INSTALLATION AND SERVICE INSTRUCTIONS FOR
FIREPLACE INSERTS
Important
• Inform your local chimney sweep!
• Read the complete installation and service instructions!
• Keep the regulations and orders of these instructions during installation and service of this fireplace insert!
• Keep the appropriate standarts during fireplace insert installation and service!
• Keep these instructions in a safe place!
• These instructions contain the Equipment Certificate!
„BLANZEK“ open fires ČSN EN 13 229 W
Congratulations!
You have chosen a product of high quality, the „BeF“ fireplace insert. Read carefully these service instructions. You will get the information
about function and operation of your fireplace insert, you will increase its value and its service life. Also you can save fuel and protect the
environment. We are convinced that your fireplace insert will be to your full satisfaction and give you many hours of pleasure if you follow the
advice and instructions in this manual. An Equipment Certificate is included.
We ask you please to read this manual as well as the instructions for your specific model before beginning the
installation.
We can provide a guarancy for our products only when the instalation and service instructions are kept.
Essentials requirements:
- It is necessary to ensure that the whole unit with connecting pieces and chimney will be safe during operation. The whole unit must be safe
and easy to clean.
- THE DATA OF SAFETY PRECAUTIONS FROM THE POINT OF VIEW OF FIRE PROTECTION IN ACCORDANCE WITH ČSN 06
1008.
The fireplace insert must be installed, so that all required demands of ČSN 06 1008 have been kept.
- Be especially careful to maintain a minimum distance from any combustible objects during the fireplace installation.
- The minimum safe distance from combustible material with combustibility degree of B, C1 and C2 is min. 200 mm. For a cobmustibility
degree of C3 and for unsubtantiated combustibility degree in accordance with national technical standards and regulations it is necessary to
double the distance.
- The unit may be used in a normal environment in compliance with national technical standards and regulations. When this environment
changes and there could be a temporary fire or explosion risk (e.g. at work with paint substances, at linoleum mounting, etc.) the unit must
be removed immediately.
- Note: The fireplace insert must be situated a safe distance from other domestic equipment.
Information about the combustibility level of some construction materials:
The combustibility level of the construction material
A incombustible - granite, sandstone, concrete, aerated concrete, bricks, ceramics facing
B hardly combustible - acumin, heraclit, plasterboard, itaver
C1 hard combustibility – leafy wood, plywood, hardened paper, Formica TM
C2 medium combustibility – cork sheets, india-rubber, floor material
C3 easily combustible – wood-fibre sheets, polystyrene, polyuretane, PVC,
Position:
Fireplace inserts can be positioned only in rooms and in places which are risk free. There must be any electric wires in walls and in ceilings
where a jacketed chimney insert is installed. In rooms where a fireplace insert is situated there must be sufficient fresh-air inlet for combustion.
The base where the fireplace insert is situated must be made and must be large enough to permit the firebox to work correctly.
Fireplace inserts must not be located:
- On stairways (except houses where a maximum of two flats are situated)
- On corridors open to the public
- In rooms where easily combustible or explosive materials or mixtures are stored or manufactured
- In flats or areas which are aired only by means of ventilators or hot-air heaters or when the safe function of an open fire is not ensured. The
open fire operation is not endangered when:
- there is air circulation only in one room
- there is safety equipment which can reliably present a vacuum arising in a room where the fireplace is situated even in connected
ventilation areas
- there is no need of air combustible volume for fireplace inserts and vetilator jet capacity. Even if the facility adjusting is changed there is
nearly no vaccum in areas where the fireplace insert is situated and in connected aired areas.
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Heating output:
Bear in mind the information written in the Equipment Certificate. The heating potential of the fire depends on the output stated.
Output is applicable to rooms which correspond to the Heat Safety Protection regulations. In rooms which are more than 200 cubic metres it is
necessary to count the heat consumption.
The area must be provided with at least one door which leads into an open space, or with a window which can be opened, or it must be
connected with other rooms. Only rooms of the same flat or dwelling are counted. If there is not enough, the room where the fireplace insert is
located must be provided with a combustion air escape tube which leads into an open space and supplies at least 360 cubic metres/hour
combustion air /1 square metre into the firebox. To other fireboxes except this at least 1.6 cubic metres of combustion air/hour and on each kW
of total nominal heat output when the initial pressure difference was 4 Pa as compared to an open space are needed (except fireboxes which are
located in areas that do not depend on air in a room, do not need a smoke flue or are located in areas where the operating safety of inserts cannot
be endangered).
