendor and the date on which the
purchase was made;
• forwarding of the completed warranty certicate within 8 days of purchase.
Furthermore, in order for the warranty to be valid, the device must be installed and calibrated by qualied personnel, and where necessary,
the user must be issued with a declaration of conformity and correct functioning of the product.
We recommend testing the product before completion with the relative nishes (claddings, painting of walls, etc.).
Installations that do not meet the current standards, improper use and lack of maintenance as expected by the manufacturer, void the
product warranty.
The warranty is valid on the condition that the instructions and warnings contained in the user and maintenance manual are observed,

6
1-WARNINGS ANDWARRANTY CONDITIONS
and therefore the product is used correctly.
Replacement of the entire system or repair of one of its components does not extend the warranty period, and the original expiry date
remains unchanged.
The warranty covers the replacement or free repair of parts recognised as being faulty at source due to manufacturing defects.
In the event of a fault, to benet from the warranty, the customer must keep the warranty certicate and provide it along with the
document given at the time of purchase to the Technical Service Centre.
EXCLUSIONS
The warranty does not cover malfunctions and/or damage to the appliance that arise due to the following causes:
• Damage caused during transport and/or handling
• all parts that develop faults due to negligence or improper use, incorrect maintenance, installation that does not comply with the
manufacturer’s instructions (always refer to the installation guide provided with the appliance)
• incorrect sizing with regard to the use or faults in the installation or failure to implement the necessary measures to ensure proper
execution
• improper overheating of the equipment, i.e. the use of fuels not conforming to the types and quantities indicated in the instructions
provided
• further damage caused by incorrect user operations in an attempt to x the initial fault
• worsening of the damage caused by the user continuing to operate the appliance even after the fault has been detected
• in the presence of a boiler, any corrosion, deposits or breakage caused by water ow, condensation, hardness or acidity of the water,
improperly performed descaling treatments, lack of water, mud or limescale deposits
• ineciency of chimneys, ues or parts of the system aecting the appliance
• damage caused by tampering with the appliance, atmospheric agents, natural disasters, vandalism, electrical discharges, res, faults
in the electric and/or hydraulic system.
• Failure to have yearly stove maintenance performed by an authorised technician or qualied personnel shall render the warranty
void.
The following are also excluded from this warranty:
• parts subject to normal wear such as gaskets, glass, cladding and cast iron grilles, painted, chrome-plated or gilded parts, handles
and electric cables, bulbs, indicator lights, knobs, all parts which can be removed from the rebox.
• Variations in colour of the painted or ceramic/serpentine parts and crazed ceramics as they are natural characteristics of the material
and product use.
• masonry work
• system parts (if present) not supplied by the manufacturer
Any technical operations on the product to remove the aforementioned defects and consequent damage must be agreed upon with the
Technical Service Centre, who reserves the right to accept the relative appointment or not. However, said operations shall not be carried
out under warranty but as technical support to be granted as part of any potentially and specically agreed conditions and in accordance
with the fees in force for the work to be carried out.
The user will also be charged for any costs incurred to remedy the incorrect technical operations, tampering or damage to the appliance,
not attributable to original faults.
Without prejudice to the legal or regulatory limits, the warranty does not cover the containment of atmospheric and acoustic pollution.
The company declines all liability for any damage which may be caused, directly or indirectly, to persons, animals or objects as
a consequence of non compliance with any provision specied in the manual, especially warnings regarding installation, use
and maintenance of the appliance.

