Extraflame INSERTO COMFORT MINI User manual

PELLET STOVES
Instruction Manual
INSERTO COMFORT MINI

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Congratulations! You are now the owner of an E TRAFLAME stove!
The E TRAFLAME pellet stove is an ideal heating solution. It utilises the most advanced
technology and is manufactured to the highest standards with a contemporary design,
allowing you to enjoy the ambience and warmth of a natural flame in complete safety.
This manual tells you how to use your stove correctly. Please read the entire manual
carefully before using your stove.
IMPORTANT
Ma e sure that the dealer completes the following box with the details of the authorised
specialist who will help you if you have any problems in using your new pellet stove.
AUTHORISED SPECIALIST
Company___________________________________________________________________
Full name __________________________________________________________________
Address ______________________________________________ No._________________
Postal Code _________________ City _________________________________________
TEL. _____________________________ FA ____________________________________
All Extraflame products are manufactured according to the following directives:
• 89/106 EEC (CPD) construction materials
• 73/23 EEC (LVD) electrical safety
• 98/37 EEC machinery
• 2004/108 EEC (EMC) electromagnetic compatibility
And the following standards:
• prEN14785
• EN60335.1 EN50165 EN50366
• EN292 EN294
EN55014.1 EN55014.2 EN61000-3-2 EN61000-3-3

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Contents
1 PRECAUTIONS AND SAFETY
5
2 TECHNICAL SPECIFICATIONS
6
3 WHAT ARE PELLETS?
7
3.1 Pellet storage
7
4 SAFETY DEVICES
8
4.1 Warm air blower brea down
8
4.2 Fume exhauster brea down
8
4.3 Pellet feed motor brea down
8
4.4 Lighting failure
8
4.5 Temporary power failure
8
4.6 Electrical safety
8
4.7 Exhaust system safety
8
4.8 Pellet overheating safety
8
5 ASSEMBLY AND INSTALLATION INSTRUCTIONS
9
5.1 Glossary
9
5.2 Installation
10
5.2.1 Connection to the exhaust venting system
11
5.2.2 Chimney or single flue
12
5.2.3 Connection to the flue and combustion product exhaust venting
14
5.2.4 Chimney cap
14
5.2.5 Connection to external air inta es
15
5.2.6 Insulation, trims, facings, and safety precautions
15
5.2.7 National, regional, provincial and municipal laws
15
6 MINI COMFORT INSTALLATION
16
7 REMOTE CONTROL OPERATION
21
7.1 General description
21
7.2 Keypad
21
7.3 Display
22
8 USING THE INSERT
23
9 LIGHTING
23
10 INSERT OPERATION
24
10.1 Normal operation
24
10.2 Shutdown
24
11 USER MENUS
25
11.1 Set Temperature
25
11.2 Set Cloc
25
11.3 Set Timer
26
11.4 Day/Night
28
11.5 Pellet Feed
29
11.6 Language
30
11.7 Table of display messages
31
12 E TERNAL THERMOSTATS
33
12.1 Mechanical thermostat (optional)
33
12.2 Installing a mechanical thermostat (optional)
34
12.3 Mechanical thermostat operation
34
12.4 Mechanical thermostat operation with energy saving (Stby)
34
13 WIRING DIAGRAM
35
14 CLEANING
36
14.1 Chimney connection
37
15 BURN POT PARTITION
38
16 WARRANTY
39
17 QUALITY' CONTROL
41