- It is recomended that combusting air is supplied towards a fireplace in a convection area
- It is neccessary to arrange tubing for combusting air in buildings with more than two floors, as stipulated by local building regulations, and
Fireplace insert location and combustion air inflow:
tubings for combusting air which connect antifire walls, so that fire and smoke cannot spread into other floors or fire compartments.
It is neccessary to take deformation resistance into account during tubing batching, ecpecially during curve, branch pipe or long pipe
It is possible to use data from the Equipment Certificate when setting the dimension of combusting air flow piping
Ask your chimney sweep for expert assistance.
A fireplace insert must be connected into a chimney in accordance with national technical standards and regulations. Connection must be done
only with a chimney sweep´s permission. The chimney must be directly connected, dry and lined with fire-bricks.
If the fireplace insert should be connected to a chimney already built, it is neccesary to clean the chimney and a chimney sweep must check its
tightness and condition. A chimney sweep also checks if the chimney is suitable for fireplace insert connection. In cases when the chimney does
not exist or it is not suitable the new chimney dimensions must be according to the Equipment Certificate. Low effective height limit of a stack
flue is 5 m if counted from the discharge of combustion products slot. In single cases it is possible to connect even to a stack flue with less
effective height than 5 m. It must be documented by a calculation of combustion products way that this height is enough for the connection. The
fireplace insert must have its own chimney.
Chimney parameters:
Chimney parameters in line with EN 13384-1are found in the
Equipment Certificate.
Ceiling (floor) protection:
Ceilings without a sufficient lateral distribution (e.g. wooden
ceilings) must be protected by a 6 cm thick concrete layer and 6 cm
thick brick damp course where the fireplace insert is situated.
Consulting a structural engineer is recommended. If the floor, where
the fireplace insert will be situated, has an adequate lateral
distribution a 6 cm thick brick damp course is enough.
The floor in front of the fireplace insert:
A floor made of combustible material in front of the fireplace insert
must be protected by an adequate non-combustible material layer.
Dimensions of this non-combustible area are at least: 800 mm in the
sideways direction of the opening side and 400 mm to the front in
the direction of the opening side.
The chimney connection:
If the existing chimney is not provided with a suitable connecting
fitting for the fireplace insert it is necessary to make an additional
connection. The chimney connection height is arrived at the
properly situated fireplace insert and an attached smoke flue elbow
and a connecting fitting – measured from the top edge of the support
plate to the centre of the connecting fitting in the entrance of the
connecting area. Gaps for the surround, insulation, expansion joint,
etc. must be taken into account.
Brick veneer and thermal side and back wall insulation:
The brick veneer and thermal insulation can be made after the
fireplace insert installation.
installations.
(inflow o fair/hour).
Adequate chimney:
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Required brick veneer and thermal insulation:
Minimal thermal insulation of protected building panels was defined during the test of Blanzek fireplace inserts in accordance with ČSN EN 13
229. During the test the thermal insulation made of cellular calcium-silicate slabs was used ρ = 250kg/m3. It is neccessary to use this kind of
material in the prescribed minimal thickness.
These preventive requirements have been set:
back wall 100 brick veneer
side wall 100
brick veneer replacement insulation acc. to AGI Q 132
thermal insulation layer
*floor 25 mm or 25 mm of insulation under the fireplace insert
Minimum distances of the fireplace insert from the inner side of the insulation:
- Side wall 80 mm from the insert surface to the inner side of the insulation
- Back wall 80 mm from the insert surface to the inner side of the insulation
- Floor 300 mm from the bottom edge of the space for wood to the top edge of floor insulation
- Ceiling 330 mm from the top edge of the inner part of ceiling insulation
1. Brick veneer: a 10 cm thick mineral brick veneer must be made exactly on the protected building wall (back wall where appropriate side
wall). The brick veneer must abut onto the insulation layer and on the protected building side. It must over-lap the connecting piece
(venting) upwards by at least 20 cm. The insulation brick veneer is not neccessary when the building wall is 10 cm distant at least and is not
made of combustible material and it is not a structural concrete-steel wall.
