MCZ TOBA HYDRO 22 User manual

INSTALLATION GUIDE EN
Instructions in English
PELLET STOVE
TOBA HYDRO
HYDRO 22
HYDRO 22 WITH HIGH EFFICIENCY PUMP
HYDRO 22 WITH EXCHANGER
PART 1 - REGULATIONS AND ASSEMBLY

II
TABLE OF CONTENTS
TABLE OF CONTENTS......................................................................................II
INTRODUCTION............................................................................................. 1
1  WARNINGS AND WARRANTY CONDITIONS.................................................... 2
2  INSTALLATION INSTRUCTIONS.................................................................... 8
3  DRAWINGS AND TECHNICAL CHARACTERISTICS............................................18
4  UNPACKING ............................................................................................20
5  POSITIONING ..........................................................................................21
6  INSTALLATION AND ASSEMBLY ..................................................................22
7  HYDRAULIC CONNECTION..........................................................................34
8  ELECTRICAL CONNECTION .........................................................................39

1
INTRODUCTION
Technical Dept. - All rights reserved - Reproduction is prohibited
Dear Customer,
our products are designed and manufactured in compliance with European reference Standards for construction products (EN13240
wood-burning stoves, EN14785 pellet-burning appliances, EN13229 replaces/wood-burning inserts, EN 12815 wood-burning cookers),
with high quality materials and extensive experience in the transformation processes.The products also meet the essential requirements
of Directive 2006/95/EC (Low Voltage) and Directive 2004/108/EC (Electromagnetic Compatibility).
To get the best performance, we suggest you read the instructions in this manual carefully.
This installation and use manual forms 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 service or download it directly from the
company website.
All local regulations, including those regarding national and European regulations, must be observed when the appliance is installed.
In Italy, for the installation of systems with biomass below 35KW, refer to ministerial decree D.M. 37/08, and the qualied installation
technician with the appropriate requisites must issue a certicate of compliance for the system installed. (By system one means
Stove+Chimney+Air inlet).
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 or reproduced, even in part, in other mechanical or electronic
forms, 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 the law.
CARE OF THE MANUAL AND HOW TO CONSULT IT
• Take care of this manual and keep it in an easily accessible place.
• Should the manual be misplaced or ruined, request a copy from your retailer or directly from the authorised Technical Assistance
Department. It can be downloaded from the company website.
• The "text in bold" must be read with particular care.
• The "text in italics" draws attention to other sections in this manual or clarications.
• “NOTE”provides the reader with additional information.
SYMBOLS USED IN THE MANUAL
ATTENTION:
Read the relative message with care as failure to observe the information provided could result in
serious damage to the product and put the persons who use it at risk.
INFORMATION:
failure to comply with these provisions will compromise the use of the product.
OPERATING SEQUENCES:
sequence of buttons to be pressed to access the menus or change settings.
MANUAL
carefully read this manual or the relative instructions.

2
1 - WARNINGS AND WARRANTY CONDITIONS
SAFETY PRECAUTIONS
• Installation, electrical connection, function test and maintenance
must only be carried out by authorised and qualied personnel.
• Installtheproduct in accordancewith all localand nationallegislation
and regulations in force in the region or state.
• A bad use or unproper maintainance of the product can bring to a
serious risk of explosion in the combustion chamber.
• 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 from 8 years and above
and persons with reduced physical, sensory or mental capabilities or
lack of experience and knowledge if they have been given supervision
or instruction concerning use of the appliance in a safe way and
understand the hazards involved. Children shall not play with the
appliance. Cleaning and user maintenance shall not be made 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 can cause hazardous conditions and/or poor operation.
• Do not climb on or lean on the product.
• Do not put linen on the product to dry. Any drying racks or similar objects 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 from any civil and criminal liability.