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1. PRECAUTIONS AND SAFETY
The stoves manufactured in our factory are
built with the maximum dedication to the
individual components so as to protect both
the user and the installer from accidents.
Authorized personnel are therefore advised
to pay special attention to the electrical
connections after any servicing operation on
the product, especially with regard to the
stripped part of the wires, which must not
protrude in any way from the terminal bloc
to prevent possible contact with the live
parts of the wire.
Installation must be carried out by
authorized personnel, who must issue
the purchaser a declaration of
compliance of the system. The
purchaser shall assume responsibility
for the definitive installation and
consequent proper operation of the
product installed. Extraflame S.p.A.
may not be held responsible in the
event of failure to observe these
precautions.
This instruction manual constitutes an
integral part of the product. It must always
accompany the appliance, also when it is
transferred to another owner or user or
moved to another location. If the manual
gets damaged or lost, as your local service
centre for another copy.
This stove must only be used for the
applications for which it was expressly
designed.
The manufacturer declines any responsibility,
contractually or extra-contractually, for any
damage caused to persons, animals or
property by errors in installation, adjustment,
and maintenance, or by improper use.
After removing the pac aging, chec to ma e
sure that the contents are intact and
complete.
If this is not the case, contact the vendor
from whom the appliance was purchased.
The electrical components of the stove must
only be replaced by an authorized service
centre.
General stove maintenance must be carried
out at least once a year, scheduled sufficiently
in advance with the service centre.
The following safety precautions must
be observed:
Do not allow the stove to be used by
unattended children or disabled persons.
Do not touch the stove if you are bare-footed
or if parts of your body are wet or damp.
Modifying the safety or adjustment devices
without the manufacturer’s approval or
instructions is forbidden.
Never pull, detach, or twist the electrical
cables coming out of the stove, even if it is
disconnected from the electrical power.
Do not plug or reduce the size of the air vents
of the room in which the stove is installed.
The air vents are critical for correct
combustion.
Keep the pac aging materials out of the reach
of children and unattended disabled persons.

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2. TECHNICAL SPECIFICATIONS
Unit of
measurement
Mini Comfort
Insert
Height mm 1522
Width mm 950
Depth mm 800
Weight g 373
Exhaust pipe diameter mm 80
Max. heating volume m³ 180
Total power (heating power) W/h 3.0 - 9.4
Water heating power W/h /
Pellet consumption per hour g/h 0.8 - 2.0
Absorbed electrical power W 25 - 100
Lighting power W +280
Power supply V, Hz 230, 50
Hopper capacity g ~32
Water in/out pipe diameter " /
All data are indicative and not binding. The manufacturer reserves the right to ma e
technical modifications for improving the product.
*** Minimum height
The particular “adjust pipe” is pierced with 3 holes Ø 9 of
a 90 – 100 distance; for different adjustments, pierce
according to your necessity.

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3. WHAT ARE PELLETS?
Pellets are made by applying very high
pressure to sawdust; i.e. the residue of
raw timber (without paint) produced by
sawmills, carpentry wor s and other
activities involved in processing wood.
This type of fuel is completely
environmentally friendly, as no binders of
any ind are used to eep
it compact. In
fact, the compactness of the pellets over
time is guaranteed by lignite, a natural
substance found in the wood itself.
As well as being an environmentally
friendly fuel, since wood residues are
exploited to the maximum, pellets also
have technical advantages.
While the heating power of wood is 4.4
W/
g (with 15% humidity, after about
18 months seasoning), the power of
pellets is 5.3 W/ g.
The density of the pellet is 650 g/m
3
and
the water content is 8% of its weight.
For this reason, pell
ets do not need to be
seasoned to obtain a sufficient heating
yield.
Pellet diameters range from a minimum
of 5 mm to a maximum of 8 mm, though
Extraflame recommends using 6 mm
pellets.
3.1 Pellet storage
To guarantee problem-
free combustion, the
pellets must be stored in a dry place.
WARNING
THE USE OF POOR QUALITY PELLETS OR
ANY OTHER MATERIAL MAY DAMAGE THE
YOUR STOVE AND MAY LEAD TO THE
INVALIDATION OF THE WARRANTY
AND THE RELATED RESPONSIBILITIES
OF THE MANUFACTURER.