7
1-WARNINGS ANDWARRANTY CONDITIONS
Technical Dept. - All rights reserved - Reproduction prohibited
SPARE PARTS
In the event of a malfunction, consult the retailer who shall forward the call to the Technical Assistance Department.
Only use original spare parts. The retailer or service centre can provide all necessary information regarding spare parts.
We do not recommend waiting for the parts to get worn out before having them replaced. It is crucial to perform regular maintenance
checks.
The company declines all liability if the product and any other accessory is used improperly or modied without
authorisation.
All parts must be replaced with original spare parts.
Information for management of waste electrical and electronic equipment containing batteries and
accumulators
This symbol appears on the product, on the batteries, on the accumulators or on their packaging or on their documentation; it indicates
that the product and the batteries or the accumulators included must not be collected, recycled or disposed of with household waste at
the end of their service life.
Improper management of waste electrical and electronic equipment, batteries or accumulators can cause the hazardous substances
contained within to leak out. In order to avoid harming the environment or health, the user is required to separate this equipment, and/
or the batteries or accumulators included, from other types of waste and deliver them to the local collection centre. The distributor can
be asked to collect the waste electrical and electronic equipment under the conditions and according to the procedures laid down by
Legislative Decree 49/2014.
Separate collection and correct treatment of waste electrical and electronic equipment, batteries and accumulators contribute to
conserving natural resources, respect for the environment and ensure the protection of health.
For more information on collection centres for waste electrical and electronic equipment, batteries and accumulators, contact the
competent public Authorities for issue of the authorisations.
WHY SEALED
Products constructed with a perfectly sealed structure do not consume the room’s oxygen but draw all the air from the outer environment
(if suitably ducted) and may therefore be installed in all houses that require a high degree of insulation such as “passive”or “high energy
eciency”houses. Thanks to this technology there is no risk of smoke emissions in the room, hence no air inlets and relevant ventilation
grilles are required on the installation premises.
Consequently, there will be no more draughts of cold air in the room, which make it less comfortable and reduces the overall eciency of
the system.The sealed stove may even be installed in the presence of forced ventilation or in premises that might have negative pressure
with respect to the outside.

8
1-WARNINGS ANDWARRANTY CONDITIONS
Our solid bio-combustible products, (hereinafter called “Products”) are designed and manufactured in compliance with one of the
following European standard harmonised to Regulation (UE) no. 305/2011 for construction products:
EN 14785:“Residential space heating appliances red by wood pellets”
EN 13240:“Roomheaters red by solid fuel.”
EN 13229:“Inset appliances including open res red by solid fuels”
EN 12815:“Residential cookers red by solid fuel”
The products also comply with the essential requirements of Directive 2009/125/EC (Eco Design) and, where applicable, Directives:
2014/35/EU (LVD - Low Voltage directive)
2014/30/EU (EMC - Electromagnetic Compatibility directive)
2014/53/EU (RED – Radio Equipment directive)
2011/65/EU (ROhS)
Having specied the above, we highlight and report that:
• This manual and technical data sheet, also available on our website, bear all of the specic indications and necessary and
essential information to choose the product, to install it correctly and to properly size the smoke expulsion system;
• the Products must be installed, controlled and serviced by qualied personnel, according to the instructions in this manual
and in compliance with local laws and installation and maintenance standards in force in individual countries, so as to provide an
ecient heating system, properly sized according to the needs of the home;
• if the Products are thermally stressed, constantly operating for several hours at high power (e.g. 3, 4 hours a day at outputs P4
or P5), we recommend more frequent cleaning and reducing the interval between routine maintenance operations according to the
operating condition of the product. We furthermore point out that these operating conditions increase the risk of premature wear of
the product, especially those parts exposed to the direct heat of the re (e.g. combustion chamber), the original condition of which
can undergo modications and deterioration which, among other things, could generate noise during operation of the unit due to
mechanical expansion.
The manufacturer will not be held liable if the above information is ignored.
We therefore recommend, in addition to complying with the cleaning, routine and extraordinary maintenance instructions provided, to
make meticulous use of the unit using the intended Timer and modulation programs, to correctly manage the internal temperature of
the structure.