2. Ceiling of the room above the insert (brick veneer replacement): if the open space or the coating above the insert extends to the room
ceiling, it is neccessary to protect the ceiling when it is made of combustible material or it serves as a carrying element. The protection
consists of a 6 cm conductive (better is 10 cm) thick thermal insulation layer (insulation material index. 12.07.21.75.11 according to AGI
Q 132). It is recommended to take this preventive measure as a base intermediate floor e.g. made of sheet-metal) with the insulation
material situated above it.
ceiling in the surround 60
floor 25/25*
side wall 30
back wall 30
convection air ceiling intermediate floor 30/30
BLANZEK
thickness/mm
3. Thermal insulation: convection coating and convection access plate (exogenous
profile of the facility) need to be coated from all quarters by the thermal insulation
layer. The thermal insulation must be without joints and must over-lap each other
on the sides. If these insulating boards are not fixed on walls, on coating or on
abutting boards, it is neccessary to fix them cca 30 cm apart. The coating inwards
the room (aperture) does not need to be insulated when the insert is designed in
such a way that the coating surface and the surface of the wood storing chamber
could reach a temperature of 85°Celsius. For surfaces made of mineral construction
material, except for the areas where objects could be detached, the temperature is
120°Celsius. Thermal insulation layers made of rock wool or comparable material
must be thoroughly coated from the room side and convection air area as a
protection against fibre fraying.
4. If the connecting piece goes through the parts with combustible materials (e.g.
protective wall), it is necessary to keep instructions in compliance with national
technical standards and regulations. In fireplace inserts which are not provided by
the butterfly valve exactly in the bellmouth, it is possiblke to put a part with a
butterfly valve (3) between the fireplace insert (1) and the connecting piece (2).
The part must be provided by a screw to protect it against sliding. The valve shaft
goes through the wall bushing (4). The shaft must not be blocked.
Permited thermal insulation material and material for brick veneers (minimal
1. Thermal insulation: cellular calcium-silicate slabs ρ = 250kg/m3, mineral wool
boards, ceramics fibre boards.
2. Brick veneer and surround: Liapor, bricks, concrete, no-fines concrete, stone.
3. Alternate brick veneers and thermal insulation material: must be authorized. They
must also fulfill every requirement for thermal insulation and surrounds. Further
information about these construction materials can be obtained from special shops.
requirements)
Connection of the fireplace insert:
The fireplace insert can be connected with the chimney by connecting pieces. The insert
is connected to the chimney air channel by a steel smoke flue with a maximum length of
1.5 m. There must be a safety pin on the smoke flue bellmouth to prevent slippage.
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It is not allowed to put any other attachment which is not approved by the manufacturer into the chimney
connection. The fireplace inserts with the valve and with the lift-up door must be lined, so that service controls and
In the top part of the surround unclosed convection air holes for a convection air vent are neccessary, in the bottom part of the surround, air input
is neccessary. The minimal diameters are specified in the Equipment Certificate.
After the fireplace installation neither the air input nor the air vent can be restricted by building panels.
To prevent heat accumulation the holes must be open during heating. No lockable grates, ribs, blinds, etc. can be installed into the
holes. In the top part the convection coating must be finished by the partition wall above the hole so as not to make a thermal pocket ( see
surround diagram).
Convection cross-section between the insert and the coating as well as the insulation on the rear side:
Minimum distance between the fireplace insert and the lateral coating made of non-combustible material: 50-80 mm (in accordance with the
Equipment Certificate).
The lateral face of the door frame can touch the thermal insulation in front.
Minimum range between the fireplace insert and the back insulation, respectively the wall made of non-combustible material: 80 mm.
Note: These minimal distances must be kept to on all heights and widths of the fireplace insert so as to allow
mendings can be done.
Convection air holes:
convection air to flow through.
A prefabricated area for convection air is not used (lining made of a galvanized sheet), it
is neccessary to maintain a distance of 80 mm between the fireplace insert and rear
thermal insulation layer.
The fireplace insert can be placed on a fitted base after the making of the thermal
insulation as in the installation instructions. The fireplace insert is connected with the
chimney by the connecting piece (smoke flue).
It is neccessary to have an extension joint at least 3 mm thick between the insert and the
coating. (For inserts with a lift-up door 5 mm is preferable). The extension joint can be
sealed by a rope or sealing tape.
The coating of the fireplace insert which leads into the room must be made of noncombustible material of grade A (e.g. tiles, plaster coat, iron or ceramic tiles). There
must not be any direct contact between the coating and the fireplace insert. The
coating may over-lap only on the separate carrying frame which is clamped to the wall.
For maintenance and possible repairs it is necessary to provide the surround with
service holes.
Ornamental beams are allowed in front of the fireplace coating at a distance of 1 cm at
least if the ornamental beam is not a part of the building and the intermediate space is
such that it does not accumulate heat and the ornamental beam is not situated within the area of the insert heat radiation.