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4. SAFETY DEVICES
4.1 Warm air blower breakdown
If the blower stops for any reason, the stove automatically shuts down to prevent
overheating.
4.2 Fume exhauster breakdown
If the exhauster stops, the electronic unit immediately prevents pellet feeding.
4.3 Pellet feed motor breakdown
If the motor stops, the stove continues to operate until the minimum cooling level is
reached.
4.4 Lighting failure
If no flame develops during the lighting stage, the stove display shows “ NO ACC”. If you
attempt to light the stove again, the display shows “ATTE” which means “WAIT”. This
function reminds you that before lighting the stove, you must be sure that the
burn pot is free of dirt and debris.
4.5 Temporary power failure
The appliance will re-light automatically after a brief power failure. When the power goes
off, the stove may emit a minute quantity of smo e inside the house for a period of 3 to 5
minutes.
THIS DOES NOT POSE ANY SAFETY RISK.
4.6 Electrical safety
The stove is protected against violent power swings by a master fuse on the rear of the
stove (2A 250V delayed).
4.7 Exhaust fume safety
If the exhaust system fails, an electronic pressure switch stops the stove and an alarm is
signalled.
4.8 Pellet overheating safety
In case of overheating inside the pellet hopper, this safety device bloc s stove operation;
resetting is manual and must be performed by an authorized technician.

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5. ASSEMBLY AND INSTALLATION INSTRUCTIONS
The installation must comply with:
UNI 10683 (2005) heat generators fed with wood and other solid fuels: installation.
The chimneys must comply with:
UNI 9731 (1990) chimneys: classification according to thermal resistance.
UNI 9615 (1995) calculation of the internal dimensions of the chimneys with single connection.
UNI 7129 point 4.3.3 provisions, local rules and prescriptions of the fire brigade.
UNI 1443 (2005) chimneys: general requirements.
UNI 1457 (2004) chimneys: internal ducts in terracotta and ceramics.
5.1 Glossary
CLOSED HEARTH DEVICE
Heat generator that can only be opened to load fuel during use.
BIOMASS
Material of organic origin, excluding the material incorporated in geological formations and
fossilised.
BIOFUEL
Fuel produced directly or indirectly from biomass.
FLUE or CHIMNEY
Vertical duct for collecting and expelling combustion products from a single appliance at a suitable
height from the floor.
E HAUST CHANNEL OR PIPE
Duct or connecting element between the heat generating device and the chimney for extracting
the combustion products.
INSULATION
The series of measures ta en and materials used to prevent heat transmission through a wall
dividing rooms at different temperatures.
CHIMNEY CAP
Device located at the top of the chimney that facilitates dispersion of the combustion products in
the atmosphere.
CONDENSATE
Liquid products that form when the temperature of the combustion gas is lower than or equal to
the dew point of the water.
HEAT GENERATOR
Device that permits the production of thermal energy (heat) by the rapid transformation of the
chemical energy of the fuel by means of combustion.
AIR LOCK
Mechanism for modifying the dynamic resistance of the combustion gasses.

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E HAUST VENTING SYSTEM
A system for fume exhaust venting that is independent from the appliance, composed of a pipe or
channel, chimney or single flue, and chimney cap.
FORCED DRAUGHT
Air circulation by means of a fan driven by an electric motor.
NATURAL DRAUGHT
Draught resulting in a chimney/flue due to the difference in the volume mass existing between the
(hot) fumes and the surrounding atmospheric air, without any mechanical suction aid installed
inside or on top of it.
RADIANCE AREA
Area immediately adjacent to the hearth in which the heat produced by combustion is diffused;
this area must not contain any objects made of combustible material.
REFLU AREA
Area in which the combustion products come out from the appliance towards the room in which it
is installed.
5.2 Installation
Before carrying out installation, it is necessary to chec the positioning of the chimneys, flues or
exhaust terminal ducts of the appliance, eeping in mind the following:
•Installation prohibitions
•Legal clearances
•Limitations set forth by local administrative regulations or specific regulations of the
authorities.
•Common limitations deriving from building regulations, and easement or contract
regulations.
Admissible installations
In the room in which the heat generator is to be installed, any existing or installed appliances must
be airtight to the room and must not cause depression in the room with respect to the external
environment.
Appliances used for coo ing foods and the related hoods without extractor can only be installed in
rooms used as itchens.
Prohibited installations
The room in which the heat generator is to be installed must not contain any of the following
devices, either pre-existing or installed:
- Hoods with or without extractor;
- Ventilation ducts of the collective type.
Should these devices be located in adjacent rooms communicating with the installation room, it is
forbidden to use the heat generator simultaneously where there is the ris that one of the two
rooms may be subject to depression with respect to the other.