9
2-INSTALLATION
Technical Dept. - All rights reserved - Reproduction prohibited
The instructions in this chapter refer explicitly to the Italian installation regulation UNI 10683. In any case,
always observe the regulations in force in the country of installation.
PELLETS
Wood pellets are manufactured by extruding sawdust which is produced during the processing of natural dried wood (without paint).
The compactness of the material is guaranteed by the lignin contained in the wood itself and allows the pellets to be produced without
glue or binders.
The market oers dierent types of pellets with characteristics that vary according to the wood mixtures used.The most common diameter
on the market is 6 mm (although 8 mm diameter is also available) with a length, on average, between 3 and 40 mm. A good quality pellet
has a density of between 600 and 750 or more kg/cubic metres and a moisture content that accounts for 5 to 8% of its weight.
Pellets have technical advantages besides being an ecological fuel, as the wood residue is used completely, thereby achieving cleaner
combustion than that of fossil fuels.
While good-quality wood has a caloric value of 4.4 kW/kg (15% moisture, after about 18 months of seasoning), that of pellets is around
4.9 kW/kg. To ensure good combustion, the pellets must be stored in a dry place and protected from dirt. Pellets are usually supplied in 15
kg bags, therefore, storing them is very convenient
Good quality pellets guarantee good combustion, thereby decreasing harmful emissions into the atmosphere.
The poorer the quality of the fuel, the more often the internal parts of the brazier and combustion chamber must
be cleaned.
The main quality certications for pellets currently available on the European market guarantee that the fuel complies with class A1/A2
according to ISO 17225-2 (ex EN 14961). These certications include, for example, ENPlus, DINplus, Ö-Norm M7135, and specically
assure that the following characteristics are complied with:
• caloric value: 4.6 ÷ 5.3 kWh/kg.
• Water content: ≤ 10% of the weight.
• Percentage of ash: max 1.2% of the weight (A1 less than 0.7%).
• Diameter: 6±1/8±1 mm.
• Length: 3÷40 mm.
• Content: 100% untreated wood without the addition of binding agents (max 5% bark).
• Packaging: in sacks made from ecologically compatible or biologically decomposing material.
The company strongly recommends using certied fuel for its products (ENplus, DINplus, Ö-Norm M7135).
Poor quality pellets or others that do not comply with the characteristics specied previously may compromise the
operation of your product and can therefore make the warranty and product liability invalid
15 Kg BAG OF PELLETS

A
B
10
2-INSTALLATION
FOREWORD
The installation position must be chosen according to the room, smoke extraction system and ue. Check with local authorities whether
there are any restrictive regulations in force regarding the combustion air inlet, the smoke outlet system, the ue or the chimneypot.The
manufacturer declines all responsibility in the event of installations that do not comply with the laws in force, incorrect room air exchange,
electrical connection non-compliant with the standards and inappropriate use of the appliance. The installation must be carried out by
a qualied technician, who must issue a declaration of conformity of the system to the purchaser and shall assume full responsibility for
nal installation and consequent good operation of the product.
In particular one must ensure that:
• there is a suitable combustion air inlet and smoke outlet in compliance with the type of product installed
• other stoves or devices installed do not cause negative pressure in the room where the product is installed (for sealed appliances only,
a maximum of 15 Pa of negative pressure in the room is allowed)
• when the product is switched on there is no reux of smoke in the room
• smoke extraction takes place in full safety (sizing, smoke seal, distances from ammable materials...).
We especially recommend checking the data plates of the ue for the safety distances that must be observed in the
presence of combustible materials and the type of insulating material to be used. These indications must be followed
strictly to prevent serious harm to people and to the integrity of the home. Installation of the appliance must ensure easy access
to clean the appliance itself, the smoke outlet pipes and the ue. It is forbidden to install the stove in rooms with a re hazard.
Installation in studio ats, bedrooms and bathrooms is only permitted with sealed or closed appliances equipped with
suitable combustion air ducting directly outside. Always maintain adequate distance and protection in order to prevent
the product from coming into contact with water.
In the event there are several appliances installed, the external air inlet must be sized accordingly.
MINIMUM DISTANCES
It is recommended to install the stove detached from any walls and/or furniture, with a minimum clearance to allow eective aeration
of the appliance and a good distribution of heat in the room. Comply with the distances from ammable or heat-sensitive objects (sofas,
furniture, wood panelling, etc.) as specied below. The frontal distance from ammable materials must be at least as specied in the
product’s technical data table.
If particularly delicate objects are present, such as furniture, curtains or sofas, increase the stove distance accordingly.
If the oor is made of wood, it is recommended to t a oor protection sheet in compliance with the standards in
force in the country of installation.
Non-ammable walls Flammable walls
WALL AIR 8 M1
WALL AIR 8 UP! M1 A = 0 cm
B = 5 cm
A = 0 cm
B = 5 cm
If the oor is made of combustible material, it is recommended to use a protection made of non-combustible material (steel, glass...) that
also protects the front from any falling combusted material during cleaning operations.
The appliance must be installed on a oor with adequate load capacity.
If the existing construction does not meet this requirement, appropriate measures must be taken (for example a load distribution plate).