3
1 - WARNINGS AND WARRANTY CONDITIONS
Technical Dept. - All rights reserved - Reproduction is prohibited
• Any type of tampering or unauthorised replacement with non-original spare
parts could be hazardous for the operator’s safety and relieves the company
from any civil and criminal liability.
• Many of the surfaces of the product get very hot (door, handle, glass, smoke
extraction pipes, etc.). Avoid coming into contact with these parts
without adequate protective clothing or suitable means, 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
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 unburned pellets in the burner after each “failed start-up” must
be removed before lighting again. Check that the burner is clean and positioned
properly before lighting again.
• Shut the stove down in the event of a breakdown or bad running and
contact the engineer immediately.
• Pellets must not be fed manually into the burner – this wrong
behaviour can generate an abnormal amount of unburned gas, with a
risk of explosion in the chamber.
• Accumulated unburnt pellets in the burner after a failed ignitions
must be removed before lighting.
• Failure too clean and maintain the brazier can result in improper running and
explosions within the stove. Make sure you remove and clear the holes in the
brazier and any loose encrustations every time you empty the ash from the
stove or every time you have a failed ignition.Make sure that the holes in the
brazier are never reduced in size as this will aect the safe performance of the
stove if not maintained.
• Do not wash the product with water. The water could get inside the unit and
damage the electrical insulation and cause electric shocks.

4
1 - WARNINGS AND WARRANTY CONDITIONS
• A carbon monoxide alarm must be tted in the room where the appliance is
sited Refer too ADJ part 2.34 through too 2.36 page 41 (ONLY FOR UK).
• If there is a re in the ue pipe, extinguish the stove, disconnect it from the
power supply and never open the door.Then contact the competent authorities.
• Do not light the stove with ammable materials if the ignition system breaks
down.
• 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 could 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 extractors.
• In the event of re in the chimney, turn o the device, disconnect it from the
mains electricity 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.
• It is recommended not to remove the feet that support the product in order to
guarantee adequate insulation, especially if the ooring is made of ammable
materials.
• In the event of a malfunction with the ignition system, do not force it to light 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 after completing assembly.
• Disconnect the product from the 230V power supply before performing any
maintenance operation.
• IF ANY SMOKE SPILLAGE IS SEEN WITHIN THE ROOM OR THE APPLIANCE
SUFFERS FROM AN EXPLOSIVE IGNITION PLEASE TURN OFF THE
APPLIANCE, VENTILATE THE ROOM AND CONTACT THE INSTALLER/

5
1 - WARNINGS AND WARRANTY CONDITIONS
Technical Dept. - All rights reserved - Reproduction is prohibited
SERVICE ENGINEER IMMEDIATELY.
INFORMATION
• In case of any problems, get in touch with your dealer, or a qualied engineer authorised by MCZ, and if a repair is necessary, insist
on the use of original spare parts.
• Use only the fuel recommended by MCZ (for Italy pellets with a diameter of 6 mm and for other European countries with a diameter
of 6-8 mm) and provided only with an automatic supply system.
• Periodically check and clean the smoke outlet ducts (connection to the ue pipe).
• Accumulated unburnt pellets in the burner after repeated failed ignitions must be removed before lighting.
• The pellet stove is not a cooking appliance.
• Always keep the cover of the fuel hopper closed.
• Keep this instruction manual carefully because it must stay with the stove throughout its working life. If the stove is sold or
transferred to another user, always make sure that the booklet goes with the product.
• If it gets lost, ask MCZ or your authorised dealer for another copy.
INTENDED USE
The product only works with wood pellets and must be installed indoors.
WARRANTY CONDITIONS
The company guarantees the product, with the exception of elements 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 certicate of guarantee within 8 days of purchase.
Furthermore, the product must be installed and started by specialised personnel who must, where provided, issue a declaration of
conformity of the plant and of the proper functioning of the product, for the warranty to be valid and eective.
We recommend functionally testing the product before completion with the relevant nishes, where provided (claddings, painting of
walls, etc.).
Installations not meeting the current standards, improper use and lack of maintenance as expected by the manufacturer, void the product
warranty.
The guarantee is valid on the condition that the instructions and warnings contained in the use and maintenance manual are observed,
and therefore the product is used correctly.
The replacement of the entire system or the repair of one of its components does not extend the guarantee period, and the original expiry
date remains unchanged.
The guarantee covers the replacement or free repair of parts recognised as being faulty at source due to manufacturing defects.
In order to activate the product warranty the commissioning document which is supplied with the appliance and also is
available as a download from the Specue website must be lled in correctlty and returned within 14 days (ONLY FOR UK).