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5.2.1 Connection to the exhaust venting system
Exhaust channel or pipe
For the assembly of the exhaust channels it is imperative to use non-flammable materials that are
resistant to combustion products and any condensates.
It is forbidden to use flexible metal pipes and asbestos cement for connecting the stove to the
flue, also for pre-existing exhaust channels.
There must be continuity between the exhaust channel and the flue so that the flue does not lean
on the stove.
The exhaust channels must not pass through rooms in which the installation of combustion devices
is forbidden.
The assembly of the exhaust channels must be carried out in such a way as to ensure that they
are airtight for the operating conditions of the appliance, as well as to limit the formation of
condensates and prevent them from being conveyed towards the appliance.
The assembly of horizontal sections must be avoided where possible.
Where roof or wall exhaust outlets have to be reached that are not coaxial in relation to the
exhaust outlet from the appliance, the direction changes must be made using open elbows no
greater than 45° (see figures below).
For heat generating devices equipped with an electric exhaust fan, i.e. all products made by
Extraflame, it is necessary to observe the following instructions:
•Horizontal sections must have a minimum slope of 3% upwards.
•The length of the horizontal section must be as short as possible, and in any case no
greater than 3 meters.
•No more than four direction changes may be used, including the one resulting from the use
of the “T”-element. (When four bends are used, use double wall piping with a 100 mm
diameter.)
In any case, exhaust channels must be sealed in relation to combustion products and condensates,
as well as insulated, if they pass outside the installation room.
It is forbidden to use elements in counter-slope.
The exhaust channel must allow soot recovery and cleaning using a swab.
The exhaust channel must have a constant cross-section. Any changes in cross-section are allowed
only at the flue connection.
45°
45°
Insulatio
n
Flue
Inspection

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It is forbidden to run other air feed channels or piping for utilities inside the exhaust channels,
even if they are oversized. It is also forbidden to fit manual draught adjustment devices on the
forced draught appliance.
5.2.2 Chimney or single flue
The chimney or flue must meet the following requirements:
- be airtight to combustion products, waterproof and properly insulated according to the usage
conditions;
- be made of materials suitable to resist normal mechanical stress, as well as heat and the action
of combustion products and any condensates;
- have a predominantly vertical layout with deviations from the axis no greater than 45°;
- be situated at a proper distance from combustible or flammable materials by means of an air gap
or suitable insulation material;
REFERENCES Flammable
objects
Non-
flammable
objects
A 200 100
B 1500 750
C 200 100
- preferably have a round internal section: square or rectangular sections must have rounded
edges with radius no less than 20 mm;
- have a constant, free and independent internal section;
- have rectangular sections with a maximum ratio between sides of 1.5.
A
Minimum 80 cm²
Floor protection
B
20 cm
C

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The exhaust duct should be equipped with a chamber for the collection of solid materials and any
condensates located below the mouth of the exhaust channel, so that it is easy to open and
inspect from the airtight hatch.
Maximum 3 m
3
–
5 %
Inspection
Windproof
chimney
cap
Flue
Inspection
External
insulated duct
Inspection
Maximum 3 m
45°
Inspection

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5.2.3 Connection to the flue and combustion product exhaust venting
The connection between the appliance and the flue must only receive the discharge from a single
heat generator.
Direct discharge towards enclosed areas, even when roofless, is forbidden.
Direct discharge of combustion products must ta e place on the roof and the exhaust duct must
have the features set forth in the section “Chimney or single flue” .
5.2.4 Chimney cap
The chimney cap must meet the following requirements:
- have an internal section equivalent to that of the chimney;
- have a useful outlet section no less than twice the internal section of the chimney;
- be constructed in such a way as to prevent the penetration of rain, snow and foreign bodies into
the chimney, as well as to assure the discharge of the combustion products also in the presence of
winds coming from any direction and at any angle.
- be positioned in such a way as to assure proper dispersion and dilution of the combustion
products and, in any case, outside the reflux area in which the formation of counter-pressure is
most li ely to occur. This area has different sizes and shapes depending on the slope of the roof;
therefore, it is necessary to use the minimum heights indicated in the figures below.
The chimney cap must not have any mechanical suction devices.
50 cm
> 5 m
< 5 m
50 cm
< 5 m
FLAT ROOF
SLOPED ROOF
Distance
> A
Distance
< A
50 cm beyo
nd the ridge beam
H min
β
REFLU AREA
Reflux area height