min.3,5 metri
AT
(A)
AP
(B)
11
2-INSTALLATION
Technical Dept. - All rights reserved - Reproduction prohibited
FOREWORD
The Flue chapter has been drawn up with reference to the provisions of European Standards (EN13384 - EN1443 - EN1856 - EN1457).
The chapter provides indications for installing an ecient and correct ue but is under no circumstances to substitute the regulations in
force, which the qualied manufacturer must be in possession of. Check with local authorities whether there are any restrictive regulations
in force regarding the combustion air intake, the smoke outlet system, the ue or the chimneypot.
The Company declines all liability relating to the poor functioning of the stove if this is due to the use of an insuciently sized ue in
violation of the standards in force.
FLUE
The ue or chimney is of great importance for proper operation of a solid fuel-burning heating appliance with forced draught, as modern
heating appliances have high eciency with cooler ue gases and consequently less draught, it is therefore crucial for the ue to be built
up to standard and always kept in perfect working order. A ue for a pellet/wood fuelled appliance must be at least category T400 (or
greater if the appliance requires so) and resistant to soot res. Smoke must be extracted through a single ue made of insulated steel (A)
or an existing ue that complies with the intended use (B).
A simple air shaft made of cement must be suitably piped. In both solutions there must be an inspection cap (AT) and/or inspection access
panel (AP) - FIG.1.
It is prohibited to connect more than one wood/pellet (*) or any other type of appliance (cowl vents ...) to the same ue.
(*) unless there are national derogations (for instance in Germany), which under suitable conditions allow for the installation of several
appliances in the same replace. In any case, strictly follow the product/installation requirements of the relative regulations/legislation
in force in that country
FIGURE 1 - FLUE

ABC
D
E
A
B
C
D
15° E
F
A
B
C
D
E
30°
F
12
2-INSTALLATION
TECHNICAL SPECIFICATIONS
Have the eciency of the ue checked by an authorised technician.
The ue must be sealed against ue gases, in a vertical direction without narrowing, be made with materials impermeable to smoke,
condensation, thermally insulated and suitable to resist normal mechanical stress over time (we recommend replaces made of A/316
or refractory material with insulated round section double chamber). It must be suitably insulated externally to avoid condensation
and reduce smoke cooling. It must be separated from combustible or easily ammable materials via an air gap or insulating materials:
check the distance specied by the chimney manufacturer according to EN1443. The chimney opening must be in the same room as the
appliance, or at most in the adjoining room, and have a soot and condensation collection chamber beneath the opening, and be accessible
via a sealed metal hatch.
FLAT ROOF
ROOF AT 15°
ROOF AT 30°
FIGURE 4
FIGURE 3
FIGURE 2
A = MIN. 1.30 metres
B = DISTANCE > 1.50 metres
C = DISTANCE < 1.50 metres
D = 0.50 metres ABOVE
HIGHEST POINT
E = 0.80 metres
F = REFLUX AREA
A = MIN. 1.00 metre
B = DISTANCE > 1.85 metres
C = DISTANCE < 1.85 metres
D = 0.50 metres ABOVE
HIGHEST POINT
E = 0.50 metres
F = REFLUX AREA
A = 0.50 metres
B = DISTANCE > 2 metres
C = DISTANCE < 2 metres
D = 0.50 metres
E = TECHNICAL VOLUME