6
1 - WARNINGS AND WARRANTY CONDITIONS
EXCLUSIONS
The guarantee does not cover malfunctions and/or damage to the appliance that arise due to the following causes:
• Damage caused during transportation or relocation
• 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 and use manual provided with the appliance)
• incorrect dimensioning with regards to the use or faults in the installation or failure to adopt the necessary devices to guarantee
proper execution
• improper overheating of the equipment, use of fuels not conforming to the types and quantities indicated in the instructions provided
• further damage caused by incorrect user interventions in an attempt to x the initial fault
• worsening of the damage due to the continued use of the equipment by the user, once the defect has been noticed
• in the presence of a boiler, any corrosions, incrustations or breaks 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 plant aecting the equipment
• 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 the stove cleaned on an annual basis by an authorised technician or qualied personnel will result in the loss of the
warranty.
Also excluded from this guarantee are:
• parts subject to normal wear such as gaskets, glass, claddings and cast iron grids, painted, chrome-plated or gilded parts, handles
and electric cables, bulbs, indicator lights, knobs, all parts which can be removed from the hearth.
• Variations in colour of the painted or ceramic/serpentine parts and craquelure ceramics as they are natural characteristics of the
material and product use.
• masonry work
• plant parts (if present) not supplied by the manufacturer
Any technical interventions on the product to eliminate the above-said defects and consequent damages must be agreed upon with
the Technical Assistance Centre, who reserves the right to accept the relative appointment or not. However, said interventions will not
be carried out under warranty but as technical assistance to be granted at part of any eventual and specic agreed conditions and in
accordance with the fee in force for the work to be carried out.
The user will also be charged for any costs incurred to remedy the incorrect technical interventions, tampering or damage to the appliance,
not attributable to original faults.
Save for the legal or regulatory limits, the guarantee 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 prescription specied in the manual, especially warnings regarding installation,
use and maintenance of the appliance.

7
1 - WARNINGS AND WARRANTY CONDITIONS
Technical Dept. - All rights reserved - Reproduction is prohibited
SPARE PARTS
In the event of a malfunction, consult the retailer who will forward the call to the Technical Assistance Service.
Use only 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 be worn before having them replaced. It is important to perform regular maintenance.
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.
WARNINGS FORTHE CORRECT DISPOSAL OF THE PRODUCT.
The owner is the sole party responsible for demolishing and disposing of the product. This must be performed in compliance with laws
related to safety and environmental protection in force in his/her country.
At the end of its working life, the product must not be disposed of as urban waste.
It must be taken to a special dierentiated waste collection centre set up by the local authorities or to a retailer that provides this service.
Separating and recycling prevents potential negative eects on the environment and health (often caused by inappropriately disposing of
product parts). It also allows materials to be recovered in order to obtain signicant savings in energy and resources.

8
2 - INSTALLATION INSTRUCTIONS
RULES FOR INSTALLATION
The product in question is a stove that uses wood pellets.
Below is a list of the European regulations regarding the installation of the product:
EN 12828 Heating systems design.
IEC 64-8 Electrical systems with rated voltage not exceeding 1000 V AC and 1500V DC.
EN 1443 General chimney regulation
EN 1856-1 metal smoke ducts
EN 1856-2 metal smoke extraction channels
EN 1457 chimneys - Interior terracotta / ceramic ues
EN 13384-1 Chimneys - Thermal and dynamic uid calculation methods - Part 1: Chimneys connected to a single appliance
Below are some applicable regulations for Italy:
UNI10683:2012Heatgeneratorsfuelledbywoodorothersolidbio-fuels-Test,installation,controland maintenance(forthermochemical
power at the rebox lower than 35kW)
UNI/TS 11278 general technical regulation for the choice of smoke duct/ue
UNI 10847:2000 Smoke extractor systems for liquid and solid fuelled generators - Maintenance and control - Guidelines and procedures
UNI 8065 water treatment in civil plants.
UNI 9182 Hot and cold (sanitary) water supply and distribution systems.
Installation must be carried out with reference to the diagram of the heating system prepared in accordance with the
standards and local recommendations in force:
In any case, respect:
For the heating system -
Local requirements concerning the chimney connection.
Local requirements for re-ghting standards.
For electrical parts - EN 60335 ''Safety of electrical household appliances and similar''
Part 1 - General requirements
Part 2 - Special regulations for appliances with gas, gas oil and solid fuel burners with electrical connections.