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Roof slope
Horizontal width of the
reflux area from the
axis of the ridge beam
Minimum height of the
outlet from the roof Reflux area height
β A H min = Z + 50 cm Z
[°] [m] [m] [m]
15 1.85 1.00 0.50
30 1.50 1.30 0.80
45 1.30 2.00 1.50
60 1.20 2.60 2.10
5.2.5 Connection to external air intakes
To ensure correct operation, the appliance must have sufficient air available by means of external
air inta es, which must meet the following requirements:
a) They must have a total free section of at least 80 cm².
b) They must be protected by a grate, metal mesh, or other suitable protection provided that it
does not reduce the minimum section as per point a) and that it is positioned in such a way as to
prevent the inta es from being obstructed.
If the combustion air is collected directly from the outside by means of a pipe, it is necessary to fit
a downward bend or a wind hood on the outside. In addition, no grating or similar device should
be positioned. (Extraflame S.p.A. suggests creating an air inta e directly communicating with the
installation room, even if air is collected from outside by means of a pipe).
Air inflow can also be obtained from a room adjacent to the installation room, provided that the
flow can occur freely through permanent openings communicating with the outside.
The adjacent room must not be subject to depression with respect to the outside as a result of the
opposing draught caused by the presence of another utility device or suction device in this room.
In the adjacent room, the permanent openings must meet the requirements described above.
The adjacent room cannot be used as a garage, storage area for combustible material, or for
activities involving fire hazards.
5.2.6 Insulation, trims, facings, and safety precautions
The facings, no matter what type of material they are made of, must constitute a self-bearing
structure with reference to the heating assembly and not in contact with it.
The beam and the trims in wood or combustible materials must be positioned outside of the
radiant area of the hearth or be properly insulated.
If the space above the heat generator has coverings made of combustible or heat-sensitive
material, a protective membrane made of non-combustible insulating material must be placed
between it and the generator.
All elements made of combustible or flammable material, such as wooden furnishings, curtains,
etc., that are directly exposed to the radiance of the hearth must be placed at a safe distance.
5.2.7 National, regional, provincial and municipal laws
All the national, regional, provincial ad municipal laws of the country where the appliance has been
installed must be ta en into consideration.

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6. MINI COMFORT INSERT INSTALLATION
The Maxi Comfort insert is supplied with a metal
sliding base that enables it to be installed in an
existing fireplace.
The base allows you to slide out the insert easily
for maintenance and cleaning at the end of the
year. If you do not already have a fireplace, you
can build one using the insert support pedestal
(optional it), which is designed to secure the
insert to the floor.
Description of the components:
•Sliding base
•Guide rails
•Exhaust pipe
•Primary air inta e pipe
•Power outlet
•Adapter frame
Fitting with sliding base
Ta e the sliding base and place it in the existing
fireplace.
Using chal , mar the base fixing holes on the floor
of the fireplace.
Drill the holes for 8 mm steel screw anchors.
Drill a 60 mm hole in correspondence with the air
inta e.
N.B. The air intake must be made outside the
fireplace, because it must not draw in
overheated air.
Provide a power outlet on the rear of the insert, so
that the plug can be reached easily once the
installation is complete.
Fix the base using the attachment screws.
Ma e the connection to the exhaust outlet and air
inta e, following the instructions previously
described.
Then tilt the insert so that the wheels fit into the
guide rails and slide it in until the exhaust auger
coupling is completely inserted in the exhaust
conveyor box.
Finally, open the fire door and use the socket
wrench provided to turn the screw in the
lower left-hand corner clockwise.
To chec that the insert is correctly coupled with
the base, connect the plug to the power outlet: the
display should light up.
Fig. 1
Fig. 2
Fig. 3