A
B
D
60°
E
C
FA
B
C
D
E
45°
F
13
2-INSTALLATION
Technical Dept. - All rights reserved - Reproduction prohibited
ROOF AT 60° ROOF AT 45°
SIZING
The negative pressure (draught) of a ue also depends on its height. Check the negative pressure with the values indicated in the technical
specications.The minimum height of the chimney is 3.5 metres.
The interior cross-section of the ue can be round (best), square or rectangular (the ratio between the internal sides must be ≤1.5) with
the sides joined with a minimum radius of 20 mm. The dimension of the cross-section must be minimum Ø100mm.
The cross-sections/lengths of the chimneys shown in the technical data tables are indications for correct installation. Any alternative
congurations must be correctly sized in accordance with the general method of calculation of UNI EN13384-1 or other proven eciency
methods.
Some examples of ues available on the market are provided below:
AISI 316 steel chimney with
double chamber insulated with
ceramic bre or equivalent
resistant up to 400°C.
Refractory chimney with
double insulated chamber and
external lightweight concrete
cladding with cellular material
such as clay.
Traditional square-section clay
chimney with insulating empty
inserts.
Avoid products with an internal
rectangular section where the
larger side is 1.5 times the
smaller side (e.g. 20x40 or
15x30).
EXCELLENT GOOD POOR VERY POOR
FIGURE 6FIGURE 5 A = MIN. 2.00 metres
B = DISTANCE > 1.30 metres
C = DISTANCE < 1.30 metres
D = 0.50 metres ABOVE HIGHEST POINT
E = 1.50 metres
F = REFLUX AREA
A = MIN. 2.60 metres
B = DISTANCE > 1.20 metres
C = DISTANCE < 1.20 metres
D = 0.50 metres ABOVE HIGHEST POINT
E = 2.10 metres
F = REFLUX AREA

1
9
9
2
3
4
5
6
7
8
9
14
2-INSTALLATION
MAINTENANCE
The ue must be kept clean, since the deposit of soot or unburnt oils reduces the cross-section, blocking the draught and thus
compromising the ecient operation of the stove and, if large build-ups accumulate, can catch re. The ue and chimneypot must be
cleaned and checked by a qualied chimney sweep at least once a year. Once the inspection/maintenance has been performed, request a
written report that the system is safe.
Failure to perform cleaning jeopardises the system’s safety.
CHIMNEYPOT
The chimneypot is a crucial element for correct operation of the heating appliance: we recommend a windproof chimneypot (A), see
Figure 7.
The area of the opening for smoke
extraction must be at least double the
cross-section of the ue/piped system,
and arranged so that the smoke outlet
is ensured even in the presence of
strong wind. The chimneypot must
prevent rain, snow or animals from
entering the chimney. The height of
outow into the atmosphere must
be beyond the reux area caused by
the shape of the roof or any nearby
obstacles (see Figures 2-3-4-5-6).
CHIMNEY COMPONENTS
FIGURE 8
FIGURE 7
KEY:
(1) CHIMNEYPOT
(2) REFLUX CHANNEL
(3) SMOKE DUCT
(4) THERMAL INSULATION
(5) OUTSIDE WALL
(6) CHIMNEY FITTING
(7) SMOKE DUCT
(8) HEAT GENERATOR
(9) INSPECTION ACCESS PANEL

A
A B
A
C
MIN.1,5 m MIN.1,5 m
MIN.1,5 m
MIN.0,3 m
15
2-INSTALLATION
Technical Dept. - All rights reserved - Reproduction prohibited
EXTERNAL AIR INLET
It is mandatory to provide an adequate external air inlet that supplies the combustion air required for the product to work properly. The
ow of air between the outside and the installation room may be direct, through an inlet in an external wall of the room (preferable
solution see Figure 9 a), or indirect, via air intake from adjoining rooms and connecting permanently with the installation room (see
Figure 9 b). Adjoining areas may not include sleeping areas, bathrooms, garages or general areas with a re hazard. During installation it
is required to check the minimum clearances required to draw air from outside.Take into account the presence of doors and windows that
may interfere with the proper ow of air to the stove (see diagram below).
The air intake must have a minimum total net area of 80 cm2: the surface must be increased accordingly if other active generators (for
example: electric fan for stale air extraction, kitchen hood, other stoves, etc.), which may cause negative pressure in the room, are present.
Make sure that, with all appliances on, the pressure drop between the room and the outside does not exceed the value of 4 Pa (also for
Oyster appliances if the combustion air has not been suitably ducted outside). If required, increase the intake section of the air inlet, which
must be made at oor level and always protected with a bird-proof outer protection grid and in such a way that it cannot be obstructed
by any object.
It is possible to connect the air required for
combustion directly to the outside air inlet, by using
a pipe of at least Ø50mm, with maximum length of
3 linear metres. Each pipe bend must be considered
equivalent to a linear metre. To attach the pipe see
the rear of the stove.
For stoves installed in studio ats, bedrooms and
bathrooms (where allowed), it is mandatory to
connect the combustion air outside. Specically for
sealed stoves the connection must be sealed in order
not to compromise the overall sealing of the system.
A=AIR INLET
B=ROOM TO BE VENTILATED
C=INCREASE OF THE GAP UNDER THE DOOR
FIGURE 9 B - INDIRECTLY FROM THE ADJACENT ROOM
FIGURE 10
FIGURE 9 A - DIRECTLY FROM OUTSIDE