9
2 - INSTALLATION INSTRUCTIONS
Technical Dept. - All rights reserved - Reproduction is prohibited
15 Kg BAG OF FUEL
The instructions in this chapter refer explicitly to the Italian installation regulation UNI 10683. In any case, always
observe the domestic regulations in force.
PELLETS
Wood pellets are manufactured by hot-extruding compressed sawdust which is produced during the working of natural dried wood. The
compactness of the material is guaranteed by the lignin contained in the wood itself and allows 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 available too) with a length, on average, of between 3 and 40 mm. A good
quality pellet has a density of between 600 and 750 or more kg/metres cubed and a water 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.
Good-quality wood has a caloric value of 4.4 kW/kg (15% moisture, after about 18 months of seasoning), whereas that of pellets is 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. (formerly EN 14961). These certications include, for example, ENPlus, DINplus, Ö-Norm M7135, and in
particular, guarantee the following characteristics:
• caloric value: 4.6 ÷ 5.3 kWh/kg.
• Moisture 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 substances (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 render the guarantee and product liability invalid.

10
B
A
2 - INSTALLATION INSTRUCTIONS
FOREWORD
The installation position must be chosen according to the room, to the smoke extraction system, to the chimney 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 chimney cap. 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
will 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 depression in the room where the product is installed (for sealed appliances only, a
maximum of 15 Pa of depression in the room is allowed)
• when the product is switched on there is no reux of smoke in the room
• fumes extraction takes place in total safety (sizing, smoke seal, distances from ammable materials..).
We especially recommend to check the data tags of the ue for the safety distances that must be observed in 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 the integrity of the home. The 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 allowed 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. Observe the distances from ammable or heat-sensitive objects (sofas,
furniture, wood panelling, etc..) as specied.The front distance from ammable materials must be at least 1 metre.
If particularly delicate objects are present, such as furniture, curtains or sofas, increase the stove clearance 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.
TOBA HYDRO
Non-ammable walls Flammable walls
A = 5 cm
B = 5 cm
A = 10 cm
B = 10 cm
If the oor is made of combustible material, it is recommended to use protection made of non-combustible material (steel, glass...) that
also protects the front from 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, one must take appropriate measures (for example a load distribution plate).

11
min.3,5 metri
AT
(A)
AP
(B)
2 - INSTALLATION INSTRUCTIONS
Technical Dept. - All rights reserved - Reproduction is prohibited
FOREWORD
This chapter on the Smoke Flue has been produced in reference to the prescriptions of European regulations (EN13384 - EN1443 - EN1856
- EN1457).
The chapter provides indications for installing an ecient and correct smoke ue but is under no circumstances to substitute the
regulations in force, which the qualied technician must be in possession of. Check with local authorities whether there are any restrictive
regulations in force regarding the intake of air for combustion, the smoke extraction system, the ue or the chimney.
The company declines all liability relating to the poor functioning of the boiler if this is due to the use of an insuciently sized ue in
violation of regulations in force.
SMOKE FLUE
The ue or chimney is of great importance for the proper operation of a solid fuel-burning heating appliance with natural draught, as
modern heating appliances have high eciency with cooler ue gasses and consequently less draught, it is therefore essential that the
ue is built up to standard and always kept in perfect working order. A ue that serves a pellet/wood fuelled appliance must be at least
category T400 (or greater if the appliance requires, 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 in cement must be suitably lined. In both solutions there must be an inspection cap (AT) and/or inspection hatch (AP)
- FIG.1.
It is prohibited to connect more than one wood/pellet or any other type of appliance (vent cowling...) to the same ue.
The stove must be connected to a ue pipe or an internal or external vertical duct conforming to EN 1856-1-2 to suit the
appliance and types of fuels to be burnt – refer to detailed guidance in sections 2, 3 and 4 in ADJ (ONLY FOR UK).
FIGURE 1  SMOKE FLUE