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N.B. The insert must stand at least 1 cm
above the marble fire top of the facing.
Installation with pedestal (optional)
Description of components:
•Maxi Comfort insert
•Pedestal adjustable in height
•Side feeding hopper
•Adjustable hopper support
Installation with pedestal
Position the base in the desired point and adjust to
the desired height using the feet (the bolts are
located on the four outer edges of the pedestal at
the bottom).
Provide a power outlet on the rear of the pedestal
that will be easy to reach once the installation is
complete.
Fix the pedestal to the floor using strong steel
screw anchors 8 mm diameter.
Fix the sliding base to the frame using the bolts.
Connect the exhaust outlet and air inta e as
described in the previous section.
Then tilt the insert so that the wheels fit into the
guide rails, slide it until the exhaust auger coupling
is completely inserted in the exhaust conveyor box.
Then use the soc et wrench provided to turn the
screw anticloc wise.
To chec that the insert is correctly coupled with
the base, connect the plug to the power outlet: the
display should light up.
Fit the hopper support as shown in Fig. 10.
Insert the support in the coupling provided.
N.B.: When using our pedestal, it is necessary to
create an inspection window in the chimney that
allows you to chec the pellet level in the hopper
while filling it.
N.B. The hopper support can only be fitted
on the right-hand side of the insert.
Adjust the height and angle of the hopper
according to the fireplace to be built.
N.B. The insert must stand at least 1 cm
above the marble fire top of the facing.
Fig. 4
Fig. 5
Fig. 6

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Extracting the insert
The Comfort insert has to be extracted to carry out
routine maintenance (cleaning the ash pipe at the
end of the year) or special servicing (replacing
mechanical parts in the event of damage).
N.B. These operations must be carried out by
an authorized technician, with the stove
switched off and the plug disconnected.
To extract the insert, proceed as follows:
1. Open the fire door and use the soc et
wrench provided to turn the screw in the
lower left-hand corner anticloc wise.
2. Using the po ers provided, pull the insert
towards you until it bloc s automatically.
Fitting the frames
•Front frame
•Side frames
Attach the front frame to the two side frames.
Fix the frames to the Comfort insert using self-
tapping screws.
N.B. Any wooden beams situated above the
insert must be protected using fireproofing
material.
Frame assembly is important, as it allows
correct air circulation in the insert and
consequently the most efficient stove
operation.
Fig. 7
Fig. 8
Fig. 9
The 2 side frames are fitted to the upper
frame using 2 screws per side.
The remaining holes on the side frames
are used for attaching the entire frame
assembly to the sides of the insert using
self-tapping screws.

Page 19
Air circulation ducts
To ensure correct operation, it is necessary to create air inta es at the top of the fireplace.
These can be made in the sides of the hood or on the front.
The following measurements must be respected:
Air inta es made on both sides of the fireplace: Minimum measurement required 200 cm
2
per side.
Air inta e made on the front of the fireplace: Minimum measurement required 400 cm
2
per
side.
For fresh air inta e, it is very important to ma e one or more holes on the lower or side part of the
facing.
N.B. This ventilation system is completely independent from the combustion air
intake!!
These air circulation points must have a minimum area of 750 cm².
10 cm
45 cm
15 cm
50 cm
5 cm
5 cm
5 cm

Page 20
To ensure the correct and safe operation of the Comfort insert, when building the fireplace it is
necessary to respect the clearances between the insert and the inner walls of the fireplace.
Considering the measurements given in the technical specifications, you need to account for at
least 50 mm of air space in the upper part and on the two sides.
NB: The exhaust outlet pipe must always be at a minimum distance of 5 cm from inflammable
parts.
Warm convection air
It is necessary provide an outlet for the
heat accumulated in the facing to
prevent excessive overheating of the
insert.
Forced ventilation
The blower conveys the heat produced in
the insert into the room.
Air intake from
the room
To enable air circulation, it is necessary
to have an air inta e point, preferably at
the lower part of the structure, for better
convection. The air must be drawn from
the room where the stove is installed.
5 cm