16
2-INSTALLATION
DISTANCE (metres) The air inlet must be at a distance of:
1.5 m BELOW Doors, windows, smoke outlets, cavities, ....
1.5 m HORIZONTALLY Doors, windows, smoke outlets, cavities, ....
0.3 m ABOVE Doors, windows, smoke outlets, cavities, ....
1.5 m AT A DISTANCE from smoke outlet
CONNECTION TO THE FLUE
The connection between the ue and the appliance must be via a smoke duct compliant to EN 1856-2. The connecting section must
extend no more than 4 m horizontally, with a minimum slope of 3% and with a maximum of 3 90° bends (accessible for inspection - do
not count theTee tting at the appliance outlet).
The diameter of the smoke duct must be equal to or greater than that of the outlet of the appliance (Ø 80 mm).
TYPE OF SYSTEM SMOKE DUCT
Maximum length
(with 1 accessible 90° bend)
6.5 metres
Maximum length
(with 3 accessible 90° bends)
4.5 metres
Maximum number of accessible 90° bends 3
Horizontal sections
(minimum slope 3%)
4 metres
Use smoke ducts with a diameter of 80mm or 100mm depending on the type of system, with silicone gaskets or similar sealing devices
that can withstand the high operating temperatures of the appliance (min. T200 class P1). The use of exible metal hoses made
of bre cement or aluminium is forbidden. For direction changes, we always recommend the use of a Tee tting with
an inspection cap allowing easy access for cleaning the tubes. Always ensure that the inspection cap is put back in place and sealed
hermetically with the relevant seal intact after cleaning.
It is prohibited to connect more than one appliance to the same smoke duct, or the discharge from hoods above it. It is forbidden to extract
the combustion products directly through the wall, whether into indoor spaces or outdoors.
The smoke duct must be at a minimum distance of 400 mm from ammable or heat-sensitive structures.

T
I
S
I
U
B
A
P
U
I
I
C
4
3
D
2
I
E
V
U
1
F
17
2-INSTALLATION
Technical Dept. - All rights reserved - Reproduction prohibited
EXAMPLES OF CORRECT INSTALLATION
1. Installation of Ø120mm ue with hole for the passage
of the pipe increased by:
minimum 100mm around the pipe if next to non-
ammable parts such as cement, brick, etc.; or
minimum 300mm around the pipe (or as required by
plate data) if next to ammable parts such as wood etc.
In both cases, install suitable insulation between the ue
and the ceiling.
Always check and comply with the plate data of the
ue, specically the minimum safety distances from
combustible materials.
The previous rules also apply for holes made in walls.
2. Old ue, minimum pipe Ø100mm with the inclusion of
an external access door for chimney cleaning.
3. External ue made of insulated stainless-steel pipes,
i.e. with double walls minimum Ø100mm: all securely
mounted on the wall. With windproof chimneypot. See
g. 7 type A.
4. Ducting system using Tee ttings that allow easy
access for cleaning without having to remove the pipes
U = INSULATION
V = ANY REDUCTION FROM 100 TO 80 MM
I = INSPECTION CAP
S = INSPECTION ACCESS PANEL
P = AIR INLET
T = TEE FITTING WITH INSPECTION CAP
A = MINIMUM 40 MM
B = MAXIMUM 4 M
C = MINIMUM 3°
D = MINIMUM 400 MM
E = HOLE DIAMETER
F = SEE FIG.2-3-4-5-6
FIGURE 11

520
Ø80
626 1252
176
340
18
3-DRAWINGS AND TECHNICAL FEATURES
DRAWINGS AND CHARACTERISTICS
WALL AIR 8 M1 STOVE DIMENSIONS