12
ABC
D
E
A
B
C
D
15° E
F
A
B
C
D
E
30°
F
2 - INSTALLATION INSTRUCTIONS
TECHNICAL CHARACTERISTICS
Have the eciency of the ue checked by an authorised technician.
The ue must be sealed against ue gasses, 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). Be suitably insulated externally to avoid condensation and reduce
smoke cooling. It should be separated from combustible or ammable materials with an air gap or insulating materials: check the distance
specied by the manufacturer of the replace 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
watertight metal hatch.
FLAT ROOF
ROOF AT 15°
ROOF AT 30°
A = 0.50 metres
B = DISTANCE > 2 metres
C = DISTANCE < 2 metres
D = O.50 metres
E = TECHNICAL VOLUME
A = MIN. 1.00 metres
B = DISTANCE > 1.85 metres
C = DISTANCE < 1.85 metres
D = 0.50 metres above highest
point
E = 0.50 metres
F = REFLUX ZONE
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 ZONE
FIGURE 2
FIGURE 3
FIGURE 4

13
A
B
D
60°
E
C
FA
B
C
D
E
45°
F
2 - INSTALLATION INSTRUCTIONS
Technical Dept. - All rights reserved - Reproduction is prohibited
ROOF AT 60° ROOF AT 45°
DIMENSIONING
The drop in pressure (draft) of a ue depends on its height. Check the drop in pressure with the values indicated in the technical
characteristics.The minimum height of the chimney is 3.5 meters.
The interior cross-section of the ue can be circular (best variation), square or rectangular (the ratio between the interior 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 chimneys must be correctly sized in accordance with the general method of calculation of UNI EN13384-1 or
other proven eciency methods.
Below is a list of some ues available on the market:
Steel chimney AISI 316 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
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 ZONE
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 ZONE
FIGURE 5 FIGURE 6

14
1
9
9
2
3
4
5
6
7
8
9
2 - INSTALLATION INSTRUCTIONS
MAINTENANCE
The ue must be kept clean, since the deposit of soot or unburned oils reduces the cross-section reducing the draft and thus compromising
the ecient functioning of the heater and, if large build-ups accumulate, can catch re. The ue and chimney must be cleaned and
checked by a skilled chimney sweep at least once a year. Once the check/maintenance has been performed, request a signed report stating
that the system is safe.
Failure to clean the system jeopardises its safety.
CHIMNEY
The chimney is a crucial element for the heating appliance to work properly: we recommend a wind proof chimney (A), see Figure 7.
The area of the opening for smoke
extraction must be at least double the
cross-section of the smoke duct/ue
system, and arranged so that smoke
extraction is ensured even in strong
wind. The chimney must prevent rain,
snow or animals from entering the
chimney. The height of outow into
the atmosphere must be beyond the
reux zone created by the shape of the
roof or any obstacles near the outlet
(see Figures 2-3-4-5-6).
CHIMNEY COMPONENTS
KEY:
(1) CHIMNEY
(2) REFLUX CHANNEL
(3) SMOKE DUCT
(4) THERMAL INSULATION
(5) OUTSIDE WALL
(6) CHIMNEY CONNECTION
(7) SMOKE CHANNEL
(8) HEAT GENERATOR
(9) INSPECTION ACCESS PANEL
FIGURE 7
FIGURE 8

15
A
B B
A
C
MIN.1,5 m MIN.1,5 m
MIN.1,5 m
MIN.0,3 m
2 - INSTALLATION INSTRUCTIONS
Technical Dept. - All rights reserved - Reproduction is prohibited
EXTERNAL AIR INLET
It is mandatory to provide an adequate external air intake 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; 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, garages or general areas with a re hazard. During installation one must check the minimum clearances required for air
intake from outside.Take into account the presence of doors and windows that could 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 within the room there are other
active generators (for example: electric fan for stale air extraction, kitchen hood, other stoves, etc...), which could cause cause depression
in the room. One must verify that, with all the equipment on, the pressure drop between the room and the outside does not exceed a value
of 4 Pa. If necessary 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,
with a pipe of at least Ø50mm, with maximum
length of 3linear metres; each pipe bend shall be
considered equivalent to a linear metre. To attach
the pipe see the back of the stove.
For stoves installed in studio ats, bedrooms and
bathrooms (where allowed), it is mandatory to
connect the combustion air outside. In particular
for sealed stoves the connection must be sealed
in order not to compromise the overall sealed
characteristic of the system.
FIGURE 9 A  DIRECTLY FROM OUTSIDE
FIGURE 10
FIGURE 9 B  INDIRECTLY FROM THE ADJACENT ROOM
A=AIR INLET
B=ROOM TO BE VENTILATED
C=INCREASE OF THE GAP UNDER THE DOOR