Convection air area:
The fireplace insert assembly:
Extension joint:
Coating (fireplace surround):
Ornamental beams:
Fire protection in a heat radiation area:
A minimum distance of 80 cm forwards and sideways must be retained in front of the firebox hole (1).
If the protection against heat radiation is from both sides, a distance of 40 cm is enough (2).
Fire protection above a heat radiation area:
A minimum distance of 5 cm from the outer space of the insert coating to non-combustible building panels must be retained. Air space must be
clear so as not to accumulate heat (3). Building panels covering only small coated areas of the fireplace insert, e.g. floors, wall coating and
thermal insulation layers may abut onto the coating (4). Wider combustible building panels, e.g. ornamental beams, may be at a distance of 1 cm
from the insert coating (see Ornamental beams).
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Fireplace insert location diagram:
The fireplace insert is made in accordance with ČSN EN 13 229 without the
coating of convection air, made in the company.
1. Protected ceiling made of combustible construction material or as a
conductive element
2. Artificial construction material: heating protective measure in
accordance with national technical standards and regulations
3. Connecting pieces made of steel sheets
4. Thermal insulation layer: back wall, side wall, ceiling, convection air
chamber (see page 4)
5. Brick veneer
6. Protected wall made of combustible construction material or a
conductive element made of concrete or iron concrete
7. Combustion air input
8. Outer-air flap valve
9. Thermal insulation layer
10. Conductive plate
11. Protected base plate made of combustible material or a conductive
element
12. Anti-dazzle floor protection made of non-combustible material
13. Convection air input
14. Coating
15. Fireplace insert
16. Conductive frame
17. Ornamental beam
18. Butterfly valve
19. Grate o fair output
20. Conductive element
21. Thermal insulating layer (brick veneer replacement), of 6 cm
22. Heating area of 80 cm
Firebox running:
Blanzek fireplace inserts are suitable either for closed or open spaces.
The room must always be guarded against sparks and hot
pieces of wood from an open fire.
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Fireplace insert location diagram:
The fireplace insert is made in accordance with ČSN EN 13 229 with the coating of
convection air, made in the company.
1. Protected ceiling made of combustible construction material or as a
conductive element
2. Artificial construction material: heating protective measure in accordance with
national technical standards and regulations
3. Connecting pieces made of steel sheets
4. Thermal insulation layer: back wall, side wall, ceiling, convection air chamber
(see page 4)
5. Brick veneer
6. Protected wall made of combustible construction material or a conductive
element made of concrete or iron concrete
7. Combustion air input
8. Outer-air flap valve
9. Thermal insulation layer
10. Conductive plate
11. Protected base plate made of combustible material or a conductive element
12. Anti-dazzle floor protection made of non-combustible material
13. Convection air input
14. Coating
15. Fireplace insert with a coating of convectional air
16. Conductive frame
17. Ornamental beam
18. Butterfly valve
19. Grate o fair output
20. Conductive element
21. Thermal insulating layer (brick veneer replacement), of 6 cm
22. Heating area of 80 cm
23. Isolated tube for air distribution
Suitable fuel:
Fireplace inserts can be operated only with the following fuel:
It is neccessary to supply a sufficient amount of external air into the room when
using the fire. Both open and closed fireplaces require an adequate amount of fresh
air. The steps for combustion air input cannot be changed and combustion air inputs
must be open during the working operation of the firebox.
To prevent heat accumulation the incoming and outgoing grates of convection air
must be open when using the fire. At least one orifice into the room must be open.
All distributions which are situated besides the surround must be isolated by reason
of warm air loss prevention and fire safety. The space between the insulation and
the coating must be provided with a hole for ventilation of min. area 800 cm2.
No items made of combustible material are allowed to be put within a distance of 5 cm from the fire.
within a distance of 80 cm.
Do not forget that heaters have hot surfaces. Use the enclosed protective glove when working with the fire. You could be in a heat radiation area
only during mending, and if there is further contact the skin can be burnt. Keep the fireplace out of the reach of children.
- Dry wooden logs
Combustion air input:
Convection air:
Fire protection above a heat radiation area:
Fire protection in a heat radiation area:
No combustible material (e.g. furniture, carpets, plants, etc.) is allowed to be put in front of, or at the side of the fire
Protection against fire injuries:
Application and activation:
The fireplace insert is designed to use wood as fuel. The water content is max. 30% of dry weight. Logs should be stored in a dry and well
ventilated place for two years. Using excessively wet logs leads to smoke with a tar condensation which could damage the chimney. In any case
there is excessive enviromnental pollution. Logs should be between 30 – 50 cm.