16
2 - INSTALLATION INSTRUCTIONS
DISTANCE (metres) The air inlet must be at a distance of:
1.5 m UNDER Windows, doors, smoke outlets, cavities, ....
1.5 m HORIZONTALLY Windows, doors, smoke outlets, cavities, ....
0.3 m ABOVE Windows, doors, smoke outlets, cavities, ....
1.5 m AWAY from smoke outlet
CONNECTION TO FLUE
The connection between the ue and the appliance must be via a smoke duct that conforms with EN 1856-2. The connecting section
must extend no more than 4 m horizontally, with a maximum incline of 3% and containing a maximum of 3 90% bends (accessible for
inspection - do not count the T joint at the appliance outlet).
The diameter of the smoke duct must be equal to or greater than that of the appliance outlet (Ø 80 mm).
TYPE OF DEVICE SMOKE DUCT
Minimum vertical length 1.5 metres
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 incline 3%)
4 metres
Use a smoke duct according to the regulations in force in the country of installation and verify that it is compatible with the product and
installation characteristics. The temperature class of the smoke duct must exceed operating temperatures of the appliance.
It is prohibited to connect more than one appliance to the same smoke duct, or the discharge from overhead cowling. It is prohibited to
extract the products of combustion directly through the wall, whether into indoor spaces or outdoors.
Should there be ammable or heat-sensitive structures, the smoke duct must respect the safety distances specied in the data plate.
SUPPLEMENTARY ISTRUCTIONS ONLY FOR UK
FOR CONNECTION TO THE FLUE PIPE, NOT MORE THAN 150mm OF HORIZONTAL PIPE MUST BE USED AND NOT MORE THAN 4 x
45° bends MUST BE USED. I accordance with UK Building Regulations .
All exterior ue or ue used internaly above 1.8m should be twin wall insulated pipe installed in accordance with ADJ reference page 23
section 1.31 and 1.32 and 1.33 & Hetas regulations.
The external uepipe must have internal dimensions of a minimum of 150mm, and maximum 180mm.
Check with suitable instruments that there is a minimum draught of 5 Pa. on low re and 10pa on high re. The ue must
always run under negative pressure and a cold ue pull of – 2>3 pascals must be secured.

17
T
I
S
I
U
B
A
P
U
I
I
C
4
3
D
2
I
E
V
U
1
F
2 - INSTALLATION INSTRUCTIONS
Technical Dept. - All rights reserved - Reproduction is prohibited
EXAMPLES OF CORRECT INSTALLATION
1. Installation of Ø150mm ue with hole for the passage
of the tube increased by:
minimum 100 mm around the tube if next to non
ammable parts such as cement, brick, etc.; or
minimum 300 mm around the tube (or as prescribed by
data tags) if next to ammable parts such as wood etc.
In both cases, install suitable insulation between the ue
and the ceiling.
Always check and respect the data tags on the ue,
in particular 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 wind-proof chimney. See g.
7 type A.
4. Ducting system usingT joints that allow easy access for
cleaning without having to remove the tubes
FIGURE 11
U = INSULATING
V = ANY REDUCTION FROM 100 TO 80 MM
I = INSPECTION CAP
S = INSPECTION ACCESS PANEL
P = AIR INLET
T = T JOINT 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

18
534
523
Ø48 Ø80
1100
10
261
186
338
211
3 - DRAWINGS AND TECHNICAL CHARACTERISTICS
DRAWINGS AND CHARACTERISTICS
TOBA HYDRO DIMENSIONS (dimensions in mm)