Wood is a very gaseous fuel and needs a lot of secondary air. Regulation with the help of slow or permanent burning is not possible with this
kind of fuel. Heating output during wood burning is determined by the amount of the fuel used. The most ecological and economical is dry wood
burning because the heating quality of fresh wood is lower than that of dry wood.
Acceptable fuel, economical and ecological operation:
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As for burning waste, it must be stressed that burning material such as cardboard, painted wood, etc. are harmful for your fireplace insert and
furthermore is prohibited by the Emission Act. It is allowed to use firelighters, paper and small wood for lighting a fire only.
Do not use combustible liquid e.g. petrol, alcohol for lighting a fire and do not store similar kinds of liquid near your
The fireplace insert should start with a small fire at first so as not to harm it by very fast temperature rise. Smoke and the smell of burning which
may appear during the first lighting of a fire is a result of coating thermal curing. The room should be well aired during heating.
Check if all removable parts of the fireplace (block, deflector, grate and ash hole) are in the right position – in
accordance with the Equipment Certificate.
Lighting a fire:
Open the butterfly valve (pull the connecting rod on the right top side of the frame away from the fireplace insert. The butterfly valve of
fireplace inserts with a lift-up door is opened by a handle situated on the front of the surround. The butterfly valve is open if the handle points
upwards.( Stoking a fireplace insert is operated through a firebox door. At first bank up the fire with 2 or 3 smaller logs (space needed 0.5 – 1
kg) on the bottom of the firebox or the grate then some paper, paperboard or firelighter, then wood chips and finally small pieces of wood. It is
neccessary to open the moveable valve as far as possible. Now let the fire burn. Leave the door of the firebox open slightly after lighting a fire.
This will stop the glass sooting during lighting a fire. When the fire is burning well, add a few smaller logs. Shut the firebox door 20 – 30
minutes after lighting a fire.
Flat firebox:
Your fireplace insert is provided with a flat firebox. This means that it is possible to put only one layer of fuel on the cinder layer. Note
that heating output is directly influenced by the amount, kind and size of wood. If you add too much wood, the fireplace insert can be
heated to temperatures greater than allowed for in the construction plan. As a result the fireplace insert, other parts of the fireplace or the
building itself can be damaged. Do not add to the cinder layer more fuel than is recommended.
The optimum amount of fuel is recommended in the Equipment Certificate.
fireplace insert.
The first lighting:
Blanzek fireplace inserts are provided with a regulable air flap valve. Required combustion air comes as primary air through the grate and
branch channels and also as clearing air above the firebox door. For long-term use it is possible to close the butterfly valve, nearly close the
primary air input and open the secondary air valve.
Apart from using the suitable fuel and having an adequate chimney draught, the clearness of the glass front is influenced by the way the fireplace
is used. It is recommended to add only one layer of fuel and it is neccessary to make sure that the butterfly valve is open before you open the
door. If it is closed it is neccessary to open it (see Lighting a fire).
About 5 – 10 seconds before you open the firebox door you should close the discharge valve of the primary air input (left-on, right-off) to stop
smoke leakage from the firebox to the room. After additing fuel close the firebox door again. Then open all the discharge valves to reduce the
rate of fuel burning. When fuel burns, change the regulating again as above.
Add only the recommended amount of fuel. The fireplace must not run on any other kind of fuel.
At least once a day it is neccessary to remove ash, with the help of a clinkering bar, through the grate into the ash tray and discharge it. The best
time is in the morning because of the relatively cold state of the fireplace. Empty the ash tray when it is half full. It is possible to put wooden ash
on a compost or to use it as manure.
At least once a year or more often you should clean your fireplace when it is cold. You should clear away soot deposits in the smoke flue and on
the deflector. The deflector can be removed during clearing. Put it back after the clearing. An ash-collecting fan is good for the flue-gas
installation clearing. Staining of the glass door can be removed by using warm water and soap or using everyday window cleaner. (Do not use
any cleaners with an abrasive action!)
Air input setting during hands-off operation:
Fuel addition:
Open fires:
Open fires need to be constantly supervised!
Add only one fuel layer into the firebox so as not to overhang the block in its front part. The butterfly valve must be open.
Removal of ash:
Before emptying ash make sure that there are no cinders in it. Even with cold ash it is possible to find embers which
BeF Home, s.r.o.
Kotvrdovice 277
679 07 Kotvrdovice
Czech Republic
can cause a fire in an ash bin.
Cleaning and maintenance:
Tel. 516/428 240
Fax. 516/428 244
IČO: 25524682
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